Merge the code from asterisk/team/group/chan_unistim:
authorRussell Bryant <russell@russellbryant.com>
Fri, 2 Nov 2007 20:56:12 +0000 (20:56 +0000)
committerRussell Bryant <russell@russellbryant.com>
Fri, 2 Nov 2007 20:56:12 +0000 (20:56 +0000)
This introduces a new channel driver, chan_unistim, that supports the Unistim
VoIP protocol for Nortel phones.  The following models have been confirmed
to work: i2002, i2004 and i2050.

(closes issue #8864)
Reported by: c_hans
Patches:
      chan_unistim.patch uploaded by c (license 304)
      ustm_no_conf.diff uploaded by junky (license 177)
Tested by: c_hans, dbowerman, math, junky, loloski

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@88368 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES
CREDITS
channels/chan_unistim.c [new file with mode: 0644]
configs/unistim.conf.sample [new file with mode: 0644]
doc/unistim.txt [new file with mode: 0644]

diff --git a/CHANGES b/CHANGES
index 37e52a5..ea69fae 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -305,3 +305,6 @@ Miscellaneous
      It allows you to configure a prefix for auto-monitor recordings.
   * Added support for running your dialplan by writing one in lua.  See
      configs/extensions.lua.sample for examples of how to do this.
+ * Added a new channel driver, chan_unistim.  See doc/unistim.txt and
+    configs/unistim.conf.sample for details.  This new channel driver allows
+       you to use Nortel i2002, i2004, and i2050 phones with Asterisk.
diff --git a/CREDITS b/CREDITS
index 7cf9ec9..f035774 100644 (file)
--- a/CREDITS
+++ b/CREDITS
@@ -163,6 +163,10 @@ Paul Cadach - Bringing chan_h323 up to date, bug fixes, and more!
 Voop AS - Financial support for a lot of work with the SIP driver and the IAX
        trunk MTU patch
 
+Cedric Hans - Development of chan_unistim
+  cedric.hans(AT)mlkj.net
+
+
 === OTHER CONTRIBUTIONS ===
 John Todd - Monkey sounds and associated teletorture prompt
 Michael Jerris - bug marshaling
diff --git a/channels/chan_unistim.c b/channels/chan_unistim.c
new file mode 100644 (file)
index 0000000..bf0191d
--- /dev/null
@@ -0,0 +1,5628 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * UNISTIM channel driver for asterisk
+ *
+ * Copyright (C) 2005 - 2007, Cedric Hans
+ * 
+ * Cedric Hans <cedric.hans@mlkj.net>
+ *
+ * Asterisk 1.4 patch by Peter Be
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*!
+ * \file
+ *
+ * \brief chan_unistim channel driver for Asterisk
+ * \author Cedric Hans <cedric.hans@mlkj.net>
+ *
+ * Unistim (Unified Networks IP Stimulus) channel driver
+ * for Nortel i2002, i2004 and i2050
+ *
+ * \ingroup channel_drivers
+ */
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <sys/signal.h>
+#include <signal.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <arpa/inet.h>
+#include <ctype.h>
+
+#include "asterisk/lock.h"
+#include "asterisk/channel.h"
+#include "asterisk/config.h"
+#include "asterisk/logger.h"
+#include "asterisk/module.h"
+#include "asterisk/pbx.h"
+#include "asterisk/options.h"
+#include "asterisk/lock.h"
+#include "asterisk/sched.h"
+#include "asterisk/io.h"
+#include "asterisk/rtp.h"
+#include "asterisk/acl.h"
+#include "asterisk/callerid.h"
+#include "asterisk/cli.h"
+#include "asterisk/say.h"
+#include "asterisk/cdr.h"
+#include "asterisk/astdb.h"
+#include "asterisk/features.h"
+#include "asterisk/app.h"
+#include "asterisk/musiconhold.h"
+#include "asterisk/utils.h"
+#include "asterisk/causes.h"
+#include "asterisk/indications.h"
+#include "asterisk/dsp.h"
+#include "asterisk/devicestate.h"
+#include "asterisk/stringfields.h"
+#include "asterisk/abstract_jb.h"
+#include "asterisk/event.h"
+
+/*! IP_PKTINFO is not portable. It's used to retrieve our IP.
+   Comment the next line if your running *BSD */
+#define HAVE_PKTINFO 1
+
+/*! Beware, G729 and G723 are not supported by asterisk, except with the proper licence */
+#define CAPABILITY AST_FORMAT_ALAW | AST_FORMAT_ULAW    /* | AST_FORMAT_G729A | AST_FORMAT_G723_1 */
+
+#define DEFAULTCONTEXT   "default"
+#define DEFAULTCALLERID         "Unknown"
+#define DEFAULTCALLERNAME       " "
+#define USTM_LOG_DIR       "unistimHistory"
+
+/*! Size of the transmit buffer */
+#define MAX_BUF_SIZE       64
+/*! Number of slots for the transmit queue */
+#define MAX_BUF_NUMBER   50
+/*! Try x times before removing the phone */
+#define NB_MAX_RETRANSMIT       8
+/*! Nb of milliseconds waited when no events are scheduled */
+#define IDLE_WAIT             1000
+/*! Wait x milliseconds before resending a packet */
+#define RETRANSMIT_TIMER       2000
+/*! How often the mailbox is checked for new messages */
+#define TIMER_MWI             10000
+/*! Not used */
+#define DEFAULT_CODEC     0x00
+#define SIZE_PAGE             4096
+#define DEVICE_NAME_LEN         16
+#define AST_CONFIG_MAX_PATH     255
+#define MAX_ENTRY_LOG     30
+
+#define SUB_REAL               0
+#define SUB_THREEWAY       1
+#define MAX_SUBS               2
+
+enum autoprovision {
+       AUTOPROVISIONING_NO = 0,
+       AUTOPROVISIONING_YES,
+       AUTOPROVISIONING_DB,
+       AUTOPROVISIONING_TN
+};
+
+enum autoprov_extn {
+       /*! Do not create an extension into the default dialplan */
+       EXTENSION_NONE = 0,
+       /*! Prompt user for an extension number and register it */
+       EXTENSION_ASK,
+       /*! Register an extension with the line=> value */
+       EXTENSION_LINE,
+       /*! Used with AUTOPROVISIONING_TN */
+       EXTENSION_TN
+};
+#define OUTPUT_HANDSET   0xC0
+#define OUTPUT_HEADPHONE       0xC1
+#define OUTPUT_SPEAKER   0xC2
+
+#define VOLUME_LOW           0x01
+#define VOLUME_LOW_SPEAKER      0x03
+#define VOLUME_NORMAL     0x02
+#define VOLUME_INSANELY_LOUD    0x07
+
+#define MUTE_OFF               0x00
+#define MUTE_ON                 0xFF
+#define MUTE_ON_DISCRET         0xCE
+
+#define SIZE_HEADER         6
+#define SIZE_MAC_ADDR     17
+#define TEXT_LENGTH_MAX         24
+#define TEXT_LINE0           0x00
+#define TEXT_LINE1           0x20
+#define TEXT_LINE2           0x40
+#define TEXT_NORMAL         0x05
+#define TEXT_INVERSE       0x25
+#define STATUS_LENGTH_MAX       28
+
+#define FAV_ICON_NONE             0x00
+#define FAV_ICON_ONHOOK_BLACK     0x20
+#define FAV_ICON_ONHOOK_WHITE     0x21
+#define FAV_ICON_SPEAKER_ONHOOK_BLACK   0x22
+#define FAV_ICON_SPEAKER_ONHOOK_WHITE   0x23
+#define FAV_ICON_OFFHOOK_BLACK   0x24
+#define FAV_ICON_OFFHOOK_WHITE   0x25
+#define FAV_ICON_ONHOLD_BLACK     0x26
+#define FAV_ICON_ONHOLD_WHITE     0x27
+#define FAV_ICON_SPEAKER_OFFHOOK_BLACK  0x28
+#define FAV_ICON_SPEAKER_OFFHOOK_WHITE  0x29
+#define FAV_ICON_PHONE_BLACK       0x2A
+#define FAV_ICON_PHONE_WHITE       0x2B
+#define FAV_ICON_SPEAKER_ONHOLD_BLACK   0x2C
+#define FAV_ICON_SPEAKER_ONHOLD_WHITE   0x2D
+#define FAV_ICON_HEADPHONES         0x2E
+#define FAV_ICON_HEADPHONES_ONHOLD      0x2F
+#define FAV_ICON_HOME             0x30
+#define FAV_ICON_CITY             0x31
+#define FAV_ICON_SHARP           0x32
+#define FAV_ICON_PAGER           0x33
+#define FAV_ICON_CALL_CENTER       0x34
+#define FAV_ICON_FAX               0x35
+#define FAV_ICON_MAILBOX               0x36
+#define FAV_ICON_REFLECT               0x37
+#define FAV_ICON_COMPUTER             0x38
+#define FAV_ICON_FORWARD               0x39
+#define FAV_ICON_LOCKED                 0x3A
+#define FAV_ICON_TRASH           0x3B
+#define FAV_ICON_INBOX           0x3C
+#define FAV_ICON_OUTBOX                 0x3D
+#define FAV_ICON_MEETING               0x3E
+#define FAV_ICON_BOX               0x3F
+
+#define FAV_BLINK_FAST           0x20
+#define FAV_BLINK_SLOW           0x40
+
+#define FAV_MAX_LENGTH           0x0A
+
+static void dummy(char *dummy, ...)
+{
+       return;
+}
+
+/* #define DUMP_PACKET 1 */
+/* #define DEBUG_TIMER ast_verbose */
+
+#define DEBUG_TIMER dummy
+/*! Enable verbose output. can also be set with the CLI */
+static int unistimdebug = 0;
+static int unistim_reload(int fd, int argc, char *argv[]);
+static int unistim_port;
+static enum autoprovision autoprovisioning = AUTOPROVISIONING_NO;
+static int unistim_keepalive;
+static int unistimsock = -1;
+static struct io_context *io;
+static struct sched_context *sched;
+static struct sockaddr_in public_ip = { 0, };
+/*! give the IP address for the last packet received */
+static struct sockaddr_in addr_from;
+/*! size of the sockaddr_in (in WSARecvFrom) */
+static unsigned int size_addr_from = sizeof(addr_from);
+/*! Receive buffer address */
+static unsigned char *buff;
+/*! Used for test */
+static unsigned char flag = 0;
+static int unistim_reloading = 0;
+AST_MUTEX_DEFINE_STATIC(unistim_reload_lock);
+AST_MUTEX_DEFINE_STATIC(usecnt_lock);
+static int usecnt = 0;
+/* extern char ast_config_AST_LOG_DIR[AST_CONFIG_MAX_PATH]; */
+
+/*! This is the thread for the monitor which checks for input on the channels
+ * which are not currently in use.  */
+static pthread_t monitor_thread = AST_PTHREADT_NULL;
+
+/*! Protect the monitoring thread, so only one process can kill or start it, and not
+ *    when it's doing something critical. */
+AST_MUTEX_DEFINE_STATIC(monlock);
+/*! Protect the session list */
+AST_MUTEX_DEFINE_STATIC(sessionlock);
+/*! Protect the device list */
+AST_MUTEX_DEFINE_STATIC(devicelock);
+
+enum phone_state {
+       STATE_INIT,
+       STATE_AUTHDENY,
+       STATE_MAINPAGE,
+       STATE_EXTENSION,
+       STATE_DIALPAGE,
+       STATE_RINGING,
+       STATE_CALL,
+       STATE_SELECTCODEC,
+       STATE_CLEANING,
+       STATE_HISTORY
+};
+
+enum handset_state {
+       STATE_ONHOOK,
+       STATE_OFFHOOK,
+};
+
+enum phone_key {
+       KEY_0 = 0x40,
+       KEY_1 = 0x41,
+       KEY_2 = 0x42,
+       KEY_3 = 0x43,
+       KEY_4 = 0x44,
+       KEY_5 = 0x45,
+       KEY_6 = 0x46,
+       KEY_7 = 0x47,
+       KEY_8 = 0x48,
+       KEY_9 = 0x49,
+       KEY_STAR = 0x4a,
+       KEY_SHARP = 0x4b,
+       KEY_UP = 0x4c,
+       KEY_DOWN = 0x4d,
+       KEY_RIGHT = 0x4e,
+       KEY_LEFT = 0x4f,
+       KEY_QUIT = 0x50,
+       KEY_COPY = 0x51,
+       KEY_FUNC1 = 0x54,
+       KEY_FUNC2 = 0x55,
+       KEY_FUNC3 = 0x56,
+       KEY_FUNC4 = 0x57,
+       KEY_ONHOLD = 0x5b,
+       KEY_HANGUP = 0x5c,
+       KEY_MUTE = 0x5d,
+       KEY_HEADPHN = 0x5e,
+       KEY_LOUDSPK = 0x5f,
+       KEY_FAV0 = 0x60,
+       KEY_FAV1 = 0x61,
+       KEY_FAV2 = 0x62,
+       KEY_FAV3 = 0x63,
+       KEY_FAV4 = 0x64,
+       KEY_FAV5 = 0x65,
+       KEY_COMPUTR = 0x7b,
+       KEY_CONF = 0x7c,
+       KEY_SNDHIST = 0x7d,
+       KEY_RCVHIST = 0x7e,
+       KEY_INDEX = 0x7f
+};
+
+struct tone_zone_unistim {
+       char country[3];
+       int freq1;
+       int freq2;
+};
+
+static const struct tone_zone_unistim frequency[] = {
+       {"us", 350, 440},
+       {"fr", 440, 0},
+       {"au", 413, 438},
+       {"nl", 425, 0},
+       {"uk", 350, 440},
+       {"fi", 425, 0},
+       {"es", 425, 0},
+       {"jp", 400, 0},
+       {"no", 425, 0},
+       {"at", 420, 0},
+       {"nz", 400, 0},
+       {"tw", 350, 440},
+       {"cl", 400, 0},
+       {"se", 425, 0},
+       {"be", 425, 0},
+       {"sg", 425, 0},
+       {"il", 414, 0},
+       {"br", 425, 0},
+       {"hu", 425, 0},
+       {"lt", 425, 0},
+       {"pl", 425, 0},
+       {"za", 400, 0},
+       {"pt", 425, 0},
+       {"ee", 425, 0},
+       {"mx", 425, 0},
+       {"in", 400, 0},
+       {"de", 425, 0},
+       {"ch", 425, 0},
+       {"dk", 425, 0},
+       {"cn", 450, 0},
+       {"--", 0, 0}
+};
+
+struct wsabuf {
+       u_long len;
+       unsigned char *buf;
+};
+
+struct systemtime {
+       unsigned short w_year;
+       unsigned short w_month;
+       unsigned short w_day_of_week;
+       unsigned short w_day;
+       unsigned short w_hour;
+       unsigned short w_minute;
+       unsigned short w_second;
+       unsigned short w_milliseconds;
+};
+
+struct unistim_subchannel {
+       ast_mutex_t lock;
+       /*! SUBS_REAL or SUBS_THREEWAY */
+       unsigned int subtype;
+       /*! Asterisk channel used by the subchannel */
+       struct ast_channel *owner;
+       /*! Unistim line */
+       struct unistim_line *parent;
+       /*! RTP handle */
+       struct ast_rtp *rtp;
+       int alreadygone;
+       char ringvolume;
+       char ringstyle;
+};
+
+/*!
+ * \todo Convert to stringfields
+ */
+struct unistim_line {
+       ast_mutex_t lock;
+       /*! Like 200 */
+       char name[80];
+       /*! Like USTM/200@black */
+       char fullname[80];
+       /*! pointer to our current connection, channel... */
+       struct unistim_subchannel *subs[MAX_SUBS];
+       /*! Extension where to start */
+       char exten[AST_MAX_EXTENSION];
+       /*! Context to start in */
+       char context[AST_MAX_EXTENSION];
+       /*! Language for asterisk sounds */
+       char language[MAX_LANGUAGE];
+       /*! CallerID Number */
+       char cid_num[AST_MAX_EXTENSION];
+       /*! Mailbox for MWI */
+       char mailbox[AST_MAX_EXTENSION];
+       /*! Used by MWI */
+       int lastmsgssent;
+       /*! Used by MWI */
+       time_t nextmsgcheck;
+       /*! MusicOnHold class */
+       char musicclass[MAX_MUSICCLASS];
+       /*! Call group */
+       unsigned int callgroup;
+       /*! Pickup group */
+       unsigned int pickupgroup;
+       /*! Account code (for billing) */
+       char accountcode[80];
+       /*! AMA flags (for billing) */
+       int amaflags;
+       /*! Codec supported */
+       int capability;
+       struct unistim_line *next;
+       struct unistim_device *parent;
+};
+
+/*! 
+ * \brief A device containing one or more lines 
+ */
+static struct unistim_device {
+       int receiver_state;           /*!< state of the receiver (see ReceiverState) */
+       int size_phone_number;    /*!< size of the phone number */
+       char phone_number[16];    /*!< the phone number entered by the user */
+       char redial_number[16];  /*!< the last phone number entered by the user */
+       int phone_current;                    /*!< Number of the current phone */
+       int pos_fav;                        /*!< Position of the displayed favorites (used for scrolling) */
+       char id[18];                        /*!< mac address of the current phone in ascii */
+       char name[DEVICE_NAME_LEN];     /*!< name of the device */
+       int softkeylinepos;                  /*!< position of the line softkey (default 0) */
+       char softkeylabel[6][11];       /*!< soft key label */
+       char softkeynumber[6][16];      /*!< number dialed when the soft key is pressed */
+       char softkeyicon[6];        /*!< icon number */
+       char softkeydevice[6][16];      /*!< name of the device monitored */
+       struct unistim_device *sp[6];   /*!< pointer to the device monitored by this soft key */
+       char maintext0[25];                  /*!< when the phone is idle, display this string on line 0 */
+       char maintext1[25];                  /*!< when the phone is idle, display this string on line 1 */
+       char maintext2[25];                  /*!< when the phone is idle, display this string on line 2 */
+       char titledefault[13];    /*!< title (text before date/time) */
+       char datetimeformat;        /*!< format used for displaying time/date */
+       char contrast;                    /*!< contrast */
+       char country[3];                        /*!< country used for dial tone frequency */
+       struct ind_tone_zone *tz;              /*!< Tone zone for res_indications (ring, busy, congestion) */
+       char ringvolume;                        /*!< Ring volume */
+       char ringstyle;                  /*!< Ring melody */
+       int rtp_port;                      /*!< RTP port used by the phone */
+       int rtp_method;                  /*!< Select the unistim data used to establish a RTP session */
+       int status_method;                    /*!< Select the unistim packet used for sending status text */
+       char codec_number;                    /*!< The current codec used to make calls */
+       int missed_call;                        /*!< Number of call unanswered */
+       int callhistory;                        /*!< Allowed to record call history */
+       char lst_cid[TEXT_LENGTH_MAX];  /*!< Last callerID received */
+       char lst_cnm[TEXT_LENGTH_MAX];  /*!< Last callername recevied */
+       char call_forward[AST_MAX_EXTENSION];   /*!< Forward number */
+       int output;                                  /*!< Handset, headphone or speaker */
+       int previous_output;        /*!< Previous output */
+       int volume;                                  /*!< Default volume */
+       int mute;                                      /*!< Mute mode */
+       int moh;                                        /*!< Music on hold in progress */
+       int nat;                                        /*!< Used by the obscure ast_rtp_setnat */
+       enum autoprov_extn extension;   /*!< See ifdef EXTENSION for valid values */
+       char extension_number[11];      /*!< Extension number entered by the user */
+       char to_delete;                  /*!< Used in reload */
+       time_t start_call_timestamp;    /*!< timestamp for the length calculation of the call */
+       struct ast_silence_generator *silence_generator;
+       struct unistim_line *lines;
+       struct ast_ha *ha;
+       struct unistimsession *session;
+       struct unistim_device *next;
+} *devices = NULL;
+
+static struct unistimsession {
+       ast_mutex_t lock;
+       struct sockaddr_in sin;  /*!< IP address of the phone */
+       struct sockaddr_in sout;        /*!< IP address of server */
+       int timeout;                        /*!< time-out in ticks : resend packet if no ack was received before the timeout occured */
+       unsigned short seq_phone;       /*!< sequence number for the next packet (when we receive a request) */
+       unsigned short seq_server;      /*!< sequence number for the next packet (when we send a request) */
+       unsigned short last_seq_ack;    /*!< sequence number of the last ACK received */
+       unsigned long tick_next_ping;   /*!< time for the next ping */
+       int last_buf_available;  /*!< number of a free slot */
+       int nb_retransmit;                    /*!< number of retransmition */
+       int state;                                    /*!< state of the phone (see phone_state) */
+       int size_buff_entry;        /*!< size of the buffer used to enter datas */
+       char buff_entry[16];        /*!< Buffer for temporary datas */
+       char macaddr[18];                      /*!< mac adress of the phone (not always available) */
+       struct wsabuf wsabufsend[MAX_BUF_NUMBER];      /*!< Size of each paquet stored in the buffer array & pointer to this buffer */
+       unsigned char buf[MAX_BUF_NUMBER][MAX_BUF_SIZE];        /*!< Buffer array used to keep the lastest non-acked paquets */
+       struct unistim_device *device;
+       struct unistimsession *next;
+} *sessions = NULL;
+
+/*!
+ * \page Unistim datagram formats
+ *
+ * Format of datagrams :
+ * bytes 0 & 1 : ffff for discovery packet, 0000 for everything else
+ * byte 2 : sequence number (high part)
+ * byte 3 : sequence number (low part)
+ * byte 4 : 2 = ask question or send info, 1 = answer or ACK, 0 = retransmit request
+ * byte 5 : direction, 1 = server to phone, 2 = phone to server arguments
+ */
+
+const static unsigned char packet_rcv_discovery[] =
+       { 0xff, 0xff, 0xff, 0xff, 0x02, 0x02, 0xff, 0xff, 0xff, 0xff, 0x9e, 0x03, 0x08 };
+static unsigned char packet_send_discovery_ack[] =
+       { 0x00, 0x00, /*Initial Seq (2 bytes) */ 0x00, 0x00, 0x00, 0x01 };
+
+const static unsigned char packet_recv_firm_version[] =
+       { 0x00, 0x00, 0x00, 0x13, 0x9a, 0x0a, 0x02 };
+const static unsigned char packet_recv_pressed_key[] =
+       { 0x00, 0x00, 0x00, 0x13, 0x99, 0x04, 0x00 };
+const static unsigned char packet_recv_pick_up[] =
+       { 0x00, 0x00, 0x00, 0x13, 0x99, 0x03, 0x04 };
+const static unsigned char packet_recv_hangup[] =
+       { 0x00, 0x00, 0x00, 0x13, 0x99, 0x03, 0x03 };
+const static unsigned char packet_recv_r2[] = { 0x00, 0x00, 0x00, 0x13, 0x96, 0x03, 0x03 };
+
+/*! TransportAdapter */
+const static unsigned char packet_recv_resume_connection_with_server[] =
+       { 0xff, 0xff, 0xff, 0xff, 0x9e, 0x03, 0x08 };
+const static unsigned char packet_recv_mac_addr[] =
+       { 0xff, 0xff, 0xff, 0xff, 0x9a, 0x0d, 0x07, 0x31, 0x38 /*MacAddr */  };
+
+const static unsigned char packet_send_date_time3[] =
+       { 0x11, 0x09, 0x02, 0x02, /*Month */ 0x05, /*Day */ 0x06, /*Hour */ 0x07,
+/*Minutes */ 0x08, 0x32
+};
+const static unsigned char packet_send_date_time[] =
+       { 0x11, 0x09, 0x02, 0x0a, /*Month */ 0x05, /*Day */ 0x06, /*Hour */ 0x07, /*Minutes */
+0x08, 0x32, 0x17, 0x04, 0x24, 0x07, 0x19,
+       0x04, 0x07, 0x00, 0x19, 0x05, 0x09, 0x3e, 0x0f, 0x16, 0x05, 0x00, 0x80, 0x00, 0x1e,
+               0x05, 0x12, 0x00, 0x78
+};
+
+const static unsigned char packet_send_no_ring[] =
+       { 0x16, 0x04, 0x1a, 0x00, 0x16, 0x04, 0x11, 0x00 };
+const static unsigned char packet_send_s4[] =
+       { 0x16, 0x04, 0x1a, 0x00, 0x16, 0x04, 0x11, 0x00, 0x16, 0x06, 0x32, 0xdf, 0x00, 0xff,
+0x16, 0x05, 0x1c, 0x00, 0x00, 0x17, 0x05,
+       0x0b, 0x00, 0x00, 0x19, 0x04, 0x00, 0x00, 0x19, 0x04, 0x00, 0x08, 0x19, 0x04, 0x00,
+               0x10, 0x19, 0x04, 0x00, 0x18, 0x16, 0x05,
+       0x31, 0x00, 0x00, 0x16, 0x05, 0x04, 0x00, 0x00
+};
+const static unsigned char packet_send_call[] =
+       { 0x16, 0x04, 0x1a, 0x00, 0x16, 0x04, 0x11, 0x00, 0x16, 0x06, 0x32, 0xdf,
+       0x00, 0xff, 0x16, 0x05, 0x1c, 0x00, 0x00, 0x16, 0x0a, 0x38, 0x00, 0x12, 0xca, 0x03,
+               0xc0, 0xc3, 0xc5, 0x16, 0x16, 0x30, 0x00,
+       0x00, /*codec */ 0x12, 0x12, /* frames per packet */ 0x01, 0x5c, 0x00, /*port RTP */
+               0x0f, 0xa0, /* port RTCP */ 0x9c, 0x41,
+       /*port RTP */ 0x0f, 0xa0, /* port RTCP */ 0x9c, 0x41, /* IP Address */ 0x0a, 0x01,
+               0x16, 0x66
+};
+const static unsigned char packet_send_stream_based_tone_off[] =
+       { 0x16, 0x05, 0x1c, 0x00, 0x00 };
+
+/* const static unsigned char packet_send_Mute[] = { 0x16, 0x05, 0x04, 0x00, 0x00 };
+const static unsigned char packet_send_CloseAudioStreamRX[] = { 0x16, 0x05, 0x31, 0x00, 0xff };
+const static unsigned char packet_send_CloseAudioStreamTX[] = { 0x16, 0x05, 0x31, 0xff, 0x00 };*/
+const static unsigned char packet_send_stream_based_tone_on[] =
+       { 0x16, 0x06, 0x1b, 0x00, 0x00, 0x05 };
+const static unsigned char packet_send_stream_based_tone_single_freq[] =
+       { 0x16, 0x06, 0x1d, 0x00, 0x01, 0xb8 };
+const static unsigned char packet_send_stream_based_tone_dial_freq[] =
+       { 0x16, 0x08, 0x1d, 0x00, 0x01, 0xb8, 0x01, 0x5e };
+const static unsigned char packet_send_select_output[] =
+       { 0x16, 0x06, 0x32, 0xc0, 0x01, 0x00 };
+const static unsigned char packet_send_ring[] =
+       { 0x16, 0x06, 0x32, 0xdf, 0x00, 0xff, 0x16, 0x05, 0x1c, 0x00, 0x00, 0x16,
+       0x04, 0x1a, 0x01, 0x16, 0x05, 0x12, 0x13 /* Ring type 10 to 17 */ , 0x18, 0x16, 0x04, 0x18,     /* volume 00, 10, 20... */
+       0x20, 0x16, 0x04, 0x10, 0x00
+};
+const static unsigned char packet_send_end_call[] =
+       { 0x16, 0x06, 0x32, 0xdf, 0x00, 0xff, 0x16, 0x05, 0x31, 0x00, 0x00, 0x19, 0x04, 0x00,
+0x10, 0x19, 0x04, 0x00, 0x18, 0x16, 0x05,
+       0x04, 0x00, 0x00, 0x16, 0x04, 0x37, 0x10
+};
+const static unsigned char packet_send_s9[] =
+       { 0x16, 0x06, 0x32, 0xdf, 0x00, 0xff, 0x19, 0x04, 0x00, 0x10, 0x16, 0x05, 0x1c, 0x00,
+0x00 };
+const static unsigned char packet_send_rtp_packet_size[] =
+       { 0x16, 0x08, 0x38, 0x00, 0x00, 0xe0, 0x00, 0xa0 };
+const static unsigned char packet_send_jitter_buffer_conf[] =
+       { 0x16, 0x0e, 0x3a, 0x00, /* jitter */ 0x02, /* high water mark */ 0x04, 0x00, 0x00,
+/* early packet resync 2 bytes */ 0x3e, 0x80,
+       0x00, 0x00, /* late packet resync 2 bytes */ 0x3e, 0x80
+};
+
+/* Duration in ms div 2 (0x20 = 64ms, 0x08 = 16ms) 
+static unsigned char packet_send_StreamBasedToneCad[] =
+  { 0x16, 0x0a, 0x1e, 0x00, duration on  0x0a, duration off  0x0d, duration on 0x0a, duration off 0x0d, duration on 0x0a, duration off 0x2b }; */
+const static unsigned char packet_send_open_audio_stream_rx[] =
+       { 0x16, 0x1a, 0x30, 0x00, 0xff, /* Codec */ 0x00, 0x00, 0x01, 0x00, 0xb8, 0xb8, 0x0e,
+0x0e, 0x01, /* Port */ 0x14, 0x50, 0x00,
+       0x00, /* Port */ 0x14, 0x50, 0x00, 0x00, /* Dest IP */ 0x0a, 0x93, 0x69, 0x05
+};
+const static unsigned char packet_send_open_audio_stream_tx[] =
+       { 0x16, 0x1a, 0x30, 0xff, 0x00, 0x00, /* Codec */ 0x00, 0x01, 0x00, 0xb8, 0xb8, 0x0e,
+0x0e, 0x01, /* Local port */ 0x14, 0x50,
+       0x00, 0x00, /* Rmt Port */ 0x14, 0x50, 0x00, 0x00, /* Dest IP */ 0x0a, 0x93, 0x69, 0x05
+};
+
+const static unsigned char packet_send_open_audio_stream_rx3[] =
+       { 0x16, 0x1a, 0x30, 0x00, 0xff, /* Codec */ 0x00, 0x00, 0x02, 0x01, 0xb8, 0xb8, 0x06,
+0x06, 0x81, /* RTP Port */ 0x14, 0x50,
+/* RTCP Port */ 0x14,
+       0x51, /* RTP Port */ 0x14, 0x50, /* RTCP Port */ 0x00, 0x00, /* Dest IP */ 0x0a, 0x93,
+               0x69, 0x05
+};
+const static unsigned char packet_send_open_audio_stream_tx3[] =
+       { 0x16, 0x1a, 0x30, 0xff, 0x00, 0x00, /* Codec */ 0x00, 0x02, 0x01, 0xb8, 0xb8, 0x06,
+0x06, 0x81, /* RTP Local port */ 0x14, 0x50,
+       /* RTCP Port */ 0x00, 0x00, /* RTP Rmt Port */ 0x14, 0x50, /* RTCP Port */ 0x00, 0x00,
+               /* Dest IP */ 0x0a, 0x93, 0x69, 0x05
+};
+
+const static unsigned char packet_send_arrow[] = { 0x17, 0x04, 0x04, 0x00 };
+const static unsigned char packet_send_blink_cursor[] = { 0x17, 0x04, 0x10, 0x86 };
+const static unsigned char packet_send_date_time2[] = { 0x17, 0x04, 0x17, 0x3d, 0x11, 0x09, 0x02, 0x0a, /*Month */ 0x05,   /*Day */
+       0x06, /*Hour */ 0x07, /*Minutes */ 0x08, 0x32
+};
+const static unsigned char packet_send_Contrast[] =
+       { 0x17, 0x04, 0x24, /*Contrast */ 0x08 };
+const static unsigned char packet_send_StartTimer[] =
+       { 0x17, 0x05, 0x0b, 0x05, 0x00, 0x17, 0x08, 0x16, /* Text */ 0x44, 0x75, 0x72, 0xe9,
+0x65 };
+const static unsigned char packet_send_stop_timer[] = { 0x17, 0x05, 0x0b, 0x02, 0x00 };
+const static unsigned char packet_send_icon[] = { 0x17, 0x05, 0x14, /*pos */ 0x00, /*icon */ 0x25 };      /* display an icon in front of the text zone */
+const static unsigned char packet_send_S7[] = { 0x17, 0x06, 0x0f, 0x30, 0x07, 0x07 };
+const static unsigned char packet_send_set_pos_cursor[] =
+       { 0x17, 0x06, 0x10, 0x81, 0x04, /*pos */ 0x20 };
+
+/*static unsigned char packet_send_MonthLabelsDownload[] =
+  { 0x17, 0x0a, 0x15,  Month (3 char)  0x46, 0x65, 0x62, 0x4d, 0xe4, 0x72, 0x20 }; */
+const static unsigned char packet_send_favorite[] =
+       { 0x17, 0x0f, 0x19, 0x10, /*pos */ 0x01, /*name */ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+0x20, 0x20, 0x20, 0x20, /*end_name */ 0x19,
+       0x05, 0x0f, /*pos */ 0x01, /*icone */ 0x00
+};
+const static unsigned char packet_send_title[] =
+       { 0x17, 0x10, 0x19, 0x02, /*text */ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+0x20, 0x20, 0x20, 0x20 /*end_text */  };
+const static unsigned char packet_send_text[] =
+       { 0x17, 0x1e, 0x1b, 0x04, /*pos */ 0x00, /*inverse */ 0x25, /*text */ 0x20, 0x20,
+0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+       0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+               /*end_text */ 0x17, 0x04, 0x10, 0x87
+};
+const static unsigned char packet_send_status[] =
+       { 0x17, 0x20, 0x19, 0x08, /*text */ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+       0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20    /*end_text */
+};
+const static unsigned char packet_send_status2[] =
+       { 0x17, 0x0b, 0x19, /* pos [08|28|48|68] */ 0x00, /* text */ 0x20, 0x20, 0x20, 0x20,
+0x20, 0x20, 0x20 /* end_text */  };
+
+const static unsigned char packet_send_led_update[] = { 0x19, 0x04, 0x00, 0x00 };
+
+const static unsigned char packet_send_query_basic_manager_04[] = { 0x1a, 0x04, 0x01, 0x04 };
+const static unsigned char packet_send_query_mac_address[] = { 0x1a, 0x04, 0x01, 0x08 };
+const static unsigned char packet_send_query_basic_manager_10[] = { 0x1a, 0x04, 0x01, 0x10 };
+const static unsigned char packet_send_S1[] = { 0x1a, 0x07, 0x07, 0x00, 0x00, 0x00, 0x13 };
+
+static unsigned char packet_send_ping[] =
+       { 0x1e, 0x05, 0x12, 0x00, /*Watchdog timer */ 0x78 };
+
+#define BUFFSEND unsigned char buffsend[64] = { 0x00, 0x00, 0xaa, 0xbb, 0x02, 0x01 }
+
+const static char tdesc[] = "UNISTIM Channel Driver";
+const static char type[] = "USTM";
+
+/*! Protos */
+static struct ast_channel *unistim_new(struct unistim_subchannel *sub, int state);
+static int load_module(void);
+static int reload(void);
+static int unload_module(void);
+static int reload_config(void);
+static void show_main_page(struct unistimsession *pte);
+static struct ast_channel *unistim_request(const char *type, int format, 
+       void *data, int *cause);
+static int unistim_call(struct ast_channel *ast, char *dest, int timeout);
+static int unistim_hangup(struct ast_channel *ast);
+static int unistim_answer(struct ast_channel *ast);
+static struct ast_frame *unistim_read(struct ast_channel *ast);
+static int unistim_write(struct ast_channel *ast, struct ast_frame *frame);
+static int unistim_indicate(struct ast_channel *ast, int ind, const void *data,
+       size_t datalen);
+static int unistim_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
+static int unistim_senddigit_begin(struct ast_channel *ast, char digit);
+static int unistim_senddigit_end(struct ast_channel *ast, char digit, 
+       unsigned int duration);
+static int unistim_sendtext(struct ast_channel *ast, const char *text);
+
+static int write_entry_history(struct unistimsession *pte, FILE * f, char c, 
+       char *line1);
+static void change_callerid(struct unistimsession *pte, int type, char *callerid);
+
+static const struct ast_channel_tech unistim_tech = {
+       .type = type,
+       .description = tdesc,
+       .capabilities = CAPABILITY,
+       .properties = AST_CHAN_TP_WANTSJITTER,
+       .requester = unistim_request,
+       .call = unistim_call,
+       .hangup = unistim_hangup,
+       .answer = unistim_answer,
+       .read = unistim_read,
+       .write = unistim_write,
+       .indicate = unistim_indicate,
+       .fixup = unistim_fixup,
+       .send_digit_begin = unistim_senddigit_begin,
+       .send_digit_end = unistim_senddigit_end,
+       .send_text = unistim_sendtext,
+/*      .bridge = ast_rtp_bridge, */
+};
+
+static void display_last_error(const char *sz_msg)
+{
+       time_t cur_time;
+       
+       time(&cur_time);
+
+       /* Display the error message */
+       ast_log(LOG_WARNING, "%s %s : (%u) %s\n", ctime(&cur_time), sz_msg, errno,
+                       strerror(errno));
+}
+
+static void get_localtime(struct systemtime * systime)
+{
+       struct tm *stm;
+       time_t cur_time;
+       
+       time(&cur_time);
+
+       if ((stm = localtime(&cur_time)) == 0) {
+               display_last_error("Error in localtime()");
+               return;
+       }
+
+       systime->w_year = stm->tm_year;
+       systime->w_month = stm->tm_mon + 1;
+       systime->w_day_of_week = stm->tm_wday;
+       systime->w_day = stm->tm_mday;
+       systime->w_hour = stm->tm_hour;
+       systime->w_minute = stm->tm_min;
+       systime->w_second = stm->tm_sec;
+       systime->w_milliseconds = 0;
+}
+
+static unsigned int get_tick_count(void)
+{
+       struct timeval tv = ast_tvnow();;
+
+       return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+/* Send data to a phone without retransmit nor buffering */
+static void send_raw_client(int size, unsigned char *data, struct sockaddr_in *addr_to,
+       const struct sockaddr_in *addr_ourip)
+{
+#ifdef HAVE_PKTINFO
+       struct iovec msg_iov;
+       struct msghdr msg;
+       char buffer[CMSG_SPACE(sizeof(struct in_pktinfo))];
+       struct cmsghdr *ip_msg = (struct cmsghdr *) buffer;
+       struct in_pktinfo *pki = (struct in_pktinfo *) CMSG_DATA(ip_msg);
+
+       msg_iov.iov_base = data;
+       msg_iov.iov_len = size;
+
+       msg.msg_name = addr_to;  /* optional address */
+       msg.msg_namelen = sizeof(struct sockaddr_in);   /* size of address */
+       msg.msg_iov = &msg_iov;  /* scatter/gather array */
+       msg.msg_iovlen = 1;                  /* # elements in msg_iov */
+       msg.msg_control = ip_msg;       /* ancillary data */
+       msg.msg_controllen = sizeof(buffer);    /* ancillary data buffer len */
+       msg.msg_flags = 0;                    /* flags on received message */
+
+       ip_msg->cmsg_len = CMSG_LEN(sizeof(*pki));
+       ip_msg->cmsg_level = SOL_IP;
+       ip_msg->cmsg_type = IP_PKTINFO;
+       pki->ipi_ifindex = 0;      /* Interface index, 0 = use interface specified in routing table */
+       pki->ipi_spec_dst.s_addr = addr_ourip->sin_addr.s_addr; /* Local address */
+       /* pki->ipi_addr = ;   Header Destination address - ignored by kernel */
+
+#ifdef DUMP_PACKET
+       if (unistimdebug) {
+               int tmp;
+               char iabuf[INET_ADDRSTRLEN];
+               char iabuf2[INET_ADDRSTRLEN];
+               ast_verbose("\n**> From %s sending %d bytes to %s ***\n",
+                                       ast_inet_ntoa(addr_ourip->sin_addr), (int) size,
+                                       ast_inet_ntoa(addr_to->sin_addr));
+               for (tmp = 0; tmp < size; tmp++)
+                       ast_verbose("%.2x ", (unsigned char) data[tmp]);
+               ast_verbose("\n******************************************\n");
+
+       }
+#endif
+
+       if (sendmsg(unistimsock, &msg, 0) == -1)
+               display_last_error("Error sending datas");
+#else
+       if (sendto(unistimsock, data, size, 0, (struct sockaddr *) addr_to, sizeof(*addr_to))
+               == -1)
+               display_last_error("Error sending datas");
+#endif
+}
+
+static void send_client(int size, const unsigned char *data, struct unistimsession *pte)
+{
+       unsigned int tick;
+       int buf_pos;
+       unsigned short *sdata = (unsigned short *) data;
+
+       ast_mutex_lock(&pte->lock);
+       buf_pos = pte->last_buf_available;
+
+       if (buf_pos >= MAX_BUF_NUMBER) {
+               ast_log(LOG_WARNING, "Error : send queue overflow\n");
+               ast_mutex_unlock(&pte->lock);
+               return;
+       }
+       sdata[1] = ntohs(++(pte->seq_server));
+       pte->wsabufsend[buf_pos].len = size;
+       memcpy(pte->wsabufsend[buf_pos].buf, data, size);
+
+       tick = get_tick_count();
+       pte->timeout = tick + RETRANSMIT_TIMER;
+
+/*#ifdef DUMP_PACKET */
+       if ((unistimdebug) && (option_verbose > 5)) {
+               ast_verbose("Sending datas with seq #0x%.4x Using slot #%d :\n", pte->seq_server,
+                                       buf_pos);
+       }
+/*#endif */
+       send_raw_client(pte->wsabufsend[buf_pos].len, pte->wsabufsend[buf_pos].buf, &(pte->sin),
+                                 &(pte->sout));
+       pte->last_buf_available++;
+       ast_mutex_unlock(&pte->lock);
+}
+
+static void send_ping(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if ((unistimdebug) && (option_verbose > 5))
+               ast_verbose("Sending ping\n");
+       pte->tick_next_ping = get_tick_count() + unistim_keepalive;
+       memcpy(buffsend + SIZE_HEADER, packet_send_ping, sizeof(packet_send_ping));
+       send_client(SIZE_HEADER + sizeof(packet_send_ping), buffsend, pte);
+}
+
+static int get_to_address(int fd, struct sockaddr_in *toAddr)
+{
+#ifdef HAVE_PKTINFO
+       int err;
+       struct msghdr msg;
+       struct {
+               struct cmsghdr cm;
+               int len;
+               struct in_addr address;
+       } ip_msg;
+
+       /* Zero out the structures before we use them */
+       /* This sets several key values to NULL */
+       memset(&msg, 0, sizeof(msg));
+       memset(&ip_msg, 0, sizeof(ip_msg));
+
+       /* Initialize the message structure */
+       msg.msg_control = &ip_msg;
+       msg.msg_controllen = sizeof(ip_msg);
+       /* Get info about the incoming packet */
+       err = recvmsg(fd, &msg, MSG_PEEK);
+       if (err == -1)
+               ast_log(LOG_WARNING, "recvmsg returned an error: %s\n", strerror(errno));
+       memcpy(&toAddr->sin_addr, &ip_msg.address, sizeof(struct in_addr));
+       return err;
+#else
+       memcpy(&toAddr, &public_ip, sizeof(&toAddr));
+       return 0;
+#endif
+}
+
+/* Allocate memory & initialize structures for a new phone */
+/* addr_from : ip address of the phone */
+static struct unistimsession *create_client(const struct sockaddr_in *addr_from)
+{
+       int tmp;
+       struct unistimsession *s;
+
+       if (!(s = ast_calloc(1, sizeof(*s))))
+               return NULL;
+
+       memcpy(&s->sin, addr_from, sizeof(struct sockaddr_in));
+       get_to_address(unistimsock, &s->sout);
+       if (unistimdebug) {
+               ast_verbose
+                       ("Creating a new entry for the phone from %s received via server ip %s\n",
+                        ast_inet_ntoa(addr_from->sin_addr), ast_inet_ntoa(s->sout.sin_addr));
+       }
+       ast_mutex_init(&s->lock);
+       ast_mutex_lock(&sessionlock);
+       s->next = sessions;
+       sessions = s;
+
+       s->timeout = get_tick_count() + RETRANSMIT_TIMER;
+       s->seq_phone = (short) 0x0000;
+       s->seq_server = (short) 0x0000;
+       s->last_seq_ack = (short) 0x000;
+       s->last_buf_available = 0;
+       s->nb_retransmit = 0;
+       s->state = STATE_INIT;
+       s->tick_next_ping = get_tick_count() + unistim_keepalive;
+       /* Initialize struct wsabuf  */
+       for (tmp = 0; tmp < MAX_BUF_NUMBER; tmp++) {
+               s->wsabufsend[tmp].buf = s->buf[tmp];
+       }
+       ast_mutex_unlock(&sessionlock);
+       return s;
+}
+
+static void send_end_call(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending end call\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_end_call, sizeof(packet_send_end_call));
+       send_client(SIZE_HEADER + sizeof(packet_send_end_call), buffsend, pte);
+}
+
+static void set_ping_timer(struct unistimsession *pte)
+{
+       unsigned int tick;
+
+       pte->timeout = pte->tick_next_ping;
+       DEBUG_TIMER("tick = %u next ping at %u tick\n", tick, pte->timeout);
+       return;
+}
+
+/* Checking if our send queue is empty,
+ * if true, setting up a timer for keepalive */
+static void check_send_queue(struct unistimsession *pte)
+{
+       /* Check if our send queue contained only one element */
+       if (pte->last_buf_available == 1) {
+               if ((unistimdebug) && (option_verbose > 5))
+                       ast_verbose("Our single packet was ACKed.\n");
+               pte->last_buf_available--;
+               set_ping_timer(pte);
+               return;
+       }
+       /* Check if this ACK catch up our latest packet */
+       else if (pte->last_seq_ack + 1 == pte->seq_server + 1) {
+               if ((unistimdebug) && (option_verbose > 5))
+                       ast_verbose("Our send queue is completely ACKed.\n");
+               pte->last_buf_available = 0;    /* Purge the send queue */
+               set_ping_timer(pte);
+               return;
+       }
+       if ((unistimdebug) && (option_verbose > 5))
+               ast_verbose("We still have packets in our send queue\n");
+       return;
+}
+
+static void send_start_timer(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending start timer\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_StartTimer, sizeof(packet_send_StartTimer));
+       send_client(SIZE_HEADER + sizeof(packet_send_StartTimer), buffsend, pte);
+}
+
+static void send_stop_timer(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending stop timer\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_stop_timer, sizeof(packet_send_stop_timer));
+       send_client(SIZE_HEADER + sizeof(packet_send_stop_timer), buffsend, pte);
+}
+
+static void Sendicon(unsigned char pos, unsigned char status, struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending icon pos %d with status 0x%.2x\n", pos, status);
+       memcpy(buffsend + SIZE_HEADER, packet_send_icon, sizeof(packet_send_icon));
+       buffsend[9] = pos;
+       buffsend[10] = status;
+       send_client(SIZE_HEADER + sizeof(packet_send_icon), buffsend, pte);
+}
+
+static void send_tone(struct unistimsession *pte, uint16_t tone1, uint16_t tone2)
+{
+       BUFFSEND;
+       if (!tone1) {
+               if (unistimdebug)
+                       ast_verbose("Sending Stream Based Tone Off\n");
+               memcpy(buffsend + SIZE_HEADER, packet_send_stream_based_tone_off,
+                          sizeof(packet_send_stream_based_tone_off));
+               send_client(SIZE_HEADER + sizeof(packet_send_stream_based_tone_off), buffsend, pte);
+               return;
+       }
+       /* Since most of the world use a continuous tone, it's useless
+          if (unistimdebug)
+          ast_verbose ("Sending Stream Based Tone Cadence Download\n");
+          memcpy (buffsend + SIZE_HEADER, packet_send_StreamBasedToneCad, sizeof (packet_send_StreamBasedToneCad));
+          send_client (SIZE_HEADER + sizeof (packet_send_StreamBasedToneCad), buffsend, pte); */
+       if (unistimdebug)
+               ast_verbose("Sending Stream Based Tone Frequency Component List Download %d %d\n",
+                                       tone1, tone2);
+       tone1 *= 8;
+       if (!tone2) {
+               memcpy(buffsend + SIZE_HEADER, packet_send_stream_based_tone_single_freq,
+                          sizeof(packet_send_stream_based_tone_single_freq));
+               buffsend[10] = (tone1 & 0xff00) >> 8;
+               buffsend[11] = (tone1 & 0x00ff);
+               send_client(SIZE_HEADER + sizeof(packet_send_stream_based_tone_single_freq), buffsend,
+                                  pte);
+       } else {
+               tone2 *= 8;
+               memcpy(buffsend + SIZE_HEADER, packet_send_stream_based_tone_dial_freq,
+                          sizeof(packet_send_stream_based_tone_dial_freq));
+               buffsend[10] = (tone1 & 0xff00) >> 8;
+               buffsend[11] = (tone1 & 0x00ff);
+               buffsend[12] = (tone2 & 0xff00) >> 8;
+               buffsend[13] = (tone2 & 0x00ff);
+               send_client(SIZE_HEADER + sizeof(packet_send_stream_based_tone_dial_freq), buffsend,
+                                  pte);
+       }
+
+       if (unistimdebug)
+               ast_verbose("Sending Stream Based Tone On\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_stream_based_tone_on,
+                  sizeof(packet_send_stream_based_tone_on));
+       send_client(SIZE_HEADER + sizeof(packet_send_stream_based_tone_on), buffsend, pte);
+}
+
+/* Positions for favorites
+ |--------------------|
+ |  5      2    |
+ |  4      1    |
+ |  3      0    |
+*/
+
+/* status (icons) : 00 = nothing, 2x/3x = see parser.h, 4x/5x = blink fast, 6x/7x = blink slow */
+static void
+send_favorite(unsigned char pos, unsigned char status, struct unistimsession *pte,
+                        const char *text)
+{
+       BUFFSEND;
+       int i;
+
+       if (unistimdebug)
+               ast_verbose("Sending favorite pos %d with status 0x%.2x\n", pos, status);
+       memcpy(buffsend + SIZE_HEADER, packet_send_favorite, sizeof(packet_send_favorite));
+       buffsend[10] = pos;
+       buffsend[24] = pos;
+       buffsend[25] = status;
+       i = strlen(text);
+       if (i > FAV_MAX_LENGTH)
+               i = FAV_MAX_LENGTH;
+       memcpy(buffsend + FAV_MAX_LENGTH + 1, text, i);
+       send_client(SIZE_HEADER + sizeof(packet_send_favorite), buffsend, pte);
+}
+
+static void refresh_all_favorite(struct unistimsession *pte)
+{
+       int i = 0;
+
+       if (unistimdebug)
+               ast_verbose("Refreshing all favorite\n");
+       for (i = 0; i < 6; i++) {
+               if ((pte->device->softkeyicon[i] <= FAV_ICON_HEADPHONES_ONHOLD) &&
+                       (pte->device->softkeylinepos != i))
+                       send_favorite((unsigned char) i, pte->device->softkeyicon[i] + 1, pte,
+                                                pte->device->softkeylabel[i]);
+               else
+                       send_favorite((unsigned char) i, pte->device->softkeyicon[i], pte,
+                                                pte->device->softkeylabel[i]);
+
+       }
+}
+
+/* Change the status for this phone (pte) and update for each phones where pte is bookmarked
+ * use FAV_ICON_*_BLACK constant in status parameters */
+static void change_favorite_icon(struct unistimsession *pte, unsigned char status)
+{
+       struct unistim_device *d = devices;
+       int i;
+       /* Update the current phone */
+       if (pte->state != STATE_CLEANING)
+               send_favorite(pte->device->softkeylinepos, status, pte,
+                                        pte->device->softkeylabel[pte->device->softkeylinepos]);
+       /* Notify other phones if we're in their bookmark */
+       while (d) {
+               for (i = 0; i < 6; i++) {
+                       if (d->sp[i] == pte->device) {  /* It's us ? */
+                               if (d->softkeyicon[i] != status) {      /* Avoid resending the same icon */
+                                       d->softkeyicon[i] = status;
+                                       if (d->session)
+                                               send_favorite(i, status + 1, d->session, d->softkeylabel[i]);
+                               }
+                       }
+               }
+               d = d->next;
+       }
+}
+
+static int RegisterExtension(const struct unistimsession *pte)
+{
+       if (unistimdebug)
+               ast_verbose("Trying to register extension '%s' into context '%s' to %s\n",
+                                       pte->device->extension_number, pte->device->lines->context,
+                                       pte->device->lines->fullname);
+       return ast_add_extension(pte->device->lines->context, 0,
+                                                        pte->device->extension_number, 1, NULL, NULL, "Dial",
+                                                        pte->device->lines->fullname, 0, "Unistim");
+}
+
+static int UnregisterExtension(const struct unistimsession *pte)
+{
+       if (unistimdebug)
+               ast_verbose("Trying to unregister extension '%s' context '%s'\n",
+                                       pte->device->extension_number, pte->device->lines->context);
+       return ast_context_remove_extension(pte->device->lines->context,
+                                                                               pte->device->extension_number, 1, "Unistim");
+}
+
+/* Free memory allocated for a phone */
+static void close_client(struct unistimsession *s)
+{
+       struct unistim_subchannel *sub;
+       struct unistimsession *cur, *prev = NULL;
+       ast_mutex_lock(&sessionlock);
+       cur = sessions;
+       /* Looking for the session in the linked chain */
+       while (cur) {
+               if (cur == s)
+                       break;
+               prev = cur;
+               cur = cur->next;
+       }
+       if (cur) {                                    /* Session found ? */
+               if (cur->device) {            /* This session was registred ? */
+                       s->state = STATE_CLEANING;
+                       if (unistimdebug)
+                               ast_verbose("close_client session %p device %p lines %p sub %p\n",
+                                                       s, s->device, s->device->lines,
+                                                       s->device->lines->subs[SUB_REAL]);
+                       change_favorite_icon(s, FAV_ICON_NONE);
+                       sub = s->device->lines->subs[SUB_REAL];
+                       if (sub) {
+                               if (sub->owner) {       /* Call in progress ? */
+                                       if (unistimdebug)
+                                               ast_verbose("Aborting call\n");
+                                       ast_queue_hangup(sub->owner);
+                               }
+                       } else
+                               ast_log(LOG_WARNING, "Freeing a client with no subchannel !\n");
+                       if (!ast_strlen_zero(s->device->extension_number))
+                               UnregisterExtension(s);
+                       cur->device->session = NULL;
+               } else {
+                       if (unistimdebug)
+                               ast_verbose("Freeing an unregistered client\n");
+               }
+               if (prev)
+                       prev->next = cur->next;
+               else
+                       sessions = cur->next;
+               ast_mutex_destroy(&s->lock);
+               free(s);
+       } else
+               ast_log(LOG_WARNING, "Trying to delete non-existant session %p?\n", s);
+       ast_mutex_unlock(&sessionlock);
+       return;
+}
+
+/* Return 1 if the session chained link was modified */
+static int send_retransmit(struct unistimsession *pte)
+{
+       int i;
+
+       ast_mutex_lock(&pte->lock);
+       if (++pte->nb_retransmit >= NB_MAX_RETRANSMIT) {
+               if (unistimdebug)
+                       ast_verbose("Too many retransmit - freeing client\n");
+               ast_mutex_unlock(&pte->lock);
+               close_client(pte);
+               return 1;
+       }
+       pte->timeout = get_tick_count() + RETRANSMIT_TIMER;
+
+       for (i = pte->last_buf_available - (pte->seq_server - pte->last_seq_ack);
+                i < pte->last_buf_available; i++) {
+               if (i < 0) {
+                       ast_log(LOG_WARNING,
+                                       "Asked to retransmit an ACKed slot ! last_buf_available=%d, seq_server = #0x%.4x last_seq_ack = #0x%.4x\n",
+                                       pte->last_buf_available, pte->seq_server, pte->last_seq_ack);
+                       continue;
+               }
+
+               if (unistimdebug) {
+                       unsigned short *sbuf = (unsigned short *) pte->wsabufsend[i].buf;
+                       unsigned short seq;
+
+                       seq = ntohs(sbuf[1]);
+                       ast_verbose("Retransmit slot #%d (seq=#0x%.4x), last ack was #0x%.4x\n", i,
+                                               seq, pte->last_seq_ack);
+               }
+               send_raw_client(pte->wsabufsend[i].len, pte->wsabufsend[i].buf, &pte->sin,
+                                         &pte->sout);
+       }
+       ast_mutex_unlock(&pte->lock);
+       return 0;
+}
+
+/* inverse : TEXT_INVERSE : yes, TEXT_NORMAL  : no */
+static void
+send_text(unsigned char pos, unsigned char inverse, struct unistimsession *pte,
+                const char *text)
+{
+       int i;
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending text at pos %d, inverse flag %d\n", pos, inverse);
+       memcpy(buffsend + SIZE_HEADER, packet_send_text, sizeof(packet_send_text));
+       buffsend[10] = pos;
+       buffsend[11] = inverse;
+       i = strlen(text);
+       if (i > TEXT_LENGTH_MAX)
+               i = TEXT_LENGTH_MAX;
+       memcpy(buffsend + 12, text, i);
+       send_client(SIZE_HEADER + sizeof(packet_send_text), buffsend, pte);
+}
+
+static void send_text_status(struct unistimsession *pte, const char *text)
+{
+       BUFFSEND;
+       int i;
+       if (unistimdebug)
+               ast_verbose("Sending status text\n");
+       if (pte->device) {
+               if (pte->device->status_method == 1) {  /* For new firmware and i2050 soft phone */
+                       int n = strlen(text);
+                       /* Must send individual button separately */
+                       int j;
+                       for (i = 0, j = 0; i < 4; i++, j += 7) {
+                               int pos = 0x08 + (i * 0x20);
+                               memcpy(buffsend + SIZE_HEADER, packet_send_status2,
+                                          sizeof(packet_send_status2));
+
+                               buffsend[9] = pos;
+                               memcpy(buffsend + 10, (j < n) ? (text + j) : "       ", 7);
+                               send_client(SIZE_HEADER + sizeof(packet_send_status2), buffsend, pte);
+                       }
+                       return;
+               }
+       }
+
+
+       memcpy(buffsend + SIZE_HEADER, packet_send_status, sizeof(packet_send_status));
+       i = strlen(text);
+       if (i > STATUS_LENGTH_MAX)
+               i = STATUS_LENGTH_MAX;
+       memcpy(buffsend + 10, text, i);
+       send_client(SIZE_HEADER + sizeof(packet_send_status), buffsend, pte);
+
+}
+
+/* led values in hexa : 0 = bar off, 1 = bar on, 2 = bar 1s on/1s off, 3 = bar 2.5s on/0.5s off
+ * 4 = bar 0.6s on/0.3s off, 5 = bar 0.5s on/0.5s off, 6 = bar 2s on/0.5s off
+ * 7 = bar off, 8 = speaker off, 9 = speaker on, 10 = headphone off, 11 = headphone on
+ * 18 = mute off, 19 mute on */
+static void send_led_update(struct unistimsession *pte, unsigned char led)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending led_update (%x)\n", led);
+       memcpy(buffsend + SIZE_HEADER, packet_send_led_update, sizeof(packet_send_led_update));
+       buffsend[9] = led;
+       send_client(SIZE_HEADER + sizeof(packet_send_led_update), buffsend, pte);
+}
+
+/* output = OUTPUT_HANDSET, OUTPUT_HEADPHONE or OUTPUT_SPEAKER
+ * volume = VOLUME_LOW, VOLUME_NORMAL, VOLUME_INSANELY_LOUD
+ * mute = MUTE_OFF, MUTE_ON */
+static void
+send_select_output(struct unistimsession *pte, unsigned char output, unsigned char volume,
+                                unsigned char mute)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending select output packet output=%x volume=%x mute=%x\n", output,
+                                       volume, mute);
+       memcpy(buffsend + SIZE_HEADER, packet_send_select_output,
+                  sizeof(packet_send_select_output));
+       buffsend[9] = output;
+       if (output == OUTPUT_SPEAKER)
+               volume = VOLUME_LOW_SPEAKER;
+       else
+               volume = VOLUME_LOW;
+       buffsend[10] = volume;
+       if (mute == MUTE_ON_DISCRET)
+               buffsend[11] = MUTE_ON;
+       else
+               buffsend[11] = mute;
+       send_client(SIZE_HEADER + sizeof(packet_send_select_output), buffsend, pte);
+       if (mute == MUTE_OFF)
+               send_led_update(pte, 0x18);
+       else if (mute == MUTE_ON)
+               send_led_update(pte, 0x19);
+       pte->device->mute = mute;
+       if (output == OUTPUT_HANDSET) {
+               if (mute == MUTE_ON)
+                       change_favorite_icon(pte, FAV_ICON_ONHOLD_BLACK);
+               else
+                       change_favorite_icon(pte, FAV_ICON_OFFHOOK_BLACK);
+               send_led_update(pte, 0x08);
+               send_led_update(pte, 0x10);
+       } else if (output == OUTPUT_HEADPHONE) {
+               if (mute == MUTE_ON)
+                       change_favorite_icon(pte, FAV_ICON_HEADPHONES_ONHOLD);
+               else
+                       change_favorite_icon(pte, FAV_ICON_HEADPHONES);
+               send_led_update(pte, 0x08);
+               send_led_update(pte, 0x11);
+       } else if (output == OUTPUT_SPEAKER) {
+               send_led_update(pte, 0x10);
+               send_led_update(pte, 0x09);
+               if (pte->device->receiver_state == STATE_OFFHOOK) {
+                       if (mute == MUTE_ON)
+                               change_favorite_icon(pte, FAV_ICON_SPEAKER_ONHOLD_BLACK);
+                       else
+                               change_favorite_icon(pte, FAV_ICON_SPEAKER_ONHOOK_BLACK);
+               } else {
+                       if (mute == MUTE_ON)
+                               change_favorite_icon(pte, FAV_ICON_SPEAKER_ONHOLD_BLACK);
+                       else
+                               change_favorite_icon(pte, FAV_ICON_SPEAKER_OFFHOOK_BLACK);
+               }
+       } else
+               ast_log(LOG_WARNING, "Invalid ouput (%d)\n", output);
+       if (output != pte->device->output)
+               pte->device->previous_output = pte->device->output;
+       pte->device->output = output;
+}
+
+static void send_ring(struct unistimsession *pte, char volume, char style)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending ring packet\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_ring, sizeof(packet_send_ring));
+       buffsend[24] = style + 0x10;
+       buffsend[29] = volume * 0x10;
+       send_client(SIZE_HEADER + sizeof(packet_send_ring), buffsend, pte);
+}
+
+static void send_no_ring(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending no ring packet\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_no_ring, sizeof(packet_send_no_ring));
+       send_client(SIZE_HEADER + sizeof(packet_send_no_ring), buffsend, pte);
+}
+
+static void send_texttitle(struct unistimsession *pte, const char *text)
+{
+       BUFFSEND;
+       int i;
+       if (unistimdebug)
+               ast_verbose("Sending title text\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_title, sizeof(packet_send_title));
+       i = strlen(text);
+       if (i > 12)
+               i = 12;
+       memcpy(buffsend + 10, text, i);
+       send_client(SIZE_HEADER + sizeof(packet_send_title), buffsend, pte);
+
+}
+
+static void SendTest(struct unistimsession *pte)
+{
+       char text[TEXT_LENGTH_MAX];
+       int i;
+       if (unistimdebug)
+               ast_verbose("Sending test packet %x\n", flag);
+
+       sprintf(text, "first/last char0x%x/0x%x", flag, flag + TEXT_LENGTH_MAX - 1);
+       send_text(TEXT_LINE1, TEXT_NORMAL, pte, text);
+
+       for (i = 0; i < TEXT_LENGTH_MAX; i++) {
+               text[i] = flag++;
+       }
+       text[i] = '\0';
+       send_text(TEXT_LINE0, TEXT_NORMAL, pte, text);
+}
+static void send_date_time(struct unistimsession *pte)
+{
+       BUFFSEND;
+       struct systemtime systime;
+       systime.w_year = systime.w_month = systime.w_day_of_week = 0;
+       systime.w_day = systime.w_hour = systime.w_minute = 0;
+       systime.w_second = systime.w_milliseconds = 0;
+
+       if (unistimdebug)
+               ast_verbose("Sending Time & Date\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_date_time, sizeof(packet_send_date_time));
+       get_localtime(&systime);
+       buffsend[10] = (unsigned char) systime.w_month;
+       buffsend[11] = (unsigned char) systime.w_day;
+       buffsend[12] = (unsigned char) systime.w_hour;
+       buffsend[13] = (unsigned char) systime.w_minute;
+       send_client(SIZE_HEADER + sizeof(packet_send_date_time), buffsend, pte);
+}
+
+static void send_date_time2(struct unistimsession *pte)
+{
+       BUFFSEND;
+       struct systemtime systime;
+       systime.w_year = systime.w_month = systime.w_day_of_week = 0;
+       systime.w_day = systime.w_hour = systime.w_minute = 0;
+       systime.w_second = systime.w_milliseconds = 0;
+
+       if (unistimdebug)
+               ast_verbose("Sending Time & Date #2\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_date_time2, sizeof(packet_send_date_time2));
+       get_localtime(&systime);
+       if (pte->device)
+               buffsend[9] = pte->device->datetimeformat;
+       else
+               buffsend[9] = 61;
+       buffsend[14] = (unsigned char) systime.w_month;
+       buffsend[15] = (unsigned char) systime.w_day;
+       buffsend[16] = (unsigned char) systime.w_hour;
+       buffsend[17] = (unsigned char) systime.w_minute;
+       send_client(SIZE_HEADER + sizeof(packet_send_date_time2), buffsend, pte);
+}
+
+static void send_date_time3(struct unistimsession *pte)
+{
+       BUFFSEND;
+       struct systemtime systime;
+       systime.w_year = systime.w_month = systime.w_day_of_week = 0;
+       systime.w_day = systime.w_hour = systime.w_minute = 0;
+       systime.w_second = systime.w_milliseconds = 0;
+
+       if (unistimdebug)
+               ast_verbose("Sending Time & Date #3\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_date_time3, sizeof(packet_send_date_time3));
+       get_localtime(&systime);
+       buffsend[10] = (unsigned char) systime.w_month;
+       buffsend[11] = (unsigned char) systime.w_day;
+       buffsend[12] = (unsigned char) systime.w_hour;
+       buffsend[13] = (unsigned char) systime.w_minute;
+       send_client(SIZE_HEADER + sizeof(packet_send_date_time3), buffsend, pte);
+}
+
+static void send_blink_cursor(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending set blink\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_blink_cursor, sizeof(packet_send_blink_cursor));
+       send_client(SIZE_HEADER + sizeof(packet_send_blink_cursor), buffsend, pte);
+       return;
+}
+
+/* pos : 0xab (a=0/2/4 = line ; b = row) */
+static void send_cursor_pos(struct unistimsession *pte, unsigned char pos)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending set cursor position\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_set_pos_cursor,
+                  sizeof(packet_send_set_pos_cursor));
+       buffsend[11] = pos;
+       send_client(SIZE_HEADER + sizeof(packet_send_set_pos_cursor), buffsend, pte);
+       return;
+}
+
+static void rcv_resume_connection_with_server(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("ResumeConnectionWithServer received\n");
+       if (unistimdebug)
+               ast_verbose("Sending packet_send_query_mac_address\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_query_mac_address,
+                  sizeof(packet_send_query_mac_address));
+       send_client(SIZE_HEADER + sizeof(packet_send_query_mac_address), buffsend, pte);
+       return;
+}
+
+static int unistim_register(struct unistimsession *s)
+{
+       struct unistim_device *d;
+
+       ast_mutex_lock(&devicelock);
+       d = devices;
+       while (d) {
+               if (!strcasecmp(s->macaddr, d->id)) {
+                       /* XXX Deal with IP authentication */
+                       s->device = d;
+                       d->session = s;
+                       d->codec_number = DEFAULT_CODEC;
+                       d->pos_fav = 0;
+                       d->missed_call = 0;
+                       d->receiver_state = STATE_ONHOOK;
+                       break;
+               }
+               d = d->next;
+       }
+       ast_mutex_unlock(&devicelock);
+
+       if (!d)
+               return 0;
+
+       return 1;
+}
+
+static int alloc_sub(struct unistim_line *l, int x)
+{
+       struct unistim_subchannel *sub;
+       if (!(sub = ast_calloc(1, sizeof(*sub))))
+               return 0;
+
+       if (unistimdebug)
+               ast_verbose(VERBOSE_PREFIX_3
+                                       "Allocating UNISTIM subchannel #%d on %s@%s ptr=%p\n", x, l->name,
+                                       l->parent->name, sub);
+       sub->parent = l;
+       sub->subtype = x;
+       l->subs[x] = sub;
+       ast_mutex_init(&sub->lock);
+       return 1;
+}
+
+static int unalloc_sub(struct unistim_line *p, int x)
+{
+       if (!x) {
+               ast_log(LOG_WARNING, "Trying to unalloc the real channel %s@%s?!?\n", p->name,
+                               p->parent->name);
+               return -1;
+       }
+       if (unistimdebug)
+               ast_log(LOG_DEBUG, "Released sub %d of channel %s@%s\n", x, p->name,
+                               p->parent->name);
+       ast_mutex_destroy(&p->lock);
+       free(p->subs[x]);
+       p->subs[x] = 0;
+       return 0;
+}
+
+static void rcv_mac_addr(struct unistimsession *pte, const unsigned char *buf)
+{
+       BUFFSEND;
+       int tmp, i = 0;
+       char addrmac[19];
+       int res = 0;
+       if (unistimdebug)
+               ast_verbose("Mac Address received : ");
+       for (tmp = 15; tmp < 15 + SIZE_HEADER; tmp++) {
+               sprintf(&addrmac[i], "%.2x", (unsigned char) buf[tmp]);
+               i += 2;
+       }
+       if (unistimdebug)
+               ast_verbose("%s\n", addrmac);
+       strcpy(pte->macaddr, addrmac);
+       res = unistim_register(pte);
+       if (!res) {
+               switch (autoprovisioning) {
+               case AUTOPROVISIONING_NO:
+                       ast_log(LOG_WARNING, "No entry found for this phone : %s\n", addrmac);
+                       pte->state = STATE_AUTHDENY;
+                       break;
+               case AUTOPROVISIONING_YES:
+                       {
+                               struct unistim_device *d, *newd;
+                               struct unistim_line *newl;
+                               if (unistimdebug)
+                                       ast_verbose("New phone, autoprovisioning on\n");
+                               /* First : locate the [template] section */
+                               ast_mutex_lock(&devicelock);
+                               d = devices;
+                               while (d) {
+                                       if (!strcasecmp(d->name, "template")) {
+                                               /* Found, cloning this entry */
+                                               if (!(newd = ast_malloc(sizeof(struct unistim_device))));
+                                               return;
+
+                                               memcpy(newd, d, sizeof(struct unistim_device));
+                                               if (!(newl = ast_malloc(sizeof(struct unistim_line))));
+                                               return;
+
+                                               memcpy(newl, d->lines, sizeof(struct unistim_line));
+                                               if (!alloc_sub(newl, SUB_REAL))
+                                                       return;
+                                               /* Ok, now updating some fields */
+                                               ast_copy_string(newd->id, addrmac, sizeof(newd->id));
+                                               ast_copy_string(newd->name, addrmac, sizeof(newd->name));
+                                               if (newd->extension == EXTENSION_NONE)
+                                                       newd->extension = EXTENSION_ASK;
+                                               newd->lines = newl;
+                                               newd->receiver_state = STATE_ONHOOK;
+                                               newd->session = pte;
+                                               newd->to_delete = -1;
+                                               pte->device = newd;
+                                               newd->next = NULL;
+                                               newl->parent = newd;
+                                               strcpy(newl->name, d->lines->name);
+                                               snprintf(d->lines->name, sizeof(d->lines->name), "%d",
+                                                                atoi(d->lines->name) + 1);
+                                               snprintf(newl->fullname, sizeof(newl->fullname), "USTM/%s@%s",
+                                                                newl->name, newd->name);
+                                               /* Go to the end of the linked chain */
+                                               while (d->next) {
+                                                       d = d->next;
+                                               }
+                                               d->next = newd;
+                                               d = newd;
+                                               break;
+                                       }
+                                       d = d->next;
+                               }
+                               ast_mutex_unlock(&devicelock);
+                               if (!d) {
+                                       ast_log(LOG_WARNING, "No entry [template] found in unistim.conf\n");
+                                       pte->state = STATE_AUTHDENY;
+                               }
+                       }
+                       break;
+               case AUTOPROVISIONING_TN:
+                       pte->state = STATE_AUTHDENY;
+                       break;
+               case AUTOPROVISIONING_DB:
+                       ast_log(LOG_WARNING,
+                                       "Autoprovisioning with database is not yet functional\n");
+                       break;
+               default:
+                       ast_log(LOG_WARNING, "Internal error : unknown autoprovisioning value = %d\n",
+                                       autoprovisioning);
+               }
+       }
+       if (pte->state != STATE_AUTHDENY) {
+               if (option_verbose > 2)
+                       ast_verbose(VERBOSE_PREFIX_3 "Device '%s' successfuly registered\n",
+                                               pte->device->name);
+               switch (pte->device->extension) {
+               case EXTENSION_NONE:
+                       pte->state = STATE_MAINPAGE;
+                       break;
+               case EXTENSION_ASK:
+                       /* Checking if we already have an extension number */
+                       if (ast_strlen_zero(pte->device->extension_number))
+                               pte->state = STATE_EXTENSION;
+                       else {
+                               /* Yes, because of a phone reboot. We don't ask again for the TN */
+                               if (RegisterExtension(pte))
+                                       pte->state = STATE_EXTENSION;
+                               else
+                                       pte->state = STATE_MAINPAGE;
+                       }
+                       break;
+               case EXTENSION_LINE:
+                       ast_copy_string(pte->device->extension_number, pte->device->lines->name,
+                                                       sizeof(pte->device->extension_number));
+                       if (RegisterExtension(pte))
+                               pte->state = STATE_EXTENSION;
+                       else
+                               pte->state = STATE_MAINPAGE;
+                       break;
+               case EXTENSION_TN:
+                       /* If we are here, it's because of a phone reboot */
+                       pte->state = STATE_MAINPAGE;
+                       break;
+               default:
+                       ast_log(LOG_WARNING, "Internal error, extension value unknown : %d\n",
+                                       pte->device->extension);
+                       pte->state = STATE_AUTHDENY;
+                       break;
+               }
+       }
+       if (pte->state == STATE_EXTENSION) {
+               if (pte->device->extension != EXTENSION_TN)
+                       pte->device->extension = EXTENSION_ASK;
+               pte->device->extension_number[0] = '\0';
+       }
+       if (unistimdebug)
+               ast_verbose("\nSending S1\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_S1, sizeof(packet_send_S1));
+       send_client(SIZE_HEADER + sizeof(packet_send_S1), buffsend, pte);
+
+       if (unistimdebug)
+               ast_verbose("Sending query_basic_manager_04\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_query_basic_manager_04,
+                  sizeof(packet_send_query_basic_manager_04));
+       send_client(SIZE_HEADER + sizeof(packet_send_query_basic_manager_04), buffsend, pte);
+
+       if (unistimdebug)
+               ast_verbose("Sending query_basic_manager_10\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_query_basic_manager_10,
+                  sizeof(packet_send_query_basic_manager_10));
+       send_client(SIZE_HEADER + sizeof(packet_send_query_basic_manager_10), buffsend, pte);
+
+       send_date_time(pte);
+       return;
+}
+
+static int write_entry_history(struct unistimsession *pte, FILE * f, char c, char *line1)
+{
+       if (fwrite(&c, 1, 1, f) != 1) {
+               display_last_error("Unable to write history log header.");
+               return -1;
+       }
+       if (fwrite(line1, TEXT_LENGTH_MAX, 1, f) != 1) {
+               display_last_error("Unable to write history entry - date.");
+               return -1;
+       }
+       if (fwrite(pte->device->lst_cid, TEXT_LENGTH_MAX, 1, f) != 1) {
+               display_last_error("Unable to write history entry - callerid.");
+               return -1;
+       }
+       if (fwrite(pte->device->lst_cnm, TEXT_LENGTH_MAX, 1, f) != 1) {
+               display_last_error("Unable to write history entry - callername.");
+               return -1;
+       }
+       return 0;
+}
+
+static int write_history(struct unistimsession *pte, char way, char ismissed)
+{
+       char tmp[AST_CONFIG_MAX_PATH], tmp2[AST_CONFIG_MAX_PATH];
+       char line1[TEXT_LENGTH_MAX + 1];
+       char count = 0, *histbuf;
+       int size;
+       FILE *f, *f2;
+       struct systemtime systime;
+       systime.w_year = systime.w_month = systime.w_day_of_week = 0;
+       systime.w_day = systime.w_hour = systime.w_minute = 0;
+       systime.w_second = systime.w_milliseconds = 0;
+       if (!pte->device)
+               return -1;
+       if (!pte->device->callhistory)
+               return 0;
+       if (strchr(pte->device->name, '/') || (pte->device->name[0] == '.')) {
+               ast_log(LOG_WARNING, "Account code '%s' insecure for writing file\n",
+                               pte->device->name);
+               return -1;
+       }
+       snprintf(tmp, sizeof(tmp), "%s/%s", (char *) ast_config_AST_LOG_DIR, USTM_LOG_DIR);
+       if (mkdir(tmp, 0770)) {
+               if (errno != EEXIST) {
+                       display_last_error("Unable to create directory for history.");
+                       return -1;
+               }
+       }
+       get_localtime(&systime);
+       if (ismissed) {
+               if (way == 'i')
+                       strcpy(tmp2, "Miss");
+               else
+                       strcpy(tmp2, "Fail");
+       } else
+               strcpy(tmp2, "Answ");
+       snprintf(line1, sizeof(line1), "%04d/%02d/%02d %02d:%02d:%02d %s",
+                        systime.w_year + 1900, systime.w_month, systime.w_day, systime.w_hour,
+                        systime.w_minute, systime.w_second, tmp2);
+       snprintf(tmp, sizeof(tmp), "%s/%s/%s-%c.csv", (char *) ast_config_AST_LOG_DIR,
+                        USTM_LOG_DIR, pte->device->name, way);
+       f = fopen(tmp, "r");
+       if (f) {
+               struct stat bufstat;
+
+               if (stat(tmp, &bufstat)) {
+                       display_last_error("Unable to stat history log.");
+                       fclose(f);
+                       return -1;
+               }
+               size = 1 + (MAX_ENTRY_LOG * TEXT_LENGTH_MAX * 3);
+               if (bufstat.st_size != size) {
+                       ast_log(LOG_WARNING,
+                                       "History file %s have an incorrect size (%d instead of %d). It will be replaced by a new one.",
+                                       tmp, (int) bufstat.st_size, size);
+                       f = 0;
+                       count = 1;
+               }
+       }
+       /* If we can't open the log file, we create a brand new one */
+       if (!f) {
+               char c = 1;
+               int i;
+
+               if ((errno != ENOENT) && (count == 0)) {
+                       display_last_error("Unable to open history log.");
+                       return -1;
+               }
+               f = fopen(tmp, "w");
+               if (!f) {
+                       display_last_error("Unable to create history log.");
+                       return -1;
+               }
+               if (write_entry_history(pte, f, c, line1)) {
+                       fclose(f);
+                       return -1;
+               }
+               memset(line1, ' ', TEXT_LENGTH_MAX);
+               for (i = 3; i < MAX_ENTRY_LOG * 3; i++) {
+                       if (fwrite(line1, TEXT_LENGTH_MAX, 1, f) != 1) {
+                               display_last_error("Unable to write history entry - stuffing.");
+                               fclose(f);
+                               return -1;
+                       }
+               }
+               if (fclose(f))
+                       display_last_error("Unable to close history - creation.");
+               return 0;
+       }
+       /* We can open the log file, we create a temporary one, we add our entry and copy the rest */
+       if (fread(&count, 1, 1, f) != 1) {
+               display_last_error("Unable to read history header.");
+               fclose(f);
+               return -1;
+       }
+       if (count > MAX_ENTRY_LOG) {
+               ast_log(LOG_WARNING, "Invalid count in history header of %s (%d max %d)\n", tmp,
+                               count, MAX_ENTRY_LOG);
+               fclose(f);
+               return -1;
+       }
+       snprintf(tmp2, sizeof(tmp2), "%s/%s/%s-%c.csv.tmp", (char *) ast_config_AST_LOG_DIR,
+                        USTM_LOG_DIR, pte->device->name, way);
+       f2 = fopen(tmp2, "w");
+       if (!f2) {
+               display_last_error("Unable to create temporary history log.");
+               fclose(f);
+               return -1;
+       }
+       count++;
+       if (count > MAX_ENTRY_LOG)
+               count = MAX_ENTRY_LOG;
+       if (write_entry_history(pte, f2, count, line1)) {
+               fclose(f);
+               fclose(f2);
+               return -1;
+       }
+       size = (MAX_ENTRY_LOG - 1) * TEXT_LENGTH_MAX * 3;
+       if (!(histbuf = ast_malloc(size))) {
+               fclose(f);
+               fclose(f2);
+               return -1;
+       }
+       if (fread(histbuf, size, 1, f) != 1) {
+               free(histbuf);
+               fclose(f);
+               fclose(f2);
+               display_last_error("Unable to read previous history entries.");
+               return -1;
+       }
+       if (fwrite(histbuf, size, 1, f2) != 1) {
+               free(histbuf);
+               fclose(f);
+               fclose(f2);
+               display_last_error("Unable to write previous history entries.");
+               return -1;
+       }
+       free(histbuf);
+       if (fclose(f))
+               display_last_error("Unable to close history log.");
+       if (fclose(f2))
+               display_last_error("Unable to close temporary history log.");
+       if (unlink(tmp))
+               display_last_error("Unable to remove old history log.");
+       if (rename(tmp2, tmp))
+               display_last_error("Unable to rename new history log.");
+       return 0;
+}
+
+static void cancel_dial(struct unistimsession *pte)
+{
+       send_no_ring(pte);
+       pte->device->missed_call++;
+       write_history(pte, 'i', 1);
+       show_main_page(pte);
+       return;
+}
+
+static void swap_subs(struct unistim_line *p, int a, int b)
+{
+/*  struct ast_channel *towner; */
+       struct ast_rtp *rtp;
+       int fds;
+
+       if (unistimdebug)
+               ast_verbose("Swapping %d and %d\n", a, b);
+
+       if ((!p->subs[a]->owner) || (!p->subs[b]->owner)) {
+               ast_log(LOG_WARNING,
+                               "Attempted to swap subchannels with a null owner : sub #%d=%p sub #%d=%p\n",
+                               a, p->subs[a]->owner, b, p->subs[b]->owner);
+               return;
+       }
+       rtp = p->subs[a]->rtp;
+       p->subs[a]->rtp = p->subs[b]->rtp;
+       p->subs[b]->rtp = rtp;
+
+       fds = p->subs[a]->owner->fds[0];
+       p->subs[a]->owner->fds[0] = p->subs[b]->owner->fds[0];
+       p->subs[b]->owner->fds[0] = fds;
+
+       fds = p->subs[a]->owner->fds[1];
+       p->subs[a]->owner->fds[1] = p->subs[b]->owner->fds[1];
+       p->subs[b]->owner->fds[1] = fds;
+}
+
+static int attempt_transfer(struct unistim_subchannel *p1, struct unistim_subchannel *p2)
+{
+       int res = 0;
+       struct ast_channel
+        *chana = NULL, *chanb = NULL, *bridgea = NULL, *bridgeb = NULL, *peera =
+               NULL, *peerb = NULL, *peerc = NULL, *peerd = NULL;
+
+       if (!p1->owner || !p2->owner) {
+               ast_log(LOG_WARNING, "Transfer attempted without dual ownership?\n");
+               return -1;
+       }
+       chana = p1->owner;
+       chanb = p2->owner;
+       bridgea = ast_bridged_channel(chana);
+       bridgeb = ast_bridged_channel(chanb);
+
+       if (bridgea) {
+               peera = chana;
+               peerb = chanb;
+               peerc = bridgea;
+               peerd = bridgeb;
+       } else if (bridgeb) {
+               peera = chanb;
+               peerb = chana;
+               peerc = bridgeb;
+               peerd = bridgea;
+       }
+
+       if (peera && peerb && peerc && (peerb != peerc)) {
+               /*ast_quiet_chan(peera);
+                  ast_quiet_chan(peerb);
+                  ast_quiet_chan(peerc);
+                  ast_quiet_chan(peerd); */
+
+               if (peera->cdr && peerb->cdr) {
+                       peerb->cdr = ast_cdr_append(peerb->cdr, peera->cdr);
+               } else if (peera->cdr) {
+                       peerb->cdr = peera->cdr;
+               }
+               peera->cdr = NULL;
+
+               if (peerb->cdr && peerc->cdr) {
+                       peerb->cdr = ast_cdr_append(peerb->cdr, peerc->cdr);
+               } else if (peerc->cdr) {
+                       peerb->cdr = peerc->cdr;
+               }
+               peerc->cdr = NULL;
+
+               if (ast_channel_masquerade(peerb, peerc)) {
+                       ast_log(LOG_WARNING, "Failed to masquerade %s into %s\n", peerb->name,
+                                       peerc->name);
+                       res = -1;
+               }
+               return res;
+       } else {
+               ast_log(LOG_NOTICE,
+                               "Transfer attempted with no appropriate bridged calls to transfer\n");
+               if (chana)
+                       ast_softhangup_nolock(chana, AST_SOFTHANGUP_DEV);
+               if (chanb)
+                       ast_softhangup_nolock(chanb, AST_SOFTHANGUP_DEV);
+               return -1;
+       }
+       return 0;
+}
+
+void change_callerid(struct unistimsession *pte, int type, char *callerid)
+{
+       char *data;
+       int size;
+
+       if (type)
+               data = pte->device->lst_cnm;
+       else
+               data = pte->device->lst_cid;
+
+       memset(data, ' ', TEXT_LENGTH_MAX);
+       size = strlen(callerid);
+       if (size > TEXT_LENGTH_MAX)
+               size = TEXT_LENGTH_MAX;
+       memcpy(data, callerid, size);
+}
+
+static void close_call(struct unistimsession *pte)
+{
+       struct unistim_subchannel *sub;
+       struct unistim_line *l = pte->device->lines;
+
+       sub = pte->device->lines->subs[SUB_REAL];
+       send_stop_timer(pte);
+       if (sub->owner) {
+               sub->alreadygone = 1;
+               if (l->subs[SUB_THREEWAY]) {
+                       l->subs[SUB_THREEWAY]->alreadygone = 1;
+                       if (attempt_transfer(sub, l->subs[SUB_THREEWAY]) < 0)
+                               ast_verbose("attempt_transfer failed.\n");
+               } else
+                       ast_queue_hangup(sub->owner);
+       } else {
+               if (l->subs[SUB_THREEWAY]) {
+                       if (l->subs[SUB_THREEWAY]->owner)
+                               ast_queue_hangup(l->subs[SUB_THREEWAY]->owner);
+                       else
+                               ast_log(LOG_WARNING, "threeway sub without owner\n");
+               } else
+                       ast_verbose("USTM(%s@%s-%d) channel already destroyed\n", sub->parent->name,
+                                               sub->parent->parent->name, sub->subtype);
+       }
+       change_callerid(pte, 0, pte->device->redial_number);
+       change_callerid(pte, 1, "");
+       write_history(pte, 'o', pte->device->missed_call);
+       pte->device->missed_call = 0;
+       show_main_page(pte);
+       return;
+}
+
+static void IgnoreCall(struct unistimsession *pte)
+{
+       send_no_ring(pte);
+       return;
+}
+
+static void *unistim_ss(void *data)
+{
+       struct ast_channel *chan = data;
+       struct unistim_subchannel *sub = chan->tech_pvt;
+       struct unistim_line *l = sub->parent;
+       struct unistimsession *s = l->parent->session;
+       int res;
+
+       if (option_verbose > 2)
+               ast_verbose(VERBOSE_PREFIX_3 "Starting switch on '%s@%s-%d' to %s\n",
+                                       l->name, l->parent->name, sub->subtype, s->device->phone_number);
+       ast_copy_string(chan->exten, s->device->phone_number, sizeof(chan->exten));
+       ast_copy_string(s->device->redial_number, s->device->phone_number,
+                                       sizeof(s->device->redial_number));
+       ast_setstate(chan, AST_STATE_RING);
+       res = ast_pbx_run(chan);
+       if (res) {
+               ast_log(LOG_WARNING, "PBX exited non-zero\n");
+               send_tone(s, 1000, 0);;
+       }
+       return NULL;
+}
+
+static void start_rtp(struct unistim_subchannel *sub)
+{
+       BUFFSEND;
+       struct sockaddr_in us;
+       struct sockaddr_in public;
+       struct sockaddr_in sin;
+       int codec;
+       struct sockaddr_in sout;
+
+       /* Sanity checks */
+       if (!sub) {
+               ast_log(LOG_WARNING, "start_rtp with a null subchannel !\n");
+               return;
+       }
+       if (!sub->parent) {
+               ast_log(LOG_WARNING, "start_rtp with a null line !\n");
+               return;
+       }
+       if (!sub->parent->parent) {
+               ast_log(LOG_WARNING, "start_rtp with a null device !\n");
+               return;
+       }
+       if (!sub->parent->parent->session) {
+               ast_log(LOG_WARNING, "start_rtp with a null session !\n");
+               return;
+       }
+       sout = sub->parent->parent->session->sout;
+
+       ast_mutex_lock(&sub->lock);
+       /* Allocate the RTP */
+       if (unistimdebug)
+               ast_verbose("Starting RTP. Bind on %s\n", ast_inet_ntoa(sout.sin_addr));
+       sub->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, sout.sin_addr);
+       if (!sub->rtp) {
+               ast_log(LOG_WARNING, "Unable to create RTP session: %s binaddr=%s\n",
+                               strerror(errno), ast_inet_ntoa(sout.sin_addr));
+               ast_mutex_unlock(&sub->lock);
+               return;
+       }
+       if (sub->rtp && sub->owner) {
+               sub->owner->fds[0] = ast_rtp_fd(sub->rtp);
+               sub->owner->fds[1] = ast_rtcp_fd(sub->rtp);
+       }
+       if (sub->rtp)
+               ast_rtp_setnat(sub->rtp, sub->parent->parent->nat);
+
+       /* Create the RTP connection */
+       ast_rtp_get_us(sub->rtp, &us);
+       sin.sin_family = AF_INET;
+       /* Setting up RTP for our side */
+       memcpy(&sin.sin_addr, &sub->parent->parent->session->sin.sin_addr,
+                  sizeof(sin.sin_addr));
+       sin.sin_port = htons(sub->parent->parent->rtp_port);
+       ast_rtp_set_peer(sub->rtp, &sin);
+       if (!(sub->owner->nativeformats & sub->owner->readformat)) {
+               int fmt;
+               fmt = ast_best_codec(sub->owner->nativeformats);
+               ast_log(LOG_WARNING,
+                               "Our read/writeformat has been changed to something incompatible : %s (%d), using %s (%d) best codec from %d\n",
+                               ast_getformatname(sub->owner->readformat),
+                               sub->owner->readformat, ast_getformatname(fmt), fmt,
+                               sub->owner->nativeformats);
+               sub->owner->readformat = fmt;
+               sub->owner->writeformat = fmt;
+       }
+       codec = ast_rtp_lookup_code(sub->rtp, 1, sub->owner->readformat);
+       /* Setting up RTP of the phone */
+       if (public_ip.sin_family == 0)  /* NAT IP override ?   */
+               memcpy(&public, &us, sizeof(public));   /* No defined, using IP from recvmsg  */
+       else
+               memcpy(&public, &public_ip, sizeof(public));    /* override  */
+       if (unistimdebug) {
+               ast_verbose
+                       ("RTP started : Our IP/port is : %s:%hd with codec %s (%d)\n",
+                        ast_inet_ntoa(us.sin_addr),
+                        htons(us.sin_port), ast_getformatname(sub->owner->readformat),
+                        sub->owner->readformat);
+               ast_verbose("Starting phone RTP stack. Our public IP is %s\n",
+                                       ast_inet_ntoa(public.sin_addr));
+       }
+       if ((sub->owner->readformat == AST_FORMAT_ULAW) ||
+               (sub->owner->readformat == AST_FORMAT_ALAW)) {
+               if (unistimdebug)
+                       ast_verbose("Sending packet_send_rtp_packet_size for codec %d\n", codec);
+               memcpy(buffsend + SIZE_HEADER, packet_send_rtp_packet_size,
+                          sizeof(packet_send_rtp_packet_size));
+               buffsend[10] = codec;
+               send_client(SIZE_HEADER + sizeof(packet_send_rtp_packet_size), buffsend,
+                                  sub->parent->parent->session);
+       }
+       if (unistimdebug)
+               ast_verbose("Sending Jitter Buffer Parameters Configuration\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_jitter_buffer_conf,
+                  sizeof(packet_send_jitter_buffer_conf));
+       send_client(SIZE_HEADER + sizeof(packet_send_jitter_buffer_conf), buffsend,
+                          sub->parent->parent->session);
+       if (sub->parent->parent->rtp_method != 0) {
+               uint16_t rtcpsin_port = htons(us.sin_port) + 1; /* RTCP port is RTP + 1 */
+
+               if (unistimdebug)
+                       ast_verbose("Sending OpenAudioStreamTX using method #%d\n",
+                                               sub->parent->parent->rtp_method);
+               if (sub->parent->parent->rtp_method == 3)
+                       memcpy(buffsend + SIZE_HEADER, packet_send_open_audio_stream_tx3,
+                                  sizeof(packet_send_open_audio_stream_tx3));
+               else
+                       memcpy(buffsend + SIZE_HEADER, packet_send_open_audio_stream_tx,
+                                  sizeof(packet_send_open_audio_stream_tx));
+               if (sub->parent->parent->rtp_method != 2) {
+                       memcpy(buffsend + 28, &public.sin_addr, sizeof(public.sin_addr));
+                       buffsend[20] = (htons(sin.sin_port) & 0xff00) >> 8;
+                       buffsend[21] = (htons(sin.sin_port) & 0x00ff);
+                       buffsend[23] = (rtcpsin_port & 0x00ff);
+                       buffsend[22] = (rtcpsin_port & 0xff00) >> 8;
+                       buffsend[25] = (us.sin_port & 0xff00) >> 8;
+                       buffsend[24] = (us.sin_port & 0x00ff);
+                       buffsend[27] = (rtcpsin_port & 0x00ff);
+                       buffsend[26] = (rtcpsin_port & 0xff00) >> 8;
+               } else {
+                       memcpy(buffsend + 23, &public.sin_addr, sizeof(public.sin_addr));
+                       buffsend[15] = (htons(sin.sin_port) & 0xff00) >> 8;
+                       buffsend[16] = (htons(sin.sin_port) & 0x00ff);
+                       buffsend[20] = (us.sin_port & 0xff00) >> 8;
+                       buffsend[19] = (us.sin_port & 0x00ff);
+                       buffsend[11] = codec;
+               }
+               buffsend[12] = codec;
+               send_client(SIZE_HEADER + sizeof(packet_send_open_audio_stream_tx), buffsend,
+                                  sub->parent->parent->session);
+
+               if (unistimdebug)
+                       ast_verbose("Sending OpenAudioStreamRX\n");
+               if (sub->parent->parent->rtp_method == 3)
+                       memcpy(buffsend + SIZE_HEADER, packet_send_open_audio_stream_rx3,
+                                  sizeof(packet_send_open_audio_stream_rx3));
+               else
+                       memcpy(buffsend + SIZE_HEADER, packet_send_open_audio_stream_rx,
+                                  sizeof(packet_send_open_audio_stream_rx));
+               if (sub->parent->parent->rtp_method != 2) {
+                       memcpy(buffsend + 28, &public.sin_addr, sizeof(public.sin_addr));
+                       buffsend[20] = (htons(sin.sin_port) & 0xff00) >> 8;
+                       buffsend[21] = (htons(sin.sin_port) & 0x00ff);
+                       buffsend[23] = (rtcpsin_port & 0x00ff);
+                       buffsend[22] = (rtcpsin_port & 0xff00) >> 8;
+                       buffsend[25] = (us.sin_port & 0xff00) >> 8;
+                       buffsend[24] = (us.sin_port & 0x00ff);
+                       buffsend[27] = (rtcpsin_port & 0x00ff);
+                       buffsend[26] = (rtcpsin_port & 0xff00) >> 8;
+               } else {
+                       memcpy(buffsend + 23, &public.sin_addr, sizeof(public.sin_addr));
+                       buffsend[15] = (htons(sin.sin_port) & 0xff00) >> 8;
+                       buffsend[16] = (htons(sin.sin_port) & 0x00ff);
+                       buffsend[20] = (us.sin_port & 0xff00) >> 8;
+                       buffsend[19] = (us.sin_port & 0x00ff);
+                       buffsend[12] = codec;
+               }
+               buffsend[11] = codec;
+               send_client(SIZE_HEADER + sizeof(packet_send_open_audio_stream_rx), buffsend,
+                                  sub->parent->parent->session);
+       } else {
+               uint16_t rtcpsin_port = htons(us.sin_port) + 1; /* RTCP port is RTP + 1 */
+
+               if (unistimdebug)
+                       ast_verbose("Sending packet_send_call default method\n");
+
+               memcpy(buffsend + SIZE_HEADER, packet_send_call, sizeof(packet_send_call));
+               memcpy(buffsend + 53, &public.sin_addr, sizeof(public.sin_addr));
+               /* Destination port when sending RTP */
+               buffsend[49] = (us.sin_port & 0x00ff);
+               buffsend[50] = (us.sin_port & 0xff00) >> 8;
+               /* Destination port when sending RTCP */
+               buffsend[52] = (rtcpsin_port & 0x00ff);
+               buffsend[51] = (rtcpsin_port & 0xff00) >> 8;
+               /* Codec */
+               buffsend[40] = codec;
+               buffsend[41] = codec;
+               if (sub->owner->readformat == AST_FORMAT_ULAW)
+                       buffsend[42] = 1;       /* 1 = 20ms (160 bytes), 2 = 40ms (320 bytes) */
+               else if (sub->owner->readformat == AST_FORMAT_ALAW)
+                       buffsend[42] = 1;       /* 1 = 20ms (160 bytes), 2 = 40ms (320 bytes) */
+               else if (sub->owner->readformat == AST_FORMAT_G723_1)
+                       buffsend[42] = 2;       /* 1 = 30ms (24 bytes), 2 = 60 ms (48 bytes) */
+               else if (sub->owner->readformat == AST_FORMAT_G729A)
+                       buffsend[42] = 2;       /* 1 = 10ms (10 bytes), 2 = 20ms (20 bytes) */
+               else
+                       ast_log(LOG_WARNING, "Unsupported codec %s (%d) !\n",
+                                       ast_getformatname(sub->owner->readformat), sub->owner->readformat);
+               /* Source port for transmit RTP and Destination port for receiving RTP */
+               buffsend[45] = (htons(sin.sin_port) & 0xff00) >> 8;
+               buffsend[46] = (htons(sin.sin_port) & 0x00ff);
+               buffsend[47] = (rtcpsin_port & 0xff00) >> 8;
+               buffsend[48] = (rtcpsin_port & 0x00ff);
+               send_client(SIZE_HEADER + sizeof(packet_send_call), buffsend,
+                                  sub->parent->parent->session);
+       }
+       ast_mutex_unlock(&sub->lock);
+}
+
+static void SendDialTone(struct unistimsession *pte)
+{
+       int i;
+       /* No country defined ? Using US tone */
+       if (ast_strlen_zero(pte->device->country)) {
+               if (unistimdebug)
+                       ast_verbose("No country defined, using US tone\n");
+               send_tone(pte, 350, 440);
+               return;
+       }
+       if (strlen(pte->device->country) != 2) {
+               if (unistimdebug)
+                       ast_verbose("Country code != 2 char, using US tone\n");
+               send_tone(pte, 350, 440);
+               return;
+       }
+       i = 0;
+       while (frequency[i].freq1) {
+               if ((frequency[i].country[0] == pte->device->country[0]) &&
+                       (frequency[i].country[1] == pte->device->country[1])) {
+                       if (unistimdebug)
+                               ast_verbose("Country code found (%s), freq1=%d freq2=%d\n",
+                                                       frequency[i].country, frequency[i].freq1, frequency[i].freq2);
+                       send_tone(pte, frequency[i].freq1, frequency[i].freq2);
+               }
+               i++;
+       }
+}
+
+static void handle_dial_page(struct unistimsession *pte)
+{
+       pte->state = STATE_DIALPAGE;
+       if (pte->device->call_forward[0] == -1) {
+               send_text(TEXT_LINE0, TEXT_NORMAL, pte, "");
+               send_text(TEXT_LINE1, TEXT_NORMAL, pte, "Enter forward");
+               send_text_status(pte, "ForwardCancel BackSpcErase");
+               if (pte->device->call_forward[1] != 0) {
+                       char tmp[TEXT_LENGTH_MAX + 1];
+
+                       ast_copy_string(pte->device->phone_number, pte->device->call_forward + 1,
+                                                       sizeof(pte->device->phone_number));
+                       pte->device->size_phone_number = strlen(pte->device->phone_number);
+                       if (pte->device->size_phone_number > 15)
+                               pte->device->size_phone_number = 15;
+                       strcpy(tmp, "Number : ...............");
+                       memcpy(tmp + 9, pte->device->phone_number, pte->device->size_phone_number);
+                       send_text(TEXT_LINE2, TEXT_NORMAL, pte, tmp);
+                       send_blink_cursor(pte);
+                       send_cursor_pos(pte,
+                                                 (unsigned char) (TEXT_LINE2 + 0x09 +
+                                                                                  pte->device->size_phone_number));
+                       send_led_update(pte, 0);
+                       return;
+               }
+       } else {
+               if ((pte->device->output == OUTPUT_HANDSET) &&
+                       (pte->device->receiver_state == STATE_ONHOOK))
+                       send_select_output(pte, OUTPUT_SPEAKER, pte->device->volume, MUTE_OFF);
+               else
+                       send_select_output(pte, pte->device->output, pte->device->volume, MUTE_OFF);
+               SendDialTone(pte);
+               send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Enter the number to dial");
+               send_text(TEXT_LINE1, TEXT_NORMAL, pte, "and press Call");
+               send_text_status(pte, "Call   Redial BackSpcErase");
+       }
+       send_text(TEXT_LINE2, TEXT_NORMAL, pte, "Number : ...............");
+       send_blink_cursor(pte);
+       send_cursor_pos(pte, TEXT_LINE2 + 0x09);
+       pte->device->size_phone_number = 0;
+       pte->device->phone_number[0] = 0;
+       change_favorite_icon(pte, FAV_ICON_PHONE_BLACK);
+       Sendicon(TEXT_LINE0, FAV_ICON_NONE, pte);
+       pte->device->missed_call = 0;
+       send_led_update(pte, 0);
+       return;
+}
+
+/* Step 1 : Music On Hold for peer, Dialing screen for us */
+static void TransferCallStep1(struct unistimsession *pte)
+{
+       struct unistim_subchannel *sub;
+       struct unistim_line *p = pte->device->lines;
+
+       sub = p->subs[SUB_REAL];
+
+       if (!sub->owner) {
+               ast_log(LOG_WARNING, "Unable to find subchannel for music on hold\n");
+               return;
+       }
+       if (p->subs[SUB_THREEWAY]) {
+               if (unistimdebug)
+                       ast_verbose("Transfer canceled, hangup our threeway channel\n");
+               if (p->subs[SUB_THREEWAY]->owner)
+                       ast_queue_hangup(p->subs[SUB_THREEWAY]->owner);
+               else
+                       ast_log(LOG_WARNING, "Canceling a threeway channel without owner\n");
+               return;
+       }
+       /* Start music on hold if appropriate */
+       if (pte->device->moh)
+               ast_log(LOG_WARNING, "Transfer with peer already listening music on hold\n");
+       else {
+               if (ast_bridged_channel(p->subs[SUB_REAL]->owner)) {
+                       ast_moh_start(ast_bridged_channel(p->subs[SUB_REAL]->owner),
+                                                 pte->device->lines->musicclass, NULL);
+                       pte->device->moh = 1;
+               } else {
+                       ast_log(LOG_WARNING, "Unable to find peer subchannel for music on hold\n");
+                       return;
+               }
+       }
+       /* Silence our channel */
+       if (!pte->device->silence_generator) {
+               pte->device->silence_generator =
+                       ast_channel_start_silence_generator(p->subs[SUB_REAL]->owner);
+               if (pte->device->silence_generator == NULL)
+                       ast_log(LOG_WARNING, "Unable to start a silence generator.\n");
+               else if (unistimdebug)
+                       ast_verbose("Starting silence generator\n");
+       }
+       handle_dial_page(pte);
+}
+
+/* From phone to PBX */
+static void HandleCallOutgoing(struct unistimsession *s)
+{
+       struct ast_channel *c;
+       struct unistim_subchannel *sub;
+       pthread_t t;
+       s->state = STATE_CALL;
+       sub = s->device->lines->subs[SUB_REAL];
+       if (!sub) {
+               ast_log(LOG_NOTICE, "No available lines on: %s\n", s->device->name);
+               return;
+       }
+       if (!sub->owner) {                    /* A call is already in progress ? */
+               c = unistim_new(sub, AST_STATE_DOWN);   /* No, starting a new one */
+               if (c) {
+                       /* Need to start RTP before calling ast_pbx_run */
+                       if (!sub->rtp)
+                               start_rtp(sub);
+                       send_select_output(s, s->device->output, s->device->volume, MUTE_OFF);
+                       send_text(TEXT_LINE0, TEXT_NORMAL, s, "Calling :");
+                       send_text(TEXT_LINE1, TEXT_NORMAL, s, s->device->phone_number);
+                       send_text(TEXT_LINE2, TEXT_NORMAL, s, "Dialing...");
+                       send_text_status(s, "Hangup");
+                       /* start switch */
+                       if (ast_pthread_create(&t, NULL, unistim_ss, c)) {
+                               display_last_error("Unable to create switch thread");
+                               ast_queue_hangup(c);
+                       }
+               } else
+                       ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n",
+                                       sub->parent->name, s->device->name);
+       } else {                                        /* We already have a call, so we switch in a threeway call */
+
+               if (s->device->moh) {
+                       struct unistim_subchannel *sub;
+                       struct unistim_line *p = s->device->lines;
+                       sub = p->subs[SUB_REAL];
+
+                       if (!sub->owner) {
+                               ast_log(LOG_WARNING, "Unable to find subchannel for music on hold\n");
+                               return;
+                       }
+                       if (p->subs[SUB_THREEWAY]) {
+                               ast_log(LOG_WARNING,
+                                               "Can't transfer while an another transfer is taking place\n");
+                               return;
+                       }
+                       if (!alloc_sub(p, SUB_THREEWAY)) {
+                               ast_log(LOG_WARNING, "Unable to allocate three-way subchannel\n");
+                               return;
+                       }
+                       /* Stop the silence generator */
+                       if (s->device->silence_generator) {
+                               if (unistimdebug)
+                                       ast_verbose("Stopping silence generator\n");
+                               ast_channel_stop_silence_generator(sub->owner,
+                                                                                                  s->device->silence_generator);
+                               s->device->silence_generator = NULL;
+                       }
+                       send_tone(s, 0, 0);
+                       /* Make new channel */
+                       c = unistim_new(p->subs[SUB_THREEWAY], AST_STATE_DOWN);
+                       if (!c) {
+                               ast_log(LOG_WARNING, "Cannot allocate new structure on channel %p\n", p);
+                               return;
+                       }
+                       /* Swap things around between the three-way and real call */
+                       swap_subs(p, SUB_THREEWAY, SUB_REAL);
+                       send_select_output(s, s->device->output, s->device->volume, MUTE_OFF);
+                       send_text(TEXT_LINE0, TEXT_NORMAL, s, "Calling (pre-transfer)");
+                       send_text(TEXT_LINE1, TEXT_NORMAL, s, s->device->phone_number);
+                       send_text(TEXT_LINE2, TEXT_NORMAL, s, "Dialing...");
+                       send_text_status(s, "TransfrCancel");
+
+                       if (ast_pthread_create(&t, NULL, unistim_ss, p->subs[SUB_THREEWAY]->owner)) {
+                               ast_log(LOG_WARNING, "Unable to start simple switch on channel %p\n", p);
+                               ast_hangup(c);
+                               return;
+                       }
+                       if (unistimdebug)
+                               ast_verbose
+                                       ("Started three way call on channel %p (%s) subchan %d\n",
+                                        p->subs[SUB_THREEWAY]->owner, p->subs[SUB_THREEWAY]->owner->name,
+                                        p->subs[SUB_THREEWAY]->subtype);
+               } else
+                       ast_log(LOG_DEBUG, "Current sub [%s] already has owner\n", sub->owner->name);
+       }
+       return;
+}
+
+/* From PBX to phone */
+static void HandleCallIncoming(struct unistimsession *s)
+{
+       struct unistim_subchannel *sub;
+       s->state = STATE_CALL;
+       s->device->missed_call = 0;
+       send_no_ring(s);
+       sub = s->device->lines->subs[SUB_REAL];
+       if (!sub) {
+               ast_log(LOG_NOTICE, "No available lines on: %s\n", s->device->name);
+               return;
+       } else if (unistimdebug)
+               ast_verbose("Handle Call Incoming for %s@%s\n", sub->parent->name,
+                                       s->device->name);
+       start_rtp(sub);
+       if (!sub->rtp)
+               ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", sub->parent->name,
+                               s->device->name);
+       ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
+       send_text(TEXT_LINE2, TEXT_NORMAL, s, "is on-line");
+       send_text_status(s, "Hangup Transf");
+       send_start_timer(s);
+
+       if ((s->device->output == OUTPUT_HANDSET) &&
+               (s->device->receiver_state == STATE_ONHOOK))
+               send_select_output(s, OUTPUT_SPEAKER, s->device->volume, MUTE_OFF);
+       else
+               send_select_output(s, s->device->output, s->device->volume, MUTE_OFF);
+       s->device->start_call_timestamp = time(0);
+       write_history(s, 'i', 0);
+       return;
+}
+
+static int unistim_do_senddigit(struct unistimsession *pte, char digit)
+{
+
+       struct ast_frame f = { 0, };
+       struct unistim_subchannel *sub;
+       sub = pte->device->lines->subs[SUB_REAL];
+       if (!sub->owner) {
+               ast_log(LOG_WARNING, "Unable to find subchannel in dtmf senddigit\n");
+               return -1;
+       }
+       if (unistimdebug)
+               ast_verbose("Send Digit %c\n", digit);
+       switch (digit) {
+       case '0':
+               send_tone(pte, 941, 1336);
+               break;
+       case '1':
+               send_tone(pte, 697, 1209);
+               break;
+       case '2':
+               send_tone(pte, 697, 1336);
+               break;
+       case '3':
+               send_tone(pte, 697, 1477);
+               break;
+       case '4':
+               send_tone(pte, 770, 1209);
+               break;
+       case '5':
+               send_tone(pte, 770, 1336);
+               break;
+       case '6':
+               send_tone(pte, 770, 1477);
+               break;
+       case '7':
+               send_tone(pte, 852, 1209);
+               break;
+       case '8':
+               send_tone(pte, 852, 1336);
+               break;
+       case '9':
+               send_tone(pte, 852, 1477);
+               break;
+       case 'A':
+               send_tone(pte, 697, 1633);
+               break;
+       case 'B':
+               send_tone(pte, 770, 1633);
+               break;
+       case 'C':
+               send_tone(pte, 852, 1633);
+               break;
+       case 'D':
+               send_tone(pte, 941, 1633);
+               break;
+       case '*':
+               send_tone(pte, 941, 1209);
+               break;
+       case '#':
+               send_tone(pte, 941, 1477);
+               break;
+       default:
+               send_tone(pte, 500, 2000);
+       }
+       usleep(150000);                  /* XXX Less than perfect, blocking an important thread is not a good idea */
+       send_tone(pte, 0, 0);
+       f.frametype = AST_FRAME_DTMF;
+       f.subclass = digit;
+       f.src = "unistim";
+       ast_queue_frame(sub->owner, &f);
+       return 0;
+}
+
+static void key_call(struct unistimsession *pte, char keycode)
+{
+       if ((keycode >= KEY_0) && (keycode <= KEY_SHARP)) {
+               if (keycode == KEY_SHARP)
+                       keycode = '#';
+               else if (keycode == KEY_STAR)
+                       keycode = '*';
+               else
+                       keycode -= 0x10;
+               unistim_do_senddigit(pte, keycode);
+               return;
+       }
+       switch (keycode) {
+       case KEY_HANGUP:
+       case KEY_FUNC1:
+               close_call(pte);
+               break;
+       case KEY_FUNC2:
+               TransferCallStep1(pte);
+               break;
+       case KEY_HEADPHN:
+               if (pte->device->output == OUTPUT_HEADPHONE)
+                       send_select_output(pte, OUTPUT_HANDSET, pte->device->volume, MUTE_OFF);
+               else
+                       send_select_output(pte, OUTPUT_HEADPHONE, pte->device->volume, MUTE_OFF);
+               break;
+       case KEY_LOUDSPK:
+               if (pte->device->output != OUTPUT_SPEAKER)
+                       send_select_output(pte, OUTPUT_SPEAKER, pte->device->volume, MUTE_OFF);
+               else
+                       send_select_output(pte, pte->device->previous_output, pte->device->volume,
+                                                        MUTE_OFF);
+               break;
+       case KEY_MUTE:
+               if (!pte->device->moh) {
+                       if (pte->device->mute == MUTE_ON)
+                               send_select_output(pte, pte->device->output, pte->device->volume, MUTE_OFF);
+                       else
+                               send_select_output(pte, pte->device->output, pte->device->volume, MUTE_ON);
+                       break;
+               }
+       case KEY_ONHOLD:
+               {
+                       struct unistim_subchannel *sub;
+                       struct ast_channel *bridgepeer = NULL;
+                       sub = pte->device->lines->subs[SUB_REAL];
+                       if (!sub->owner) {
+                               ast_log(LOG_WARNING, "Unable to find subchannel for music on hold\n");
+                               return;
+                       }
+                       if ((bridgepeer = ast_bridged_channel(sub->owner))) {
+                               if (pte->device->moh) {
+                                       ast_moh_stop(bridgepeer);
+                                       pte->device->moh = 0;
+                                       send_select_output(pte, pte->device->output, pte->device->volume,
+                                                                        MUTE_OFF);
+                               } else {
+                                       ast_moh_start(bridgepeer, pte->device->lines->musicclass, NULL);
+                                       pte->device->moh = 1;
+                                       send_select_output(pte, pte->device->output, pte->device->volume,
+                                                                        MUTE_ON);
+                               }
+                       } else
+                               ast_log(LOG_WARNING,
+                                               "Unable to find peer subchannel for music on hold\n");
+                       break;
+               }
+       }
+       return;
+}
+
+static void key_ringing(struct unistimsession *pte, char keycode)
+{
+       if (keycode == KEY_FAV0 + pte->device->softkeylinepos) {
+               HandleCallIncoming(pte);
+               return;
+       }
+       switch (keycode) {
+       case KEY_HANGUP:
+       case KEY_FUNC4:
+               IgnoreCall(pte);
+               break;
+       case KEY_FUNC1:
+               HandleCallIncoming(pte);
+               break;
+       }
+       return;
+}
+
+static void Keyfavorite(struct unistimsession *pte, char keycode)
+{
+       int fav;
+
+       if ((keycode < KEY_FAV1) && (keycode > KEY_FAV5)) {
+               ast_log(LOG_WARNING, "It's not a favorite key\n");
+               return;
+       }
+       if (keycode == KEY_FAV0)
+               return;
+       fav = keycode - KEY_FAV0;
+       if (pte->device->softkeyicon[fav] == 0)
+               return;
+       ast_copy_string(pte->device->phone_number, pte->device->softkeynumber[fav],
+                                       sizeof(pte->device->phone_number));
+       HandleCallOutgoing(pte);
+       return;
+}
+
+static void key_dial_page(struct unistimsession *pte, char keycode)
+{
+       if (keycode == KEY_FUNC3) {
+               if (pte->device->size_phone_number <= 1)
+                       keycode = KEY_FUNC4;
+               else {
+                       pte->device->size_phone_number -= 2;
+                       keycode = pte->device->phone_number[pte->device->size_phone_number] + 0x10;
+               }
+       }
+       if ((keycode >= KEY_0) && (keycode <= KEY_SHARP)) {
+               char tmpbuf[] = "Number : ...............";
+               int i = 0;
+
+               if (pte->device->size_phone_number >= 15)
+                       return;
+               if (pte->device->size_phone_number == 0)
+                       send_tone(pte, 0, 0);
+               while (i < pte->device->size_phone_number) {
+                       tmpbuf[i + 9] = pte->device->phone_number[i];
+                       i++;
+               }
+               if (keycode == KEY_SHARP)
+                       keycode = '#';
+               else if (keycode == KEY_STAR)
+                       keycode = '*';
+               else
+                       keycode -= 0x10;
+               tmpbuf[i + 9] = keycode;
+               pte->device->phone_number[i] = keycode;
+               pte->device->size_phone_number++;
+               pte->device->phone_number[i + 1] = 0;
+               send_text(TEXT_LINE2, TEXT_NORMAL, pte, tmpbuf);
+               send_blink_cursor(pte);
+               send_cursor_pos(pte, (unsigned char) (TEXT_LINE2 + 0x0a + i));
+               return;
+       }
+       if (keycode == KEY_FUNC4) {
+
+               pte->device->size_phone_number = 0;
+               send_text(TEXT_LINE2, TEXT_NORMAL, pte, "Number : ...............");
+               send_blink_cursor(pte);
+               send_cursor_pos(pte, TEXT_LINE2 + 0x09);
+               return;
+       }
+
+       if (pte->device->call_forward[0] == -1) {
+               if (keycode == KEY_FUNC1) {
+                       ast_copy_string(pte->device->call_forward, pte->device->phone_number,
+                                                       sizeof(pte->device->call_forward));
+                       show_main_page(pte);
+               } else if ((keycode == KEY_FUNC2) || (keycode == KEY_HANGUP)) {
+                       pte->device->call_forward[0] = '\0';
+                       show_main_page(pte);
+               }
+               return;
+       }
+       switch (keycode) {
+       case KEY_FUNC2:
+               if (ast_strlen_zero(pte->device->redial_number))
+                       break;
+               ast_copy_string(pte->device->phone_number, pte->device->redial_number,
+                                               sizeof(pte->device->phone_number));
+       case KEY_FUNC1:
+               HandleCallOutgoing(pte);
+               break;
+       case KEY_HANGUP:
+               if (pte->device->lines->subs[SUB_REAL]->owner) {
+                       /* Stop the silence generator */
+                       if (pte->device->silence_generator) {
+                               if (unistimdebug)
+                                       ast_verbose("Stopping silence generator\n");
+                               ast_channel_stop_silence_generator(pte->device->lines->subs[SUB_REAL]->
+                                                                                                  owner, pte->device->silence_generator);
+                               pte->device->silence_generator = NULL;
+                       }
+                       send_tone(pte, 0, 0);
+                       ast_moh_stop(ast_bridged_channel(pte->device->lines->subs[SUB_REAL]->owner));
+                       pte->device->moh = 0;
+                       pte->state = STATE_CALL;
+                       send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Dialing canceled,");
+                       send_text(TEXT_LINE1, TEXT_NORMAL, pte, "switching back to");
+                       send_text(TEXT_LINE2, TEXT_NORMAL, pte, "previous call.");
+                       send_text_status(pte, "Hangup Transf");
+               } else
+                       show_main_page(pte);
+               break;
+       case KEY_FAV1:
+       case KEY_FAV2:
+       case KEY_FAV3:
+       case KEY_FAV4:
+       case KEY_FAV5:
+               Keyfavorite(pte, keycode);
+               break;
+       case KEY_LOUDSPK:
+               if (pte->device->output == OUTPUT_SPEAKER) {
+                       if (pte->device->receiver_state == STATE_OFFHOOK)
+                               send_select_output(pte, pte->device->previous_output, pte->device->volume,
+                                                                MUTE_OFF);
+                       else
+                               show_main_page(pte);
+               } else
+                       send_select_output(pte, OUTPUT_SPEAKER, pte->device->volume, MUTE_OFF);
+               break;
+       case KEY_HEADPHN:
+               if (pte->device->output == OUTPUT_HEADPHONE) {
+                       if (pte->device->receiver_state == STATE_OFFHOOK)
+                               send_select_output(pte, OUTPUT_HANDSET, pte->device->volume, MUTE_OFF);
+                       else
+                               show_main_page(pte);
+               } else
+                       send_select_output(pte, OUTPUT_HEADPHONE, pte->device->volume, MUTE_OFF);
+               break;
+       }
+       return;
+}
+
+#define SELECTCODEC_START_ENTRY_POS 15
+#define SELECTCODEC_MAX_LENGTH 2
+#define SELECTCODEC_MSG "Codec number : .."
+static void HandleSelectCodec(struct unistimsession *pte)
+{
+       char buf[30], buf2[5];
+
+       pte->state = STATE_SELECTCODEC;
+       strcpy(buf, "Using codec ");
+       sprintf(buf2, "%d", pte->device->codec_number);
+       strcat(buf, buf2);
+       strcat(buf, " (G711u=0,");
+
+       send_text(TEXT_LINE0, TEXT_NORMAL, pte, buf);
+       send_text(TEXT_LINE1, TEXT_NORMAL, pte, "G723=4,G711a=8,G729A=18)");
+       send_text(TEXT_LINE2, TEXT_INVERSE, pte, SELECTCODEC_MSG);
+       send_blink_cursor(pte);
+       send_cursor_pos(pte, TEXT_LINE2 + SELECTCODEC_START_ENTRY_POS);
+       pte->size_buff_entry = 0;
+       send_text_status(pte, "Select BackSpcErase  Cancel");
+       return;
+}
+
+static void key_select_codec(struct unistimsession *pte, char keycode)
+{
+       if (keycode == KEY_FUNC2) {
+               if (pte->size_buff_entry <= 1)
+                       keycode = KEY_FUNC3;
+               else {
+                       pte->size_buff_entry -= 2;
+                       keycode = pte->buff_entry[pte->size_buff_entry] + 0x10;
+               }
+       }
+       if ((keycode >= KEY_0) && (keycode <= KEY_9)) {
+               char tmpbuf[] = SELECTCODEC_MSG;
+               int i = 0;
+
+               if (pte->size_buff_entry >= SELECTCODEC_MAX_LENGTH)
+                       return;
+
+               while (i < pte->size_buff_entry) {
+                       tmpbuf[i + SELECTCODEC_START_ENTRY_POS] = pte->buff_entry[i];
+                       i++;
+               }
+               tmpbuf[i + SELECTCODEC_START_ENTRY_POS] = keycode - 0x10;
+               pte->buff_entry[i] = keycode - 0x10;
+               pte->size_buff_entry++;
+               send_text(TEXT_LINE2, TEXT_INVERSE, pte, tmpbuf);
+               send_blink_cursor(pte);
+               send_cursor_pos(pte,
+                                         (unsigned char) (TEXT_LINE2 + SELECTCODEC_START_ENTRY_POS + 1 + i));
+               return;
+       }
+
+       switch (keycode) {
+       case KEY_FUNC1:
+               if (pte->size_buff_entry == 1)
+                       pte->device->codec_number = pte->buff_entry[0] - 48;
+               else if (pte->size_buff_entry == 2)
+                       pte->device->codec_number =
+                               ((pte->buff_entry[0] - 48) * 10) + (pte->buff_entry[1] - 48);
+               show_main_page(pte);
+               break;
+       case KEY_FUNC3:
+               pte->size_buff_entry = 0;
+               send_text(TEXT_LINE2, TEXT_INVERSE, pte, SELECTCODEC_MSG);
+               send_blink_cursor(pte);
+               send_cursor_pos(pte, TEXT_LINE2 + SELECTCODEC_START_ENTRY_POS);
+               break;
+       case KEY_HANGUP:
+       case KEY_FUNC4:
+               show_main_page(pte);
+               break;
+       }
+       return;
+}
+
+#define SELECTEXTENSION_START_ENTRY_POS 0
+#define SELECTEXTENSION_MAX_LENGTH 10
+#define SELECTEXTENSION_MSG ".........."
+static void ShowExtensionPage(struct unistimsession *pte)
+{
+       pte->state = STATE_EXTENSION;
+
+       send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Please enter a Terminal");
+       send_text(TEXT_LINE1, TEXT_NORMAL, pte, "Number (TN) :");
+       send_text(TEXT_LINE2, TEXT_NORMAL, pte, SELECTEXTENSION_MSG);
+       send_blink_cursor(pte);
+       send_cursor_pos(pte, TEXT_LINE2 + SELECTEXTENSION_START_ENTRY_POS);
+       send_text_status(pte, "Enter  BackSpcErase");
+       pte->size_buff_entry = 0;
+       return;
+}
+
+static void key_select_extension(struct unistimsession *pte, char keycode)
+{
+       if (keycode == KEY_FUNC2) {
+               if (pte->size_buff_entry <= 1)
+                       keycode = KEY_FUNC3;
+               else {
+                       pte->size_buff_entry -= 2;
+                       keycode = pte->buff_entry[pte->size_buff_entry] + 0x10;
+               }
+       }
+       if ((keycode >= KEY_0) && (keycode <= KEY_9)) {
+               char tmpbuf[] = SELECTEXTENSION_MSG;
+               int i = 0;
+
+               if (pte->size_buff_entry >= SELECTEXTENSION_MAX_LENGTH)
+                       return;
+
+               while (i < pte->size_buff_entry) {
+                       tmpbuf[i + SELECTEXTENSION_START_ENTRY_POS] = pte->buff_entry[i];
+                       i++;
+               }
+               tmpbuf[i + SELECTEXTENSION_START_ENTRY_POS] = keycode - 0x10;
+               pte->buff_entry[i] = keycode - 0x10;
+               pte->size_buff_entry++;
+               send_text(TEXT_LINE2, TEXT_NORMAL, pte, tmpbuf);
+               send_blink_cursor(pte);
+               send_cursor_pos(pte,
+                                         (unsigned char) (TEXT_LINE2 + SELECTEXTENSION_START_ENTRY_POS + 1 +
+                                                                          i));
+               return;
+       }
+
+       switch (keycode) {
+       case KEY_FUNC1:
+               if (pte->size_buff_entry < 1)
+                       return;
+               if (autoprovisioning == AUTOPROVISIONING_TN) {
+                       struct unistim_device *d;
+
+                       /* First step : looking for this TN in our device list */
+                       ast_mutex_lock(&devicelock);
+                       d = devices;
+                       pte->buff_entry[pte->size_buff_entry] = '\0';
+                       while (d) {
+                               if (d->id[0] == 'T') {  /* It's a TN device ? */
+                                       /* It's the TN we're looking for ? */
+                                       if (!strcmp((d->id) + 1, pte->buff_entry)) {
+                                               pte->device = d;
+                                               d->session = pte;
+                                               d->codec_number = DEFAULT_CODEC;
+                                               d->pos_fav = 0;
+                                               d->missed_call = 0;
+                                               d->receiver_state = STATE_ONHOOK;
+                                               strcpy(d->id, pte->macaddr);
+                                               pte->device->extension_number[0] = 'T';
+                                               pte->device->extension = EXTENSION_TN;
+                                               ast_copy_string((pte->device->extension_number) + 1,
+                                                                               pte->buff_entry, pte->size_buff_entry + 1);
+                                               ast_mutex_unlock(&devicelock);
+                                               show_main_page(pte);
+                                               refresh_all_favorite(pte);
+                                               return;
+                                       }
+                               }
+                               d = d->next;
+                       }
+                       ast_mutex_unlock(&devicelock);
+                       send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Invalid Terminal Number.");
+                       send_text(TEXT_LINE1, TEXT_NORMAL, pte, "Please try again :");
+                       send_cursor_pos(pte,
+                                                 (unsigned char) (TEXT_LINE2 + SELECTEXTENSION_START_ENTRY_POS +
+                                                                                  pte->size_buff_entry));
+                       send_blink_cursor(pte);
+               } else {
+                       ast_copy_string(pte->device->extension_number, pte->buff_entry,
+                                                       pte->size_buff_entry + 1);
+                       if (RegisterExtension(pte)) {
+                               send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Invalid extension.");
+                               send_text(TEXT_LINE1, TEXT_NORMAL, pte, "Please try again :");
+                               send_cursor_pos(pte,
+                                                         (unsigned char) (TEXT_LINE2 +
+                                                                                          SELECTEXTENSION_START_ENTRY_POS +
+                                                                                          pte->size_buff_entry));
+                               send_blink_cursor(pte);
+                       } else
+                               show_main_page(pte);
+               }
+               break;
+       case KEY_FUNC3:
+               pte->size_buff_entry = 0;
+               send_text(TEXT_LINE2, TEXT_NORMAL, pte, SELECTEXTENSION_MSG);
+               send_blink_cursor(pte);
+               send_cursor_pos(pte, TEXT_LINE2 + SELECTEXTENSION_START_ENTRY_POS);
+               break;
+       }
+       return;
+}
+
+static int ReformatNumber(char *number)
+{
+       int pos = 0, i = 0, size = strlen(number);
+
+       for (; i < size; i++) {
+               if ((number[i] >= '0') && (number[i] <= '9')) {
+                       if (i == pos) {
+                               pos++;
+                               continue;
+                       }
+                       number[pos] = number[i];
+                       pos++;
+               }
+       }
+       number[pos] = 0;
+       return pos;
+}
+
+static void show_entry_history(struct unistimsession *pte, FILE ** f)
+{
+       char line[TEXT_LENGTH_MAX + 1], status[STATUS_LENGTH_MAX + 1], func1[10], func2[10],
+               func3[10];
+
+       if (fread(line, TEXT_LENGTH_MAX, 1, *f) != 1) {
+               display_last_error("Can't read history date entry");
+               fclose(*f);
+               return;
+       }
+       line[TEXT_LENGTH_MAX + 1] = 0;
+       send_text(TEXT_LINE0, TEXT_NORMAL, pte, line);
+       if (fread(line, TEXT_LENGTH_MAX, 1, *f) != 1) {
+               display_last_error("Can't read callerid entry");
+               fclose(*f);
+               return;
+       }
+       line[TEXT_LENGTH_MAX + 1] = 0;
+       ast_copy_string(pte->device->lst_cid, line, sizeof(pte->device->lst_cid));
+       send_text(TEXT_LINE1, TEXT_NORMAL, pte, line);
+       if (fread(line, TEXT_LENGTH_MAX, 1, *f) != 1) {
+               display_last_error("Can't read callername entry");
+               fclose(*f);
+               return;
+       }
+       line[TEXT_LENGTH_MAX + 1] = 0;
+       send_text(TEXT_LINE2, TEXT_NORMAL, pte, line);
+       fclose(*f);
+
+       snprintf(line, sizeof(line), "Call %03d/%03d", pte->buff_entry[2],
+                        pte->buff_entry[1]);
+       send_texttitle(pte, line);
+
+       if (pte->buff_entry[2] == 1)
+               strcpy(func1, "       ");
+       else
+               strcpy(func1, "Prvious");
+       if (pte->buff_entry[2] >= pte->buff_entry[1])
+               strcpy(func2, "       ");
+       else
+               strcpy(func2, "Next   ");
+       if (ReformatNumber(pte->device->lst_cid))
+               strcpy(func3, "Redial ");
+       else
+               strcpy(func3, "       ");
+       snprintf(status, sizeof(status), "%s%s%sCancel", func1, func2, func3);
+       send_text_status(pte, status);
+}
+
+static char OpenHistory(struct unistimsession *pte, char way, FILE ** f)
+{
+       char tmp[AST_CONFIG_MAX_PATH];
+       char count;
+
+       snprintf(tmp, sizeof(tmp), "%s/%s/%s-%c.csv", (char *) ast_config_AST_LOG_DIR,
+                        USTM_LOG_DIR, pte->device->name, way);
+       *f = fopen(tmp, "r");
+       if (!*f) {
+               display_last_error("Unable to open history file");
+               return 0;
+       }
+       if (fread(&count, 1, 1, *f) != 1) {
+               display_last_error("Unable to read history header - display.");
+               fclose(*f);
+               return 0;
+       }
+       if (count > MAX_ENTRY_LOG) {
+               ast_log(LOG_WARNING, "Invalid count in history header of %s (%d max %d)\n", tmp,
+                               count, MAX_ENTRY_LOG);
+               fclose(*f);
+               return 0;
+       }
+       return count;
+}
+
+static void show_history(struct unistimsession *pte, char way)
+{
+       FILE *f;
+       char count;
+
+       if (!pte->device)
+               return;
+       if (!pte->device->callhistory)
+               return;
+       count = OpenHistory(pte, way, &f);
+       if (!count)
+               return;
+       pte->buff_entry[0] = way;
+       pte->buff_entry[1] = count;
+       pte->buff_entry[2] = 1;
+       show_entry_history(pte, &f);
+       pte->state = STATE_HISTORY;
+}
+
+static void show_main_page(struct unistimsession *pte)
+{
+       char tmpbuf[TEXT_LENGTH_MAX + 1];
+
+
+       if ((pte->device->extension == EXTENSION_ASK) &&
+               (ast_strlen_zero(pte->device->extension_number))) {
+               ShowExtensionPage(pte);
+               return;
+       }
+
+       pte->state = STATE_MAINPAGE;
+
+       send_tone(pte, 0, 0);
+       send_select_output(pte, pte->device->output, pte->device->volume, MUTE_ON_DISCRET);
+       pte->device->lines->lastmsgssent = 0;
+       send_favorite(pte->device->softkeylinepos, FAV_ICON_ONHOOK_BLACK, pte,
+                                pte->device->softkeylabel[pte->device->softkeylinepos]);
+       if (!ast_strlen_zero(pte->device->call_forward)) {
+               send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Call forwarded to :");
+               send_text(TEXT_LINE1, TEXT_NORMAL, pte, pte->device->call_forward);
+               Sendicon(TEXT_LINE0, FAV_ICON_REFLECT + FAV_BLINK_SLOW, pte);
+               send_text_status(pte, "Dial   Redial NoForwd");
+       } else {
+               if ((pte->device->extension == EXTENSION_ASK) ||
+                       (pte->device->extension == EXTENSION_TN))
+                       send_text_status(pte, "Dial   Redial ForwardUnregis");
+               else
+                       send_text_status(pte, "Dial   Redial Forward");
+
+               send_text(TEXT_LINE1, TEXT_NORMAL, pte, pte->device->maintext1);
+               if (pte->device->missed_call == 0)
+                       send_text(TEXT_LINE0, TEXT_NORMAL, pte, pte->device->maintext0);
+               else {
+                       sprintf(tmpbuf, "%d unanswered call(s)", pte->device->missed_call);
+                       send_text(TEXT_LINE0, TEXT_NORMAL, pte, tmpbuf);
+                       Sendicon(TEXT_LINE0, FAV_ICON_CALL_CENTER + FAV_BLINK_SLOW, pte);
+               }
+       }
+       if (ast_strlen_zero(pte->device->maintext2)) {
+               strcpy(tmpbuf, "IP : ");
+               strcat(tmpbuf, ast_inet_ntoa(pte->sin.sin_addr));
+               send_text(TEXT_LINE2, TEXT_NORMAL, pte, tmpbuf);
+       } else
+               send_text(TEXT_LINE2, TEXT_NORMAL, pte, pte->device->maintext2);
+       send_texttitle(pte, pte->device->titledefault);
+       change_favorite_icon(pte, FAV_ICON_ONHOOK_BLACK);
+}
+
+static void key_main_page(struct unistimsession *pte, char keycode)
+{
+       if (pte->device->missed_call) {
+               Sendicon(TEXT_LINE0, FAV_ICON_NONE, pte);
+               pte->device->missed_call = 0;
+       }
+       if ((keycode >= KEY_0) && (keycode <= KEY_SHARP)) {
+               handle_dial_page(pte);
+               key_dial_page(pte, keycode);
+               return;
+       }
+       switch (keycode) {
+       case KEY_FUNC1:
+               handle_dial_page(pte);
+               break;
+       case KEY_FUNC2:
+               if (ast_strlen_zero(pte->device->redial_number))
+                       break;
+               if ((pte->device->output == OUTPUT_HANDSET) &&
+                       (pte->device->receiver_state == STATE_ONHOOK))
+                       send_select_output(pte, OUTPUT_SPEAKER, pte->device->volume, MUTE_OFF);
+               else
+                       send_select_output(pte, pte->device->output, pte->device->volume, MUTE_OFF);
+
+               ast_copy_string(pte->device->phone_number, pte->device->redial_number,
+                                               sizeof(pte->device->phone_number));
+               HandleCallOutgoing(pte);
+               break;
+       case KEY_FUNC3:
+               if (!ast_strlen_zero(pte->device->call_forward)) {
+                       /* Cancel call forwarding */
+                       memmove(pte->device->call_forward + 1, pte->device->call_forward,
+                                       sizeof(pte->device->call_forward));
+                       pte->device->call_forward[0] = '\0';
+                       Sendicon(TEXT_LINE0, FAV_ICON_NONE, pte);
+                       pte->device->output = OUTPUT_HANDSET;   /* Seems to be reseted somewhere */
+                       show_main_page(pte);
+                       break;
+               }
+               pte->device->call_forward[0] = -1;
+               handle_dial_page(pte);
+               break;
+       case KEY_FUNC4:
+               if (pte->device->extension == EXTENSION_ASK) {
+                       UnregisterExtension(pte);
+                       pte->device->extension_number[0] = '\0';
+                       ShowExtensionPage(pte);
+               } else if (pte->device->extension == EXTENSION_TN) {
+                       ast_mutex_lock(&devicelock);
+                       strcpy(pte->device->id, pte->device->extension_number);
+                       pte->buff_entry[0] = '\0';
+                       pte->size_buff_entry = 0;
+                       pte->device->session = NULL;
+                       pte->device = NULL;
+                       ast_mutex_unlock(&devicelock);
+                       ShowExtensionPage(pte);
+               }
+               break;
+       case KEY_FAV0:
+               handle_dial_page(pte);
+               break;
+       case KEY_FAV1:
+       case KEY_FAV2:
+       case KEY_FAV3:
+       case KEY_FAV4:
+       case KEY_FAV5:
+               if ((pte->device->output == OUTPUT_HANDSET) &&
+                       (pte->device->receiver_state == STATE_ONHOOK))
+                       send_select_output(pte, OUTPUT_SPEAKER, pte->device->volume, MUTE_OFF);
+               else
+                       send_select_output(pte, pte->device->output, pte->device->volume, MUTE_OFF);
+               Keyfavorite(pte, keycode);
+               break;
+       case KEY_CONF:
+               HandleSelectCodec(pte);
+               break;
+       case KEY_LOUDSPK:
+               send_select_output(pte, OUTPUT_SPEAKER, pte->device->volume, MUTE_OFF);
+               handle_dial_page(pte);
+               break;
+       case KEY_HEADPHN:
+               send_select_output(pte, OUTPUT_HEADPHONE, pte->device->volume, MUTE_OFF);
+               handle_dial_page(pte);
+               break;
+       case KEY_SNDHIST:
+               show_history(pte, 'o');
+               break;
+       case KEY_RCVHIST:
+               show_history(pte, 'i');
+               break;
+       }
+       return;
+}
+
+static void key_history(struct unistimsession *pte, char keycode)
+{
+       FILE *f;
+       char count;
+       long offset;
+
+       switch (keycode) {
+       case KEY_UP:
+       case KEY_LEFT:
+       case KEY_FUNC1:
+               if (pte->buff_entry[2] <= 1)
+                       return;
+               pte->buff_entry[2]--;
+               count = OpenHistory(pte, pte->buff_entry[0], &f);
+               if (!count)
+                       return;
+               offset = ((pte->buff_entry[2] - 1) * TEXT_LENGTH_MAX * 3);
+               if (fseek(f, offset, SEEK_CUR)) {
+                       display_last_error("Unable to seek history entry.");
+                       fclose(f);
+                       return;
+               }
+               show_entry_history(pte, &f);
+               break;
+       case KEY_DOWN:
+       case KEY_RIGHT:
+       case KEY_FUNC2:
+               if (pte->buff_entry[2] >= pte->buff_entry[1])
+                       return;
+               pte->buff_entry[2]++;
+               count = OpenHistory(pte, pte->buff_entry[0], &f);
+               if (!count)
+                       return;
+               offset = ((pte->buff_entry[2] - 1) * TEXT_LENGTH_MAX * 3);
+               if (fseek(f, offset, SEEK_CUR)) {
+                       display_last_error("Unable to seek history entry.");
+                       fclose(f);
+                       return;
+               }
+               show_entry_history(pte, &f);
+               break;
+       case KEY_FUNC3:
+               if (!ReformatNumber(pte->device->lst_cid))
+                       break;
+               ast_copy_string(pte->device->redial_number, pte->device->lst_cid,
+                                               sizeof(pte->device->redial_number));
+               key_main_page(pte, KEY_FUNC2);
+               break;
+       case KEY_FUNC4:
+       case KEY_HANGUP:
+               show_main_page(pte);
+               break;
+       case KEY_SNDHIST:
+               if (pte->buff_entry[0] == 'i')
+                       show_history(pte, 'o');
+               else
+                       show_main_page(pte);
+               break;
+       case KEY_RCVHIST:
+               if (pte->buff_entry[0] == 'i')
+                       show_main_page(pte);
+               else
+                       show_history(pte, 'i');
+               break;
+       }
+       return;
+}
+
+static void init_phone_step2(struct unistimsession *pte)
+{
+       BUFFSEND;
+       if (unistimdebug)
+               ast_verbose("Sending S4\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_s4, sizeof(packet_send_s4));
+       send_client(SIZE_HEADER + sizeof(packet_send_s4), buffsend, pte);
+       send_date_time2(pte);
+       send_date_time3(pte);
+       if (unistimdebug)
+               ast_verbose("Sending S7\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_S7, sizeof(packet_send_S7));
+       send_client(SIZE_HEADER + sizeof(packet_send_S7), buffsend, pte);
+       if (unistimdebug)
+               ast_verbose("Sending Contrast\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_Contrast, sizeof(packet_send_Contrast));
+       if (pte->device != NULL)
+               buffsend[9] = pte->device->contrast;
+       send_client(SIZE_HEADER + sizeof(packet_send_Contrast), buffsend, pte);
+
+       if (unistimdebug)
+               ast_verbose("Sending S9\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_s9, sizeof(packet_send_s9));
+       send_client(SIZE_HEADER + sizeof(packet_send_s9), buffsend, pte);
+       send_no_ring(pte);
+
+       if (unistimdebug)
+               ast_verbose("Sending S7\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_S7, sizeof(packet_send_S7));
+       send_client(SIZE_HEADER + sizeof(packet_send_S7), buffsend, pte);
+       send_led_update(pte, 0);
+       send_ping(pte);
+       if (pte->state < STATE_MAINPAGE) {
+               if (autoprovisioning == AUTOPROVISIONING_TN) {
+                       ShowExtensionPage(pte);
+                       return;
+               } else {
+                       int i;
+                       char tmp[30];
+
+                       for (i = 1; i < 6; i++)
+                               send_favorite(i, 0, pte, "");
+                       send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Sorry, this phone is not");
+                       send_text(TEXT_LINE1, TEXT_NORMAL, pte, "registred in unistim.cfg");
+                       strcpy(tmp, "MAC = ");
+                       strcat(tmp, pte->macaddr);
+                       send_text(TEXT_LINE2, TEXT_NORMAL, pte, tmp);
+                       send_text_status(pte, "");
+                       send_texttitle(pte, "UNISTIM for*");
+                       return;
+               }
+       }
+       show_main_page(pte);
+       refresh_all_favorite(pte);
+       if (unistimdebug)
+               ast_verbose("Sending arrow\n");
+       memcpy(buffsend + SIZE_HEADER, packet_send_arrow, sizeof(packet_send_arrow));
+       send_client(SIZE_HEADER + sizeof(packet_send_arrow), buffsend, pte);
+       return;
+}
+
+static void process_request(int size, unsigned char *buf, struct unistimsession *pte)
+{
+       char tmpbuf[255];
+       if (memcmp
+               (buf + SIZE_HEADER, packet_recv_resume_connection_with_server,
+                sizeof(packet_recv_resume_connection_with_server)) == 0) {
+               rcv_resume_connection_with_server(pte);
+               return;
+       }
+       if (memcmp(buf + SIZE_HEADER, packet_recv_firm_version, sizeof(packet_recv_firm_version)) ==
+               0) {
+               buf[size] = 0;
+               if (unistimdebug)
+                       ast_verbose("Got the firmware version : '%s'\n", buf + 13);
+               init_phone_step2(pte);
+               return;
+       }
+       if (memcmp(buf + SIZE_HEADER, packet_recv_mac_addr, sizeof(packet_recv_mac_addr)) == 0) {
+               rcv_mac_addr(pte, buf);
+               return;
+       }
+       if (memcmp(buf + SIZE_HEADER, packet_recv_r2, sizeof(packet_recv_r2)) == 0) {
+               if (unistimdebug)
+                       ast_verbose("R2 received\n");
+               return;
+       }
+
+       if (pte->state < STATE_MAINPAGE) {
+               if (unistimdebug)
+                       ast_verbose("Request not authorized in this state\n");
+               return;
+       }
+       if (!memcmp(buf + SIZE_HEADER, packet_recv_pressed_key, sizeof(packet_recv_pressed_key))) {
+               char keycode = buf[13];
+
+               if (unistimdebug)
+                       ast_verbose("Key pressed : keycode = 0x%.2x - current state : %d\n", keycode,
+                                               pte->state);
+               /* test key */
+               if (keycode == KEY_COMPUTR) {
+                       SendTest(pte);
+                       return;
+               }
+               /* End of the test section */
+               switch (pte->state) {
+               case STATE_INIT:
+                       if (unistimdebug)
+                               ast_verbose("No keys allowed in the init state\n");
+                       break;
+               case STATE_AUTHDENY:
+                       if (unistimdebug)
+                               ast_verbose("No keys allowed in authdeny state\n");
+                       break;
+               case STATE_MAINPAGE:
+                       key_main_page(pte, keycode);
+                       break;
+               case STATE_DIALPAGE:
+                       key_dial_page(pte, keycode);
+                       break;
+               case STATE_RINGING:
+                       key_ringing(pte, keycode);
+                       break;
+               case STATE_CALL:
+                       key_call(pte, keycode);
+                       break;
+               case STATE_EXTENSION:
+                       key_select_extension(pte, keycode);
+                       break;
+               case STATE_SELECTCODEC:
+                       key_select_codec(pte, keycode);
+                       break;
+               case STATE_HISTORY:
+                       key_history(pte, keycode);
+                       break;
+               default:
+                       ast_log(LOG_WARNING, "Key : Unknown state\n");
+               }
+               return;
+       }
+       if (memcmp(buf + SIZE_HEADER, packet_recv_pick_up, sizeof(packet_recv_pick_up)) == 0) {
+               if (unistimdebug)
+                       ast_verbose("Handset off hook\n");
+               if (!pte->device)              /* We are not yet registred (asking for a TN in AUTOPROVISIONING_TN) */
+                       return;
+               pte->device->receiver_state = STATE_OFFHOOK;
+               if (pte->device->output == OUTPUT_HEADPHONE)
+                       send_select_output(pte, OUTPUT_HEADPHONE, pte->device->volume, MUTE_OFF);
+               else
+                       send_select_output(pte, OUTPUT_HANDSET, pte->device->volume, MUTE_OFF);
+               if (pte->state == STATE_RINGING)
+                       HandleCallIncoming(pte);
+               else if ((pte->state == STATE_DIALPAGE) || (pte->state == STATE_CALL))
+                       send_select_output(pte, OUTPUT_HANDSET, pte->device->volume, MUTE_OFF);
+               else if (pte->state == STATE_EXTENSION) /* We must have a TN before calling */
+                       return;
+               else {
+                       send_select_output(pte, OUTPUT_HANDSET, pte->device->volume, MUTE_OFF);
+                       handle_dial_page(pte);
+               }
+               return;
+       }
+       if (memcmp(buf + SIZE_HEADER, packet_recv_hangup, sizeof(packet_recv_hangup)) == 0) {
+               if (unistimdebug)
+                       ast_verbose("Handset on hook\n");
+               if (!pte->device)
+                       return;
+               pte->device->receiver_state = STATE_ONHOOK;
+               if (pte->state == STATE_CALL)
+                       close_call(pte);
+               else if (pte->device->lines->subs[SUB_REAL]->owner)
+                       close_call(pte);
+               else if (pte->state == STATE_EXTENSION)
+                       return;
+               else
+                       show_main_page(pte);
+               return;
+       }
+       strcpy(tmpbuf, ast_inet_ntoa(pte->sin.sin_addr));
+       strcat(tmpbuf, " Unknown request packet\n");
+       if (unistimdebug)
+               ast_log(LOG_DEBUG, tmpbuf);
+       return;
+}
+
+static void parsing(int size, unsigned char *buf, struct unistimsession *pte,
+       struct sockaddr_in *addr_from)
+{
+       unsigned short *sbuf = (unsigned short *) buf;
+       unsigned short seq;
+       char tmpbuf[255];
+
+       strcpy(tmpbuf, ast_inet_ntoa(addr_from->sin_addr));
+
+       if (size < 10) {
+               if (size == 0) {
+                       ast_log(LOG_WARNING, "%s Read error\n", tmpbuf);
+               } else {
+                       ast_log(LOG_NOTICE, "%s Packet too short - ignoring\n", tmpbuf);
+               }
+               return;
+       }
+       if (sbuf[0] == 0xffff) {        /* Starting with 0xffff ? *//* Yes, discovery packet ? */
+               if (size != sizeof(packet_rcv_discovery)) {
+                       ast_log(LOG_NOTICE, "%s Invalid size of a discovery packet\n", tmpbuf);
+               } else {
+                       if (memcmp(buf, packet_rcv_discovery, sizeof(packet_rcv_discovery)) == 0) {
+                               if (unistimdebug)
+                                       ast_verbose("Discovery packet received - Sending Discovery ACK\n");
+                               if (pte) {            /* A session was already active for this IP ? */
+                                       if (pte->state == STATE_INIT) { /* Yes, but it's a dupe */
+                                               if (unistimdebug)
+                                                       ast_verbose("Duplicated Discovery packet\n");
+                                               send_raw_client(sizeof(packet_send_discovery_ack),
+                                                                         packet_send_discovery_ack, addr_from, &pte->sout);
+                                               pte->seq_phone = (short) 0x0000;        /* reset sequence number */
+                                       } else {        /* No, probably a reboot, phone side */
+                                               close_client(pte);       /* Cleanup the previous session */
+                                               if (create_client(addr_from))
+                                                       send_raw_client(sizeof(packet_send_discovery_ack),
+                                                                                 packet_send_discovery_ack, addr_from, &pte->sout);
+                                       }
+                               } else {
+                                       /* Creating new entry in our phone list */
+                                       if ((pte = create_client(addr_from)))
+                                               send_raw_client(sizeof(packet_send_discovery_ack),
+                                                                         packet_send_discovery_ack, addr_from, &pte->sout);
+                               }
+                               return;
+                       }
+                       ast_log(LOG_NOTICE, "%s Invalid discovery packet\n", tmpbuf);
+               }
+               return;
+       }
+       if (!pte) {
+               if (unistimdebug)
+                       ast_verbose("%s Not a discovery packet from an unknown source : ignoring\n",
+                                               tmpbuf);
+               return;
+       }
+
+       if (sbuf[0] != 0) {                  /* Starting with something else than 0x0000 ? */
+               ast_log(LOG_NOTICE, "Unknown packet received - ignoring\n");
+               return;
+       }
+       if (buf[5] != 2) {
+               ast_log(LOG_NOTICE, "%s Wrong direction : got 0x%.2x expected 0x02\n", tmpbuf,
+                               buf[5]);
+               return;
+       }
+       seq = ntohs(sbuf[1]);
+       if (buf[4] == 1) {
+               ast_mutex_lock(&pte->lock);
+               if ((unistimdebug) && (option_verbose > 5))
+                       ast_verbose("ACK received for packet #0x%.4x\n", seq);
+               pte->nb_retransmit = 0;
+
+               if ((pte->last_seq_ack) + 1 == seq) {
+                       pte->last_seq_ack++;
+                       check_send_queue(pte);
+                       ast_mutex_unlock(&pte->lock);
+                       return;
+               }
+               if (pte->last_seq_ack > seq) {
+                       if (pte->last_seq_ack == 0xffff) {
+                               ast_verbose("ACK at 0xffff, restarting counter.\n");
+                               pte->last_seq_ack = 0;
+                       } else
+                               ast_log(LOG_NOTICE,
+                                               "%s Warning : ACK received for an already ACKed packet : #0x%.4x we are at #0x%.4x\n",
+                                               tmpbuf, seq, pte->last_seq_ack);
+                       ast_mutex_unlock(&pte->lock);
+                       return;
+               }
+               if (pte->seq_server < seq) {
+                       ast_log(LOG_NOTICE,
+                                       "%s Error : ACK received for a non-existant packet : #0x%.4x\n",
+                                       tmpbuf, pte->seq_server);
+                       ast_mutex_unlock(&pte->lock);
+                       return;
+               }
+               if (unistimdebug)
+                       ast_verbose("%s ACK gap : Received ACK #0x%.4x, previous was #0x%.4x\n",
+                                               tmpbuf, seq, pte->last_seq_ack);
+               pte->last_seq_ack = seq;
+               check_send_queue(pte);
+               ast_mutex_unlock(&pte->lock);
+               return;
+       }
+       if (buf[4] == 2) {
+               if (unistimdebug)
+                       ast_verbose("Request received\n");
+               if (pte->seq_phone == seq) {
+                       /* Send ACK */
+                       buf[4] = 1;
+                       buf[5] = 1;
+                       send_raw_client(SIZE_HEADER, buf, addr_from, &pte->sout);
+                       pte->seq_phone++;
+
+                       process_request(size, buf, pte);
+                       return;
+               }
+               if (pte->seq_phone > seq) {
+                       ast_log(LOG_NOTICE,
+                                       "%s Warning : received a retransmitted packet : #0x%.4x (we are at #0x%.4x)\n",
+                                       tmpbuf, seq, pte->seq_phone);
+                       /* BUG ? pte->device->seq_phone = seq; */
+                       /* Send ACK */
+                       buf[4] = 1;
+                       buf[5] = 1;
+                       send_raw_client(SIZE_HEADER, buf, addr_from, &pte->sout);
+                       return;
+               }
+               ast_log(LOG_NOTICE,
+                               "%s Warning : we lost a packet : received #0x%.4x (we are at #0x%.4x)\n",
+                               tmpbuf, seq, pte->seq_phone);
+               return;
+       }
+       if (buf[4] == 0) {
+               ast_log(LOG_NOTICE, "%s Retransmit request for packet #0x%.4x\n", tmpbuf, seq);
+               if (pte->last_seq_ack > seq) {
+                       ast_log(LOG_NOTICE,
+                                       "%s Error : received a request for an already ACKed packet : #0x%.4x\n",
+                                       tmpbuf, pte->last_seq_ack);
+                       return;
+               }
+               if (pte->seq_server < seq) {
+                       ast_log(LOG_NOTICE,
+                                       "%s Error : received a request for a non-existant packet : #0x%.4x\n",
+                                       tmpbuf, pte->seq_server);
+                       return;
+               }
+               send_retransmit(pte);
+               return;
+       }
+       ast_log(LOG_NOTICE, "%s Unknown request : got 0x%.2x expected 0x00,0x01 or 0x02\n",
+                       tmpbuf, buf[4]);
+       return;
+}
+
+static struct unistimsession *channel_to_session(struct ast_channel *ast)
+{
+       struct unistim_subchannel *sub;
+       if (!ast) {
+               ast_log(LOG_WARNING, "Unistim callback function called with a null channel\n");
+               return NULL;
+       }
+       if (!ast->tech_pvt) {
+               ast_log(LOG_WARNING, "Unistim callback function called without a tech_pvt\n");
+               return NULL;
+       }
+       sub = ast->tech_pvt;
+
+       if (!sub->parent) {
+               ast_log(LOG_WARNING, "Unistim callback function called without a line\n");
+               return NULL;
+       }
+       if (!sub->parent->parent) {
+               ast_log(LOG_WARNING, "Unistim callback function called without a device\n");
+               return NULL;
+       }
+       if (!sub->parent->parent->session) {
+               ast_log(LOG_WARNING, "Unistim callback function called without a session\n");
+               return NULL;
+       }
+       return sub->parent->parent->session;
+}
+
+/*--- unistim_call: Initiate UNISTIM call from PBX ---*/
+/*      used from the dial() application      */
+static int unistim_call(struct ast_channel *ast, char *dest, int timeout)
+{
+       int res = 0;
+       struct unistim_subchannel *sub;
+       struct unistimsession *session;
+
+       session = channel_to_session(ast);
+       if (!session) {
+               ast_log(LOG_ERROR, "Device not registered, cannot call %s\n", dest);
+               return -1;
+       }
+
+       sub = ast->tech_pvt;
+       if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
+               ast_log(LOG_WARNING, "unistim_call called on %s, neither down nor reserved\n",
+                               ast->name);
+               return -1;
+       }
+
+       if (unistimdebug)
+               ast_verbose(VERBOSE_PREFIX_3 "unistim_call(%s)\n", ast->name);
+
+       session->state = STATE_RINGING;
+       Sendicon(TEXT_LINE0, FAV_ICON_NONE, session);
+
+       if (sub->owner) {
+               if (sub->owner->cid.cid_num) {
+                       send_text(TEXT_LINE1, TEXT_NORMAL, session, sub->owner->cid.cid_num);
+                       change_callerid(session, 0, sub->owner->cid.cid_num);
+               } else {
+                       send_text(TEXT_LINE1, TEXT_NORMAL, session, DEFAULTCALLERID);
+                       change_callerid(session, 0, DEFAULTCALLERID);
+               }
+               if (sub->owner->cid.cid_name) {
+                       send_text(TEXT_LINE0, TEXT_NORMAL, session, sub->owner->cid.cid_name);
+                       change_callerid(session, 1, sub->owner->cid.cid_name);
+               } else {
+                       send_text(TEXT_LINE0, TEXT_NORMAL, session, DEFAULTCALLERNAME);
+                       change_callerid(session, 1, DEFAULTCALLERNAME);
+               }
+       }
+       send_text(TEXT_LINE2, TEXT_NORMAL, session, "is calling you.");
+       send_text_status(session, "Accept              Ignore");
+
+       if (sub->ringstyle == -1)
+               send_ring(session, session->device->ringvolume, session->device->ringstyle);
+       else {
+               if (sub->ringvolume == -1)
+                       send_ring(session, session->device->ringvolume, sub->ringstyle);
+               else
+                       send_ring(session, sub->ringvolume, sub->ringstyle);
+       }
+       change_favorite_icon(session, FAV_ICON_SPEAKER_ONHOOK_BLACK + FAV_BLINK_FAST);
+
+       ast_setstate(ast, AST_STATE_RINGING);
+       ast_queue_control(ast, AST_CONTROL_RINGING);
+       return res;
+}
+
+/*--- unistim_hangup: Hangup UNISTIM call */
+static int unistim_hangup(struct ast_channel *ast)
+{
+       struct unistim_subchannel *sub;
+       struct unistim_line *l;
+       struct unistimsession *s;
+
+       s = channel_to_session(ast);
+       sub = ast->tech_pvt;
+       if (!s) {
+               ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n");
+               ast_mutex_lock(&sub->lock);
+               sub->owner = NULL;
+               ast->tech_pvt = NULL;
+               sub->alreadygone = 0;
+               ast_mutex_unlock(&sub->lock);
+               if (sub->rtp) {
+                       if (unistimdebug)
+                               ast_verbose("Destroying RTP session\n");
+                       ast_rtp_destroy(sub->rtp);
+                       sub->rtp = NULL;
+               }
+               return 0;
+       }
+       l = sub->parent;
+       if (unistimdebug)
+               ast_verbose("unistim_hangup(%s) on %s@%s\n", ast->name, l->name, l->parent->name);
+
+       if ((l->subs[SUB_THREEWAY]) && (sub->subtype == SUB_REAL)) {
+               if (unistimdebug)
+                       ast_verbose("Real call disconnected while talking to threeway\n");
+               sub->owner = NULL;
+               ast->tech_pvt = NULL;
+               return 0;
+       }
+       if ((l->subs[SUB_REAL]->owner) && (sub->subtype == SUB_THREEWAY) &&
+               (sub->alreadygone == 0)) {
+               if (unistimdebug)
+                       ast_verbose("threeway call disconnected, switching to real call\n");
+               send_text(TEXT_LINE0, TEXT_NORMAL, s, "Three way call canceled,");
+               send_text(TEXT_LINE1, TEXT_NORMAL, s, "switching back to");
+               send_text(TEXT_LINE2, TEXT_NORMAL, s, "previous call.");
+               send_text_status(s, "Hangup Transf");
+               ast_moh_stop(ast_bridged_channel(l->subs[SUB_REAL]->owner));
+               swap_subs(l, SUB_THREEWAY, SUB_REAL);
+               l->parent->moh = 0;
+               ast_mutex_lock(&sub->lock);
+               sub->owner = NULL;
+               ast->tech_pvt = NULL;
+               ast_mutex_unlock(&sub->lock);
+               unalloc_sub(l, SUB_THREEWAY);
+               return 0;
+       }
+       ast_mutex_lock(&sub->lock);
+       sub->owner = NULL;
+       ast->tech_pvt = NULL;
+       sub->alreadygone = 0;
+       ast_mutex_unlock(&sub->lock);
+       if (!s) {
+               if (unistimdebug)
+                       ast_verbose("Asked to hangup channel not connected (no session)\n");
+               if (sub->rtp) {
+                       if (unistimdebug)
+                               ast_verbose("Destroying RTP session\n");
+                       ast_rtp_destroy(sub->rtp);
+                       sub->rtp = NULL;
+               }
+               return 0;
+       }
+       if (sub->subtype == SUB_REAL) {
+               /* Stop the silence generator */
+               if (s->device->silence_generator) {
+                       if (unistimdebug)
+                               ast_verbose("Stopping silence generator\n");
+                       if (sub->owner)
+                               ast_channel_stop_silence_generator(sub->owner,
+                                                                                                  s->device->silence_generator);
+                       else
+                               ast_log(LOG_WARNING,
+                                               "Trying to stop silence generator on a null channel !\n");
+                       s->device->silence_generator = NULL;
+               }
+       }
+       l->parent->moh = 0;
+       send_no_ring(s);
+       send_end_call(s);
+       if (sub->rtp) {
+               if (unistimdebug)
+                       ast_verbose("Destroying RTP session\n");
+               ast_rtp_destroy(sub->rtp);
+               sub->rtp = NULL;
+       } else if (unistimdebug)
+               ast_verbose("No RTP session to destroy\n");
+       if (l->subs[SUB_THREEWAY]) {
+               if (unistimdebug)
+                       ast_verbose("Cleaning other subchannels\n");
+               unalloc_sub(l, SUB_THREEWAY);
+       }
+       if (s->state == STATE_RINGING)
+               cancel_dial(s);
+       else if (s->state == STATE_CALL)
+               close_call(s);
+
+       return 0;
+}
+
+/*--- unistim_answer: Answer UNISTIM call */
+static int unistim_answer(struct ast_channel *ast)
+{
+       int res = 0;
+       struct unistim_subchannel *sub;
+       struct unistim_line *l;
+       struct unistimsession *s;
+
+       s = channel_to_session(ast);
+       if (!s) {
+               ast_log(LOG_WARNING, "unistim_answer on a disconnected device ?\n");
+               return -1;
+       }
+       sub = ast->tech_pvt;
+       l = sub->parent;
+
+       if ((!sub->rtp) && (!l->subs[SUB_THREEWAY]))
+               start_rtp(sub);
+       if (unistimdebug)
+               ast_verbose("unistim_answer(%s) on %s@%s-%d\n", ast->name, l->name,
+                                       l->parent->name, sub->subtype);
+       send_text(TEXT_LINE2, TEXT_NORMAL, l->parent->session, "is now on-line");
+       if (l->subs[SUB_THREEWAY])
+               send_text_status(l->parent->session, "Transf Cancel");
+       else
+               send_text_status(l->parent->session, "Hangup Transf");
+       send_start_timer(l->parent->session);
+       if (ast->_state != AST_STATE_UP)
+               ast_setstate(ast, AST_STATE_UP);
+       return res;
+}
+
+/*--- unistimsock_read: Read data from UNISTIM socket ---*/
+/*    Successful messages is connected to UNISTIM call and forwarded to parsing() */
+static int unistimsock_read(int *id, int fd, short events, void *ignore)
+{
+       struct sockaddr_in addr_from = { 0, };
+       struct unistimsession *cur = NULL;
+       int found = 0;
+       int tmp = 0;
+       int dw_num_bytes_rcvd;
+#ifdef DUMP_PACKET
+       int dw_num_bytes_rcvdd;
+       char iabuf[INET_ADDRSTRLEN];
+#endif
+
+       dw_num_bytes_rcvd =
+               recvfrom(unistimsock, buff, SIZE_PAGE, 0, (struct sockaddr *) &addr_from,
+                                &size_addr_from);
+       if (dw_num_bytes_rcvd == -1) {
+               if (errno == EAGAIN)
+                       ast_log(LOG_NOTICE, "UNISTIM: Received packet with bad UDP checksum\n");
+               else if (errno != ECONNREFUSED)
+                       ast_log(LOG_WARNING, "Recv error %d (%s)\n", errno, strerror(errno));
+               return 1;
+       }
+
+       /* Looking in the phone list if we already have a registration for him */
+       ast_mutex_lock(&sessionlock);
+       cur = sessions;
+       while (cur) {
+               if (cur->sin.sin_addr.s_addr == addr_from.sin_addr.s_addr) {
+                       found = 1;
+                       break;
+               }
+               tmp++;
+               cur = cur->next;
+       }
+       ast_mutex_unlock(&sessionlock);
+
+#ifdef DUMP_PACKET
+       if (unistimdebug)
+               ast_verbose("\n*** Dump %d bytes from %s - phone_table[%d] ***\n",
+                                       dw_num_bytes_rcvd, ast_inet_ntoa(addr_from.sin_addr), tmp);
+       for (dw_num_bytes_rcvdd = 0; dw_num_bytes_rcvdd < dw_num_bytes_rcvd;
+                dw_num_bytes_rcvdd++)
+               ast_verbose("%.2x ", (unsigned char) buff[dw_num_bytes_rcvdd]);
+       ast_verbose("\n******************************************\n");
+#endif
+
+       if (!found) {
+               if (unistimdebug)
+                       ast_verbose("Received a packet from an unknown source\n");
+               parsing(dw_num_bytes_rcvd, buff, NULL, (struct sockaddr_in *) &addr_from);
+
+       } else
+               parsing(dw_num_bytes_rcvd, buff, cur, (struct sockaddr_in *) &addr_from);
+
+       return 1;
+}
+
+static struct ast_frame *unistim_rtp_read(const struct ast_channel *ast,
+       const struct unistim_subchannel *sub)
+{
+       /* Retrieve audio/etc from channel.  Assumes sub->lock is already held. */
+       struct ast_frame *f;
+
+       if (!ast) {
+               ast_log(LOG_WARNING, "Channel NULL while reading\n");
+               return &ast_null_frame;
+       }
+
+       if (!sub->rtp) {
+               ast_log(LOG_WARNING, "RTP handle NULL while reading on subchannel %d\n",
+                               sub->subtype);
+               return &ast_null_frame;
+       }
+
+       switch (ast->fdno) {
+       case 0:
+               f = ast_rtp_read(sub->rtp);     /* RTP Audio */
+               break;
+       case 1:
+               f = ast_rtcp_read(sub->rtp);    /* RTCP Control Channel */
+               break;
+       default:
+               f = &ast_null_frame;
+       }
+
+       if (sub->owner) {
+               /* We already hold the channel lock */
+               if (f->frametype == AST_FRAME_VOICE) {
+                       if (f->subclass != sub->owner->nativeformats) {
+                               ast_log(LOG_DEBUG,
+                                               "Oooh, format changed from %s (%d) to %s (%d)\n",
+                                               ast_getformatname(sub->owner->nativeformats),
+                                               sub->owner->nativeformats, ast_getformatname(f->subclass),
+                                               f->subclass);
+
+                               sub->owner->nativeformats = f->subclass;
+                               ast_set_read_format(sub->owner, sub->owner->readformat);
+                               ast_set_write_format(sub->owner, sub->owner->writeformat);
+                       }
+               }
+       }
+
+       return f;
+}
+
+static struct ast_frame *unistim_read(struct ast_channel *ast)
+{
+       struct ast_frame *fr;
+       struct unistim_subchannel *sub = ast->tech_pvt;
+
+       ast_mutex_lock(&sub->lock);
+       fr = unistim_rtp_read(ast, sub);
+       ast_mutex_unlock(&sub->lock);
+
+       return fr;
+}
+
+static int unistim_write(struct ast_channel *ast, struct ast_frame *frame)
+{
+       struct unistim_subchannel *sub = ast->tech_pvt;
+       int res = 0;
+
+       if (frame->frametype != AST_FRAME_VOICE) {
+               if (frame->frametype == AST_FRAME_IMAGE)
+                       return 0;
+               else {
+                       ast_log(LOG_WARNING, "Can't send %d type frames with unistim_write\n",
+                                       frame->frametype);
+                       return 0;
+               }
+       } else {
+               if (!(frame->subclass & ast->nativeformats)) {
+                       ast_log(LOG_WARNING,
+                                       "Asked to transmit frame type %s (%d), while native formats is %s (%d) (read/write = %s (%d)/%d)\n",
+                                       ast_getformatname(frame->subclass), frame->subclass,
+                                       ast_getformatname(ast->nativeformats), ast->nativeformats,
+                                       ast_getformatname(ast->readformat), ast->readformat,
+                                       ast->writeformat);
+                       return -1;
+               }
+       }
+
+       if (sub) {
+               ast_mutex_lock(&sub->lock);
+               if (sub->rtp) {
+                       res = ast_rtp_write(sub->rtp, frame);
+               }
+               ast_mutex_unlock(&sub->lock);
+       }
+
+       return res;
+}
+
+static int unistim_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
+{
+       struct unistim_subchannel *p = newchan->tech_pvt;
+       struct unistim_line *l = p->parent;
+
+       ast_mutex_lock(&p->lock);
+
+       ast_log(LOG_DEBUG, "New owner for channel USTM/%s@%s-%d is %s\n", l->name,
+                       l->parent->name, p->subtype, newchan->name);
+
+       if (p->owner != oldchan) {
+               ast_log(LOG_WARNING, "old channel wasn't %s (%p) but was %s (%p)\n",
+                               oldchan->name, oldchan, p->owner->name, p->owner);
+               return -1;
+       }
+
+       p->owner = newchan;
+
+       ast_mutex_unlock(&p->lock);
+
+       return 0;
+
+}
+
+static char *control2str(int ind)
+{
+       switch (ind) {
+       case AST_CONTROL_HANGUP:
+               return "Other end has hungup";
+       case AST_CONTROL_RING:
+               return "Local ring";
+       case AST_CONTROL_RINGING:
+               return "Remote end is ringing";
+       case AST_CONTROL_ANSWER:
+               return "Remote end has answered";
+       case AST_CONTROL_BUSY:
+               return "Remote end is busy";
+       case AST_CONTROL_TAKEOFFHOOK:
+               return "Make it go off hook";
+       case AST_CONTROL_OFFHOOK:
+               return "Line is off hook";
+       case AST_CONTROL_CONGESTION:
+               return "Congestion (circuits busy)";
+       case AST_CONTROL_FLASH:
+               return "Flash hook";
+       case AST_CONTROL_WINK:
+               return "Wink";
+       case AST_CONTROL_OPTION:
+               return "Set a low-level option";
+       case AST_CONTROL_RADIO_KEY:
+               return "Key Radio";
+       case AST_CONTROL_RADIO_UNKEY:
+               return "Un-Key Radio";
+       case -1:
+               return "Stop tone";
+       }
+       return "UNKNOWN";
+}
+
+static void in_band_indication(struct ast_channel *ast, const struct ind_tone_zone *tz,
+       const char *indication)
+{
+       const struct ind_tone_zone_sound *ts = NULL;
+
+       ts = ast_get_indication_tone(tz, indication);
+
+       if (ts && ts->data[0])
+               ast_playtones_start(ast, 0, ts->data, 1);
+       else
+               ast_log(LOG_WARNING, "Unable to get indication tone for %s\n", indication);
+}
+
+static int unistim_indicate(struct ast_channel *ast, int ind, const void *data, 
+       size_t datalen)
+{
+       struct unistim_subchannel *sub;
+       struct unistim_line *l;
+       struct unistimsession *s;
+
+       if (unistimdebug) {
+               ast_verbose(VERBOSE_PREFIX_3 "Asked to indicate '%s' condition on channel %s\n",
+                                       control2str(ind), ast->name);
+       }
+
+       s = channel_to_session(ast);
+       if (!s)
+               return -1;
+
+       sub = ast->tech_pvt;
+       l = sub->parent;
+
+       switch (ind) {
+       case AST_CONTROL_RINGING:
+               if (ast->_state != AST_STATE_UP) {
+                       send_text(TEXT_LINE2, TEXT_NORMAL, s, "Ringing...");
+                       in_band_indication(ast, l->parent->tz, "ring");
+                       s->device->missed_call = -1;
+                       break;
+               }
+               return -1;
+       case AST_CONTROL_BUSY:
+               if (ast->_state != AST_STATE_UP) {
+                       sub->alreadygone = 1;
+                       send_text(TEXT_LINE2, TEXT_NORMAL, s, "Busy");
+                       in_band_indication(ast, l->parent->tz, "busy");
+                       s->device->missed_call = -1;
+                       break;
+               }
+               return -1;
+       case AST_CONTROL_CONGESTION:
+               if (ast->_state != AST_STATE_UP) {
+                       sub->alreadygone = 1;
+                       send_text(TEXT_LINE2, TEXT_NORMAL, s, "Congestion");
+                       in_band_indication(ast, l->parent->tz, "congestion");
+                       s->device->missed_call = -1;
+                       break;
+               }
+               return -1;
+       case AST_CONTROL_HOLD:
+               ast_moh_start(ast, data, NULL);
+               break;
+       case AST_CONTROL_UNHOLD:
+               ast_moh_stop(ast);
+               break;
+       case AST_CONTROL_PROGRESS:
+               break;
+       case -1:
+               ast_playtones_stop(ast);
+               s->device->missed_call = 0;
+               break;
+       case AST_CONTROL_PROCEEDING:
+               break;
+       default:
+               ast_log(LOG_WARNING, "Don't know how to indicate condition %d\n", ind);
+               return -1;
+       }
+
+       return 0;
+}
+
+static struct unistim_subchannel *find_subchannel_by_name(const char *dest)
+{
+       struct unistim_line *l;
+       struct unistim_device *d;
+       char line[256];
+       char *at;
+       char *device;
+
+       ast_copy_string(line, dest, sizeof(line));
+       at = strchr(line, '@');
+       if (!at) {
+               ast_log(LOG_NOTICE, "Device '%s' has no @ (at) sign!\n", dest);
+               return NULL;
+       }
+       *at = '\0';
+       at++;
+       device = at;
+       ast_mutex_lock(&devicelock);
+       d = devices;
+       at = strchr(device, '/');       /* Extra options ? */
+       if (at)
+               *at = '\0';
+       while (d) {
+               if (!strcasecmp(d->name, device)) {
+                       if (unistimdebug)
+                               ast_verbose("Found device: %s\n", d->name);
+                       /* Found the device */
+                       l = d->lines;
+                       while (l) {
+                               /* Search for the right line */
+                               if (!strcasecmp(l->name, line)) {
+                                       l->subs[SUB_REAL]->ringvolume = -1;
+                                       l->subs[SUB_REAL]->ringstyle = -1;
+                                       if (at) {       /* Other options ? */
+                                               at++;   /* Skip slash */
+                                               if (*at == 'r') {       /* distinctive ring */
+                                                       at++;
+                                                       if ((*at < '0') || (*at > '7')) /* ring style */
+                                                               ast_log(LOG_WARNING, "Invalid ring selection (%s)", at);
+                                                       else {
+                                                               char ring_volume = -1;
+                                                               char ring_style = *at - '0';
+                                                               at++;
+                                                               if ((*at >= '0') && (*at <= '3'))       /* ring volume */
+                                                                       ring_volume = *at - '0';
+                                                               if (unistimdebug)
+                                                                       ast_verbose
+                                                                               ("Distinctive ring : style #%d volume %d\n",
+                                                                                ring_style, ring_volume);
+                                                               l->subs[SUB_REAL]->ringvolume = ring_volume;
+                                                               l->subs[SUB_REAL]->ringstyle = ring_style;
+                                                       }
+                                               }
+                                       }
+                                       ast_mutex_unlock(&devicelock);
+                                       return l->subs[SUB_REAL];
+                               }
+                               l = l->next;
+                       }
+               }
+               d = d->next;
+       }
+       /* Device not found */
+       ast_mutex_unlock(&devicelock);
+
+       return NULL;
+}
+
+static int unistim_senddigit_begin(struct ast_channel *ast, char digit)
+{
+       struct unistimsession *pte = channel_to_session(ast);
+
+       if (!pte)
+               return -1;
+
+       return unistim_do_senddigit(pte, digit);
+}
+
+static int unistim_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration)
+{
+       struct unistimsession *pte = channel_to_session(ast);
+       struct ast_frame f = { 0, };
+       struct unistim_subchannel *sub;
+
+       sub = pte->device->lines->subs[SUB_REAL];
+
+       if (!sub->owner) {
+               ast_log(LOG_WARNING, "Unable to find subchannel in dtmf senddigiti_end\n");
+               return -1;
+       }
+
+       if (unistimdebug)
+               ast_verbose("Send Digit off %c\n", digit);
+
+       if (!pte)
+               return -1;
+
+       send_tone(pte, 0, 0);
+       f.frametype = AST_FRAME_DTMF;
+       f.subclass = digit;
+       f.src = "unistim";
+       ast_queue_frame(sub->owner, &f);
+
+       return 0;
+}
+
+/*--- unistim_sendtext: Display a text on the phone screen ---*/
+/*      Called from PBX core text message functions */
+static int unistim_sendtext(struct ast_channel *ast, const char *text)
+{
+       struct unistimsession *pte = channel_to_session(ast);
+       int size;
+       char tmp[TEXT_LENGTH_MAX + 1];
+
+       if (unistimdebug)
+               ast_verbose("unistim_sendtext called\n");
+
+       if (!text) {
+               ast_log(LOG_WARNING, "unistim_sendtext called with a null text\n");
+               return 1;
+       }
+
+       size = strlen(text);
+       if (text[0] == '@') {
+               int pos = 0, i = 1, tok = 0, sz = 0;
+               char label[11];
+               char number[16];
+               char icon = '\0';
+               char cur = '\0';
+
+               memset(label, 0, 11);
+               memset(number, 0, 16);
+               while (text[i]) {
+                       cur = text[i++];
+                       switch (tok) {
+                       case 0:
+                               if ((cur < '0') && (cur > '5')) {
+                                       ast_log(LOG_WARNING,
+                                                       "sendtext failed : position must be a number beetween 0 and 5\n");
+                                       return 1;
+                               }
+                               pos = cur - '0';
+                               tok = 1;
+                               continue;
+                       case 1:
+                               if (cur != '@') {
+                                       ast_log(LOG_WARNING, "sendtext failed : invalid position\n");
+                                       return 1;
+                               }
+                               tok = 2;
+                               continue;
+                       case 2:
+                               if ((cur < '3') && (cur > '6')) {
+                                       ast_log(LOG_WARNING,
+                                                       "sendtext failed : icon must be a number beetween 32 and 63 (first digit invalid)\n");
+                                       return 1;
+                               }
+                               icon = (cur - '0') * 10;
+                               tok = 3;
+                               continue;
+                       case 3:
+                               if ((cur < '0') && (cur > '9')) {
+                                       ast_log(LOG_WARNING,
+                                                       "sendtext failed : icon must be a number beetween 32 and 63 (second digit invalid)\n");
+                                       return 1;
+                               }
+                               icon += (cur - '0');
+                               tok = 4;
+                               continue;
+                       case 4:
+                               if (cur != '@') {
+                                       ast_log(LOG_WARNING,
+                                                       "sendtext failed : icon must be a number beetween 32 and 63 (too many digits)\n");
+                                       return 1;
+                               }
+                               tok = 5;
+                               continue;
+                       case 5:
+                               if (cur == '@') {
+                                       tok = 6;
+                                       sz = 0;
+                                       continue;
+                               }
+                               if (sz > 10)
+                                       continue;
+                               label[sz] = cur;
+                               sz++;
+                               continue;
+                       case 6:
+                               if (sz > 15) {
+                                       ast_log(LOG_WARNING,
+                                                       "sendtext failed : extension too long = %d (15 car max)\n",
+                                                       sz);
+                                       return 1;
+                               }
+                               number[sz] = cur;
+                               sz++;
+                               continue;
+                       }
+               }
+               if (tok != 6) {
+                       ast_log(LOG_WARNING, "sendtext failed : incomplet command\n");
+                       return 1;
+               }
+               if (!pte->device) {
+                       ast_log(LOG_WARNING, "sendtext failed : no device ?\n");
+                       return 1;
+               }
+               strcpy(pte->device->softkeylabel[pos], label);
+               strcpy(pte->device->softkeynumber[pos], number);
+               pte->device->softkeyicon[pos] = icon;
+               send_favorite(pos, icon, pte, label);
+               return 0;
+       }
+
+       if (size <= TEXT_LENGTH_MAX * 2) {
+               send_text(TEXT_LINE0, TEXT_NORMAL, pte, "Message :");
+               send_text(TEXT_LINE1, TEXT_NORMAL, pte, text);
+               if (size <= TEXT_LENGTH_MAX) {
+                       send_text(TEXT_LINE2, TEXT_NORMAL, pte, "");
+                       return 0;
+               }
+               memcpy(tmp, text + TEXT_LENGTH_MAX, TEXT_LENGTH_MAX);
+               tmp[TEXT_LENGTH_MAX + 1] = '\0';
+               send_text(TEXT_LINE2, TEXT_NORMAL, pte, tmp);
+               return 0;
+       }
+       send_text(TEXT_LINE0, TEXT_NORMAL, pte, text);
+       memcpy(tmp, text + TEXT_LENGTH_MAX, TEXT_LENGTH_MAX);
+       tmp[TEXT_LENGTH_MAX + 1] = '\0';
+       send_text(TEXT_LINE1, TEXT_NORMAL, pte, tmp);
+       memcpy(tmp, text + TEXT_LENGTH_MAX * 2, TEXT_LENGTH_MAX);
+       tmp[TEXT_LENGTH_MAX + 1] = '\0';
+       send_text(TEXT_LINE2, TEXT_NORMAL, pte, tmp);
+       return 0;
+}
+
+/*--- unistim_send_mwi_to_peer: Send message waiting indication ---*/
+static int unistim_send_mwi_to_peer(struct unistimsession *s, unsigned int tick)
+{
+       struct ast_event *event;
+       int new, old;
+       char *mailbox, *context;
+       struct unistim_line *peer = s->device->lines;
+
+       context = mailbox = ast_strdupa(peer->mailbox);
+       strsep(&context, "@");
+       if (ast_strlen_zero(context))
+               context = "default";
+
+       event = ast_event_get_cached(AST_EVENT_MWI,
+               AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, mailbox,
+               AST_EVENT_IE_CONTEXT, AST_EVENT_IE_PLTYPE_STR, context,
+               AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_EXISTS,
+               AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_EXISTS,
+               AST_EVENT_IE_END);
+
+       if (event) {
+               new = ast_event_get_ie_uint(event, AST_EVENT_IE_NEWMSGS);
+               old = ast_event_get_ie_uint(event, AST_EVENT_IE_OLDMSGS);
+               ast_event_destroy(event);
+       } else /* Fall back on checking the mailbox directly */
+               ast_app_inboxcount(peer->mailbox, &new, &old);
+
+       peer->nextmsgcheck = tick + TIMER_MWI;
+
+       /* Return now if it's the same thing we told them last time */
+       if (((new << 8) | (old)) == peer->lastmsgssent)
+               return 0;
+
+       peer->lastmsgssent = ((new << 8) | (old));
+       if (new == 0)
+               send_led_update(s, 0);
+       else
+               send_led_update(s, 1);
+
+       return 0;
+}
+
+/*--- unistim_new: Initiate a call in the UNISTIM channel */
+/*      called from unistim_request (calls from the pbx ) */
+static struct ast_channel *unistim_new(struct unistim_subchannel *sub, int state)
+{
+       struct ast_channel *tmp;
+       struct unistim_line *l;
+       int fmt;
+
+       if (!sub)
+               ast_log(LOG_WARNING, "subchannel null in unistim_new\n");
+       if (!sub->parent)
+               ast_log(LOG_WARNING, "no line for subchannel %p\n", sub);
+       l = sub->parent;
+       tmp = ast_channel_alloc(1, state, l->cid_num, NULL, l->accountcode, l->exten, 
+               l->context, l->amaflags, "%s-%08x", l->fullname, (int) (long) sub);
+       if (unistimdebug)
+               ast_verbose("unistim_new sub=%d (%p) chan=%p\n", sub->subtype, sub, tmp);
+       if (!tmp) {
+               ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
+               return NULL;
+       }
+
+       tmp->nativeformats = l->capability;
+       if (!tmp->nativeformats)
+               tmp->nativeformats = CAPABILITY;
+       fmt = ast_best_codec(tmp->nativeformats);
+       if (unistimdebug)
+               ast_verbose
+                       ("Best codec = %d from nativeformats %d (line cap=%d global=%d)\n", fmt,
+                        tmp->nativeformats, l->capability, CAPABILITY);
+       ast_string_field_build(tmp, name, "USTM/%s@%s-%d", l->name, l->parent->name,
+                                                  sub->subtype);
+       if ((sub->rtp) && (sub->subtype == 0)) {
+               if (unistimdebug)
+                       ast_verbose("New unistim channel with a previous rtp handle ?\n");
+               tmp->fds[0] = ast_rtp_fd(sub->rtp);
+               tmp->fds[1] = ast_rtcp_fd(sub->rtp);
+       }
+/*      tmp->type = type; */
+       ast_setstate(tmp, state);
+       if (state == AST_STATE_RING)
+               tmp->rings = 1;
+       tmp->writeformat = fmt;
+       tmp->rawwriteformat = fmt;
+       tmp->readformat = fmt;
+       tmp->rawreadformat = fmt;
+       tmp->tech_pvt = sub;
+       tmp->tech = &unistim_tech;
+       if (!ast_strlen_zero(l->language))
+               ast_string_field_set(tmp, language, l->language);
+       sub->owner = tmp;
+       ast_mutex_lock(&usecnt_lock);
+       usecnt++;
+       ast_mutex_unlock(&usecnt_lock);
+       ast_update_use_count();
+       tmp->callgroup = l->callgroup;
+       tmp->pickupgroup = l->pickupgroup;
+       ast_string_field_set(tmp, call_forward, l->parent->call_forward);
+       if (!ast_strlen_zero(l->cid_num)) {
+               char *name, *loc, *instr;
+               instr = ast_strdup(l->cid_num);
+               if (instr) {
+                       ast_callerid_parse(instr, &name, &loc);
+                       tmp->cid.cid_num = ast_strdup(loc);
+                       tmp->cid.cid_name = ast_strdup(name);
+                       free(instr);
+               }
+       }
+       tmp->priority = 1;
+       if (state != AST_STATE_DOWN) {
+               if (unistimdebug)
+                       ast_verbose("Starting pbx in unistim_new\n");
+               if (ast_pbx_start(tmp)) {
+                       ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
+                       ast_hangup(tmp);
+                       tmp = NULL;
+               }
+       }
+
+       return tmp;
+}
+
+static void *do_monitor(void *data)
+{
+       struct unistimsession *cur = NULL;
+       unsigned int dw_timeout = 0;
+       unsigned int tick;
+       int res;
+       int reloading;
+
+       /* Add an I/O event to our UDP socket */
+       if (unistimsock > -1)
+               ast_io_add(io, unistimsock, unistimsock_read, AST_IO_IN, NULL);
+
+       /* This thread monitors our UDP socket and timers */
+       for (;;) {
+               /* This loop is executed at least every IDLE_WAITus (1s) or every time a packet is received */
+               /* Looking for the smallest time-out value */
+               tick = get_tick_count();
+               dw_timeout = UINT_MAX;
+               ast_mutex_lock(&sessionlock);
+               cur = sessions;
+               DEBUG_TIMER("checking timeout for session %p with tick = %u\n", cur, tick);
+               while (cur) {
+                       DEBUG_TIMER("checking timeout for session %p timeout = %u\n", cur,
+                                               cur->timeout);
+                       /* Check if we have miss something */
+                       if (cur->timeout <= tick) {
+                               DEBUG_TIMER("Event for session %p\n", cur);
+                               /* If the queue is empty, send a ping */
+                               if (cur->last_buf_available == 0)
+                                       send_ping(cur);
+                               else {
+                                       if (send_retransmit(cur)) {
+                                               DEBUG_TIMER("The chained link was modified, restarting...\n");
+                                               cur = sessions;
+                                               dw_timeout = UINT_MAX;
+                                               continue;
+                                       }
+                               }
+                       }
+                       if (dw_timeout > cur->timeout - tick)
+                               dw_timeout = cur->timeout - tick;
+                       /* Checking if the phone is logged on for a new MWI */
+                       if (cur->device) {
+                               if ((!ast_strlen_zero(cur->device->lines->mailbox)) &&
+                                       ((tick >= cur->device->lines->nextmsgcheck))) {
+                                       DEBUG_TIMER("Checking mailbox for MWI\n");
+                                       unistim_send_mwi_to_peer(cur, tick);
+                                       break;
+                               }
+                       }
+                       cur = cur->next;
+               }
+               ast_mutex_unlock(&sessionlock);
+               DEBUG_TIMER("Waiting for %dus\n", dw_timeout);
+               res = dw_timeout;
+               /* We should not wait more than IDLE_WAIT */
+               if ((res < 0) || (res > IDLE_WAIT))
+                       res = IDLE_WAIT;
+               /* Wait for UDP messages for a maximum of res us */
+               res = ast_io_wait(io, res);     /* This function will call unistimsock_read if a packet is received */
+               /* Check for a reload request */
+               ast_mutex_lock(&unistim_reload_lock);
+               reloading = unistim_reloading;
+               unistim_reloading = 0;
+               ast_mutex_unlock(&unistim_reload_lock);
+               if (reloading) {
+                       if (option_verbose > 0)
+                               ast_verbose(VERBOSE_PREFIX_1 "Reloading unistim.conf...\n");
+                       reload_config();
+               }
+       }
+       /* Never reached */
+       return NULL;
+}
+
+/*--- restart_monitor: Start the channel monitor thread ---*/
+static int restart_monitor(void)
+{
+       pthread_attr_t attr;
+       /* If we're supposed to be stopped -- stay stopped */
+       if (monitor_thread == AST_PTHREADT_STOP)
+               return 0;
+       if (ast_mutex_lock(&monlock)) {
+               ast_log(LOG_WARNING, "Unable to lock monitor\n");
+               return -1;
+       }
+       if (monitor_thread == pthread_self()) {
+               ast_mutex_unlock(&monlock);
+               ast_log(LOG_WARNING, "Cannot kill myself\n");
+               return -1;
+       }
+       if (monitor_thread != AST_PTHREADT_NULL) {
+               /* Wake up the thread */
+               pthread_kill(monitor_thread, SIGURG);
+       } else {
+               pthread_attr_init(&attr);
+               pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+               /* Start a new monitor */
+               if (ast_pthread_create(&monitor_thread, &attr, do_monitor, NULL) < 0) {
+                       ast_mutex_unlock(&monlock);
+                       ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
+                       return -1;
+               }
+       }
+       ast_mutex_unlock(&monlock);
+       return 0;
+}
+
+/*--- unistim_request: PBX interface function ---*/
+/* UNISTIM calls initiated by the PBX arrive here */
+static struct ast_channel *unistim_request(const char *type, int format, void *data,
+                                                                                  int *cause)
+{
+       int oldformat;
+       struct unistim_subchannel *sub;
+       struct ast_channel *tmpc = NULL;
+       char tmp[256];
+       char *dest = data;
+
+       oldformat = format;
+       format &= CAPABILITY;
+       ast_log(LOG_NOTICE,
+                       "Asked to get a channel of format %s while capability is %d result : %s (%d) \n",
+                       ast_getformatname(oldformat), CAPABILITY, ast_getformatname(format), format);
+       if (!format) {
+               ast_log(LOG_NOTICE,
+                               "Asked to get a channel of unsupported format %s while capability is %s\n",
+                               ast_getformatname(oldformat), ast_getformatname(CAPABILITY));
+               return NULL;
+       }
+
+       ast_copy_string(tmp, dest, sizeof(tmp));
+       if (ast_strlen_zero(tmp)) {
+               ast_log(LOG_NOTICE, "Unistim channels require a device\n");
+               return NULL;
+       }
+
+       sub = find_subchannel_by_name(tmp);
+       if (!sub) {
+               ast_log(LOG_NOTICE, "No available lines on: %s\n", dest);
+               *cause = AST_CAUSE_CONGESTION;
+               return NULL;
+       }
+
+       if (option_verbose > 2)
+               ast_verbose(VERBOSE_PREFIX_3 "unistim_request(%s)\n", tmp);
+       /* Busy ? */
+       if (sub->owner) {
+               if (unistimdebug)
+                       ast_verbose("Can't create channel : Busy !\n");
+               *cause = AST_CAUSE_BUSY;
+               return NULL;
+       }
+       sub->parent->capability = format;
+       tmpc = unistim_new(sub, AST_STATE_DOWN);
+       if (!tmpc)
+               ast_log(LOG_WARNING, "Unable to make channel for '%s'\n", tmp);
+       if (unistimdebug)
+               ast_verbose("unistim_request owner = %p\n", sub->owner);
+       restart_monitor();
+
+       /* and finish */
+       return tmpc;
+}
+
+static int unistim_info(int fd, int argc, char *argv[])
+{
+       struct unistim_device *device = devices;
+       struct unistim_line *line;
+       struct unistim_subchannel *sub;
+       struct unistimsession *s;
+       int i;
+       struct ast_channel *tmp;
+
+       if (argc != 2)
+               return RESULT_SHOWUSAGE;
+       ast_cli(fd, "Dumping internal structures :\ndevice\n->line\n-->sub\n");
+       while (device) {
+               ast_cli(fd, "\nname=%s id=%s line=%p ha=%p sess=%p device=%p\n",
+                               device->name, device->id, device->lines, device->ha, device->session,
+                               device);
+               line = device->lines;
+               while (line) {
+                       ast_cli(fd,
+                                       "->name=%s fullname=%s exten=%s callid=%s cap=%d device=%p line=%p\n",
+                                       line->name, line->fullname, line->exten, line->cid_num,
+                                       line->capability, line->parent, line);
+                       for (i = 0; i < MAX_SUBS; i++) {
+                               sub = line->subs[i];
+                               if (!sub)
+                                       continue;
+                               if (!sub->owner)
+                                       tmp = (void *) -42;
+                               else
+                                       tmp = sub->owner->_bridge;
+                               if (sub->subtype != i)
+                                       ast_cli(fd, "Warning ! subchannel->subs[%d] have a subtype=%d\n", i,
+                                                       sub->subtype);
+                               ast_cli(fd,
+                                               "-->subtype=%d chan=%p rtp=%p bridge=%p line=%p alreadygone=%d\n",
+                                               sub->subtype, sub->owner, sub->rtp, tmp, sub->parent,
+                                               sub->alreadygone);
+                       }
+                       line = line->next;
+               }
+               device = device->next;
+       }
+       ast_cli(fd, "\nSessions:\n");
+       ast_mutex_lock(&sessionlock);
+       s = sessions;
+       while (s) {
+               ast_cli(fd,
+                               "sin=%s timeout=%u state=%d macaddr=%s device=%p session=%p\n",
+                               ast_inet_ntoa(s->sin.sin_addr), s->timeout, s->state, s->macaddr,
+                               s->device, s);
+               s = s->next;
+       }
+       ast_mutex_unlock(&sessionlock);
+       return RESULT_SUCCESS;
+}
+static int unistim_sp(int fd, int argc, char *argv[])
+{
+       BUFFSEND;
+       struct unistim_subchannel *sub;
+       int i, j = 0, len;
+       unsigned char c, cc;
+       char tmp[256];
+
+       if (argc != 4)
+               return RESULT_SHOWUSAGE;
+       if (strlen(argv[2]) < 9)
+               return RESULT_SHOWUSAGE;
+       len = strlen(argv[3]);
+       if (len % 2)
+               return RESULT_SHOWUSAGE;
+       ast_copy_string(tmp, argv[2] + 5, sizeof(tmp));
+       sub = find_subchannel_by_name(tmp);
+       if (!sub) {
+               ast_cli(fd, "Can't find '%s'\n", tmp);
+               return RESULT_SUCCESS;
+       }
+       if (!sub->parent->parent->session) {
+               ast_cli(fd, "'%s' is not connected\n", tmp);
+               return RESULT_SUCCESS;
+       }
+       ast_cli(fd, "Sending '%s' to %s (%p)\n", argv[3], tmp, sub->parent->parent->session);
+       for (i = 0; i < len; i++) {
+               c = argv[3][i];
+               if (c >= 'a')
+                       c -= 'a' - 10;
+               else
+                       c -= '0';
+               i++;
+               cc = argv[3][i];
+               if (cc >= 'a')
+                       cc -= 'a' - 10;
+               else
+                       cc -= '0';
+               tmp[j++] = (c << 4) | cc;
+       }
+       memcpy(buffsend + SIZE_HEADER, tmp, j);
+       send_client(SIZE_HEADER + j, buffsend, sub->parent->parent->session);
+       return RESULT_SUCCESS;
+}
+
+static int unistim_do_debug(int fd, int argc, char *argv[])
+{
+       if (argc != 2)
+               return RESULT_SHOWUSAGE;
+       unistimdebug = 1;
+       ast_cli(fd, "UNISTIM Debugging Enabled\n");
+       return RESULT_SUCCESS;
+}
+
+static int unistim_no_debug(int fd, int argc, char *argv[])
+{
+       if (argc != 3)
+               return RESULT_SHOWUSAGE;
+       unistimdebug = 0;
+       ast_cli(fd, "UNISTIM Debugging Disabled\n");
+       return RESULT_SUCCESS;
+}
+
+static char info_usage[] = "Usage: unistim info\n" "       Dump internal structures.\n";
+
+static char debug_usage[] = "Usage: unistim debug\n" "       Display debug messages.\n";
+
+static char no_debug_usage[] =
+       "Usage: unistim no debug\n" "       Stop debug messages.\n";
+static char unistim_reload_usage[] =
+       "Usage: unistim reload\n" "       Reloads UNISTIM configuration from unistim.conf\n";
+
+static char sp_usage[] =
+       "Usage: unistim sp USTM/line@name hexa\n"
+       "       unistim sp USTM/1000@hans 19040004\n";
+static struct ast_cli_entry unistim_cli[] = {
+       {{"unistim", "reload", NULL}, unistim_reload,"Reload UNISTIM configuration", unistim_reload_usage},
+       {{ "unistim", "info", NULL}, unistim_info, "Show UNISTIM info",
+info_usage },
+       {{ "unistim", "sp", NULL}, unistim_sp,"Send packet (for reverse engineering)", sp_usage },
+       {{"unistim", "debug", NULL}, unistim_do_debug, "Enable UNISTIM debugging",debug_usage },
+       {{"unistim", "no", "debug", NULL}, unistim_no_debug,"Disable UNISTIM debugging", no_debug_usage},
+};
+
+
+
+static void unquote(char *out, const char *src, int maxlen)
+{
+       int len = strlen(src);
+       if (!len)
+               return;
+       if ((len > 1) && src[0] == '\"') {
+               /* This is a quoted string */
+               src++;
+               /* Don't take more than what's there */
+               len--;
+               if (maxlen > len - 1)
+                       maxlen = len - 1;
+               memcpy(out, src, maxlen);
+               ((char *) out)[maxlen] = '\0';
+       } else
+               memcpy(out, src, maxlen);
+       return;
+}
+
+static int ParseBookmark(const char *text, struct unistim_device *d)
+{
+       char line[256];
+       char *at;
+       char *number;
+       char *icon;
+       int p;
+       int len = strlen(text);
+
+       ast_copy_string(line, text, sizeof(line));
+       /* Position specified ? */
+       if ((len > 2) && (line[1] == '@')) {
+               p = line[0];
+               if ((p >= '0') && (p <= '5'))
+                       p -= '0';
+               else {
+                       ast_log(LOG_WARNING,
+                                       "Invalid position for bookmark : must be between 0 and 5\n");
+                       return 0;
+               }
+               if (d->softkeyicon[p] != 0) {
+                       ast_log(LOG_WARNING, "Invalid position %d for bookmark : already used\n:", p);
+                       return 0;
+               }
+               memmove(line, line + 2, sizeof(line));
+       } else {
+               /* No position specified, looking for a free slot */
+               for (p = 0; p <= 5; p++) {
+                       if (!d->softkeyicon[p])
+                               break;
+               }
+               if (p > 5) {
+                       ast_log(LOG_WARNING, "No more free bookmark position\n");
+                       return 0;
+               }
+       }
+       at = strchr(line, '@');
+       if (!at) {
+               ast_log(LOG_NOTICE, "Bookmark entry '%s' has no @ (at) sign!\n", text);
+               return 0;
+       }
+       *at = '\0';
+       at++;
+       number = at;
+       at = strchr(at, '@');
+       if (ast_strlen_zero(number)) {
+               ast_log(LOG_NOTICE, "Bookmark entry '%s' has no number\n", text);
+               return 0;
+       }
+       if (ast_strlen_zero(line)) {
+               ast_log(LOG_NOTICE, "Bookmark entry '%s' has no description\n", text);
+               return 0;
+       }
+
+       at = strchr(number, '@');
+       if (!at)
+               d->softkeyicon[p] = FAV_ICON_SHARP;     /* default icon */
+       else {
+               *at = '\0';
+               at++;
+               icon = at;
+               if (ast_strlen_zero(icon)) {
+                       ast_log(LOG_NOTICE, "Bookmark entry '%s' has no icon value\n", text);
+                       return 0;
+               }
+               if (strncmp(icon, "USTM/", 5))
+                       d->softkeyicon[p] = atoi(icon);
+               else {
+                       d->softkeyicon[p] = 1;
+                       ast_copy_string(d->softkeydevice[p], icon + 5, sizeof(d->softkeydevice[p]));
+               }
+       }
+       ast_copy_string(d->softkeylabel[p], line, sizeof(d->softkeylabel[p]));
+       ast_copy_string(d->softkeynumber[p], number, sizeof(d->softkeynumber[p]));
+       if (unistimdebug)
+               ast_verbose("New bookmark at pos %d label='%s' number='%s' icon=%x\n",
+                                       p, d->softkeylabel[p], d->softkeynumber[p], d->softkeyicon[p]);
+       return 1;
+}
+
+/* Looking for dynamic icons entries in bookmarks */
+static void finish_bookmark(void)
+{
+       struct unistim_device *d = devices;
+       int i;
+       while (d) {
+               for (i = 0; i < 6; i++) {
+                       if (d->softkeyicon[i] == 1) {   /* Something for us */
+                               struct unistim_device *d2 = devices;
+                               while (d2) {
+                                       if (!strcmp(d->softkeydevice[i], d2->name)) {
+                                               d->sp[i] = d2;
+                                               d->softkeyicon[i] = 0;
+                                               break;
+                                       }
+                                       d2 = d2->next;
+                               }
+                               if (d->sp[i] == NULL)
+                                       ast_log(LOG_NOTICE, "Bookmark entry with device %s not found\n",
+                                                       d->softkeydevice[i]);
+                       }
+               }
+               d = d->next;
+       }
+}
+
+static struct unistim_device *build_device(const char *cat, const struct ast_variable *v)
+{
+       struct unistim_device *d;
+       struct unistim_line *l = NULL;
+       int create = 1;
+       int nbsoftkey, dateformat, timeformat, callhistory;
+       char linelabel[AST_MAX_EXTENSION];
+       char context[AST_MAX_EXTENSION];
+       char ringvolume, ringstyle;
+
+       /* First, we need to know if we already have this name in our list */
+       /* Get a lock for the device chained list */
+       ast_mutex_lock(&devicelock);
+       d = devices;
+       while (d) {
+               if (!strcmp(d->name, cat)) {
+                       /* Yep, we alreay have this one */
+                       if (unistimsock < 0) {
+                               /* It's a dupe */
+                               ast_log(LOG_WARNING, "Duplicate entry found (%s), ignoring.\n", cat);
+                               ast_mutex_unlock(&devicelock);
+                               return NULL;
+                       }
+                       /* we're reloading right now */
+                       create = 0;
+                       l = d->lines;
+                       break;
+               }
+               d = d->next;
+       }
+       ast_mutex_unlock(&devicelock);
+       if (create) {
+               if (!(d = ast_calloc(1, sizeof(*d))))
+                       return NULL;
+
+               if (!(l = ast_calloc(1, sizeof(*l)))) {
+                       free(d);
+                       return NULL;
+               }
+               ast_copy_string(d->name, cat, sizeof(d->name));
+       }
+       ast_copy_string(context, DEFAULTCONTEXT, sizeof(context));
+       d->contrast = -1;
+       d->output = OUTPUT_HANDSET;
+       d->previous_output = OUTPUT_HANDSET;
+       d->volume = VOLUME_LOW;
+       d->mute = MUTE_OFF;
+       linelabel[0] = '\0';
+       dateformat = 1;
+       timeformat = 1;
+       ringvolume = 2;
+       callhistory = 1;
+       ringstyle = 3;
+       nbsoftkey = 0;
+       while (v) {
+               if (!strcasecmp(v->name, "rtp_port"))
+                       d->rtp_port = atoi(v->value);
+               else if (!strcasecmp(v->name, "rtp_method"))
+                       d->rtp_method = atoi(v->value);
+               else if (!strcasecmp(v->name, "status_method"))
+                       d->status_method = atoi(v->value);
+               else if (!strcasecmp(v->name, "device"))
+                       ast_copy_string(d->id, v->value, sizeof(d->id));
+               else if (!strcasecmp(v->name, "tn"))
+                       ast_copy_string(d->extension_number, v->value, sizeof(d->extension_number));
+               else if (!strcasecmp(v->name, "permit") || !strcasecmp(v->name, "deny"))
+                       d->ha = ast_append_ha(v->name, v->value, d->ha, NULL);
+               else if (!strcasecmp(v->name, "context"))
+                       ast_copy_string(context, v->value, sizeof(context));
+               else if (!strcasecmp(v->name, "maintext0"))
+                       unquote(d->maintext0, v->value, sizeof(d->maintext0) - 1);
+               else if (!strcasecmp(v->name, "maintext1"))
+                       unquote(d->maintext1, v->value, sizeof(d->maintext1) - 1);
+               else if (!strcasecmp(v->name, "maintext2"))
+                       unquote(d->maintext2, v->value, sizeof(d->maintext2) - 1);
+               else if (!strcasecmp(v->name, "titledefault"))
+                       unquote(d->titledefault, v->value, sizeof(d->titledefault) - 1);
+               else if (!strcasecmp(v->name, "dateformat"))
+                       dateformat = atoi(v->value);
+               else if (!strcasecmp(v->name, "timeformat"))
+                       timeformat = atoi(v->value);
+               else if (!strcasecmp(v->name, "contrast")) {
+                       d->contrast = atoi(v->value);
+                       if ((d->contrast < 0) || (d->contrast > 15)) {
+                               ast_log(LOG_WARNING, "constrast must be beetween 0 and 15");
+                               d->contrast = 8;
+                       }
+               } else if (!strcasecmp(v->name, "nat"))
+                       d->nat = ast_true(v->value);
+               else if (!strcasecmp(v->name, "ringvolume"))
+                       ringvolume = atoi(v->value);
+               else if (!strcasecmp(v->name, "ringstyle"))
+                       ringstyle = atoi(v->value);
+               else if (!strcasecmp(v->name, "callhistory"))
+                       callhistory = atoi(v->value);
+               else if (!strcasecmp(v->name, "callerid")) {
+                       if (!strcasecmp(v->value, "asreceived"))
+                               l->cid_num[0] = '\0';
+                       else
+                               ast_copy_string(l->cid_num, v->value, sizeof(l->cid_num));
+               } else if (!strcasecmp(v->name, "language"))
+                       ast_copy_string(l->language, v->value, sizeof(l->language));
+               else if (!strcasecmp(v->name, "country"))
+                       ast_copy_string(d->country, v->value, sizeof(d->country));
+               else if (!strcasecmp(v->name, "accountcode"))
+                       ast_copy_string(l->accountcode, v->value, sizeof(l->accountcode));
+               else if (!strcasecmp(v->name, "amaflags")) {
+                       int y;
+                       y = ast_cdr_amaflags2int(v->value);
+                       if (y < 0)
+                               ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value,
+                                               v->lineno);
+                       else
+                               l->amaflags = y;
+               } else if (!strcasecmp(v->name, "musiconhold"))
+                       ast_copy_string(l->musicclass, v->value, sizeof(l->musicclass));
+               else if (!strcasecmp(v->name, "callgroup"))
+                       l->callgroup = ast_get_group(v->value);
+               else if (!strcasecmp(v->name, "pickupgroup"))
+                       l->pickupgroup = ast_get_group(v->value);
+               else if (!strcasecmp(v->name, "mailbox"))
+                       ast_copy_string(l->mailbox, v->value, sizeof(l->mailbox));
+               else if (!strcasecmp(v->name, "linelabel"))
+                       unquote(linelabel, v->value, sizeof(linelabel) - 1);
+               else if (!strcasecmp(v->name, "extension")) {
+                       if (!strcasecmp(v->value, "none"))
+                               d->extension = EXTENSION_NONE;
+                       else if (!strcasecmp(v->value, "ask"))
+                               d->extension = EXTENSION_ASK;
+                       else if (!strcasecmp(v->value, "line"))
+                               d->extension = EXTENSION_LINE;
+                       else
+                               ast_log(LOG_WARNING, "Unknown extension option.\n");
+               } else if (!strcasecmp(v->name, "bookmark")) {
+                       if (nbsoftkey > 5)
+                               ast_log(LOG_WARNING,
+                                               "More than 6 softkeys defined. Ignoring new entries.\n");
+                       else {
+                               if (ParseBookmark(v->value, d))
+                                       nbsoftkey++;
+                       }
+               } else if (!strcasecmp(v->name, "line")) {
+                       int len = strlen(linelabel);
+
+                       if (nbsoftkey) {
+                               ast_log(LOG_WARNING,
+                                               "You must use bookmark AFTER line=>. Only one line is supported in this version\n");
+                               if (create) {
+                                       free(d);
+                                       free(l);
+                               }
+                               return NULL;
+                       }
+                       if (create) {
+                               ast_mutex_init(&l->lock);
+                       } else {
+                               d->to_delete = 0;
+                               /* reset bookmarks */
+                               memset(d->softkeylabel, 0, sizeof(d->softkeylabel));
+                               memset(d->softkeynumber, 0, sizeof(d->softkeynumber));
+                               memset(d->softkeyicon, 0, sizeof(d->softkeyicon));
+                               memset(d->softkeydevice, 0, sizeof(d->softkeydevice));
+                               memset(d->sp, 0, sizeof(d->sp));
+                       }
+                       ast_copy_string(l->name, v->value, sizeof(l->name));
+                       snprintf(l->fullname, sizeof(l->fullname), "USTM/%s@%s", l->name, d->name);
+                       d->softkeyicon[0] = FAV_ICON_ONHOOK_BLACK;
+                       if (!len)                      /* label is undefined ? */
+                               ast_copy_string(d->softkeylabel[0], v->value, sizeof(d->softkeylabel[0]));
+                       else {
+                               if ((len > 2) && (linelabel[1] == '@')) {
+                                       d->softkeylinepos = linelabel[0];
+                                       if ((d->softkeylinepos >= '0') && (d->softkeylinepos <= '5')) {
+                                               d->softkeylinepos -= '0';
+                                               d->softkeyicon[0] = 0;
+                                       } else {
+                                               ast_log(LOG_WARNING,
+                                                               "Invalid position for linelabel : must be between 0 and 5\n");
+                                               d->softkeylinepos = 0;
+                                       }
+                                       ast_copy_string(d->softkeylabel[d->softkeylinepos], linelabel + 2,
+                                                                       sizeof(d->softkeylabel[d->softkeylinepos]));
+                                       d->softkeyicon[d->softkeylinepos] = FAV_ICON_ONHOOK_BLACK;
+                               } else
+                                       ast_copy_string(d->softkeylabel[0], linelabel,
+                                                                       sizeof(d->softkeylabel[0]));
+                       }
+                       nbsoftkey++;
+                       ast_copy_string(l->context, context, sizeof(l->context));
+                       if (!ast_strlen_zero(l->mailbox)) {
+                               if (unistimdebug)
+                                       ast_verbose(VERBOSE_PREFIX_3 "Setting mailbox '%s' on %s@%s\n",
+                                                               l->mailbox, d->name, l->name);
+                       }
+
+                       l->capability = CAPABILITY;
+                       l->parent = d;
+
+                       if (create) {
+                               if (!alloc_sub(l, SUB_REAL)) {
+                                       ast_mutex_destroy(&l->lock);
+                                       free(l);
+                                       free(d);
+                                       return NULL;
+                               }
+                               l->next = d->lines;
+                               d->lines = l;
+                       }
+               } else
+                       ast_log(LOG_WARNING, "Don't know keyword '%s' at line %d\n", v->name,
+                                       v->lineno);
+               v = v->next;
+       }
+       d->ringvolume = ringvolume;
+       d->ringstyle = ringstyle;
+       d->callhistory = callhistory;
+       d->tz = ast_get_indication_zone(d->country);
+       if ((d->tz == NULL) && !ast_strlen_zero(d->country))
+               ast_log(LOG_WARNING, "Country '%s' was not found in indications.conf\n",
+                               d->country);
+       d->datetimeformat = 56 + (dateformat * 4);
+       d->datetimeformat += timeformat;
+       if (!d->lines) {
+               ast_log(LOG_ERROR, "An Unistim device must have at least one line!\n");
+               ast_mutex_destroy(&l->lock);
+               free(l);
+               free(d);
+               return NULL;
+       }
+       if ((autoprovisioning == AUTOPROVISIONING_TN) &&
+               (!ast_strlen_zero(d->extension_number))) {
+               d->extension = EXTENSION_TN;
+               if (!ast_strlen_zero(d->id))
+                       ast_log(LOG_WARNING,
+                                       "tn= and device= can't be used together. Ignoring device= entry\n");
+               d->id[0] = 'T';          /* magic : this is a tn entry */
+               ast_copy_string((d->id) + 1, d->extension_number, sizeof(d->id) - 1);
+               d->extension_number[0] = '\0';
+       } else if (ast_strlen_zero(d->id)) {
+               if (strcmp(d->name, "template")) {
+                       ast_log(LOG_ERROR, "You must specify the mac address with device=\n");
+                       ast_mutex_destroy(&l->lock);
+                       free(l);
+                       free(d);
+                       return NULL;
+               } else
+                       strcpy(d->id, "000000000000");
+       }
+       if (!d->rtp_port)
+               d->rtp_port = 10000;
+       if (d->contrast == -1)
+               d->contrast = 8;
+       if (ast_strlen_zero(d->maintext0))
+               strcpy(d->maintext0, "Welcome");
+       if (ast_strlen_zero(d->maintext1))
+               strcpy(d->maintext1, d->name);
+       if (ast_strlen_zero(d->titledefault)) {
+               struct tm *stm;
+               time_t cur_time = time(0);
+
+               if ((stm = localtime(&cur_time)) == 0) {
+                       display_last_error("Error in localtime()");
+                       ast_copy_string(d->titledefault, "UNISTIM for*", 12);
+               } else {
+                       if (strlen(stm->tm_zone) < 4) {
+                               strcpy(d->titledefault, "TimeZone ");
+                               strcat(d->titledefault, stm->tm_zone);
+                       } else if (strlen(stm->tm_zone) < 9) {
+                               strcpy(d->titledefault, "TZ ");
+                               strcat(d->titledefault, stm->tm_zone);
+                       } else
+                               ast_copy_string(d->titledefault, stm->tm_zone, 12);
+               }
+       }
+       /* Update the chained link if it's a new device */
+       if (create) {
+               ast_mutex_lock(&devicelock);
+               d->next = devices;
+               devices = d;
+               ast_mutex_unlock(&devicelock);
+               if (option_verbose > 2)
+                       ast_verbose(VERBOSE_PREFIX_3 "Added device '%s'\n", d->name);
+       } else {
+               if (option_verbose > 2)
+                       ast_verbose(VERBOSE_PREFIX_3 "Device '%s' reloaded\n", d->name);
+       }
+       return d;
+}
+
+/*--- reload_config: Re-read unistim.conf config file ---*/
+static int reload_config(void)
+{
+       struct ast_config *cfg;
+       struct ast_variable *v;
+       struct ast_hostent ahp;
+       struct hostent *hp;
+       struct sockaddr_in bindaddr = { 0, };
+       char *config = "unistim.conf";
+       char *cat;
+       struct unistim_device *d;
+       const int reuseFlag = 1;
+       struct unistimsession *s;
+       struct ast_flags config_flags = { 0, };
+
+       cfg = ast_config_load(config, config_flags);
+       /* We *must* have a config file otherwise stop immediately */
+       if (!cfg) {
+               ast_log(LOG_ERROR, "Unable to load config %s\n", config);
+               return -1;
+       }
+
+       unistim_keepalive = 120;
+       unistim_port = 0;
+       v = ast_variable_browse(cfg, "general");
+       while (v) {
+               if (!strcasecmp(v->name, "keepalive"))
+                       unistim_keepalive = atoi(v->value);
+               else if (!strcasecmp(v->name, "port"))
+                       unistim_port = atoi(v->value);
+               else if (!strcasecmp(v->name, "autoprovisioning")) {
+                       if (!strcasecmp(v->value, "no"))
+                               autoprovisioning = AUTOPROVISIONING_NO;
+                       else if (!strcasecmp(v->value, "yes"))
+                               autoprovisioning = AUTOPROVISIONING_YES;
+                       else if (!strcasecmp(v->value, "db"))
+                               autoprovisioning = AUTOPROVISIONING_DB;
+                       else if (!strcasecmp(v->value, "tn"))
+                               autoprovisioning = AUTOPROVISIONING_TN;
+                       else
+                               ast_log(LOG_WARNING, "Unknown autoprovisioning option.\n");
+               } else if (!strcasecmp(v->name, "public_ip")) {
+                       if (!ast_strlen_zero(v->value)) {
+                               if (!(hp = ast_gethostbyname(v->value, &ahp)))
+                                       ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
+                               else {
+                                       memcpy(&public_ip.sin_addr, hp->h_addr, sizeof(public_ip.sin_addr));
+                                       public_ip.sin_family = AF_INET;
+                               }
+                       }
+               }
+               v = v->next;
+       }
+       if ((unistim_keepalive < 10) ||
+               (unistim_keepalive >
+                255 - (((NB_MAX_RETRANSMIT + 1) * RETRANSMIT_TIMER) / 1000))) {
+               ast_log(LOG_ERROR, "keepalive is invalid in %s\n", config);
+               return -1;
+       }
+       packet_send_ping[4] =
+               unistim_keepalive + (((NB_MAX_RETRANSMIT + 1) * RETRANSMIT_TIMER) / 1000);
+       if ((unistim_port < 1) || (unistim_port > 65535)) {
+               ast_log(LOG_ERROR, "port is not set or invalid in %s\n", config);
+               return -1;
+       }
+       unistim_keepalive *= 1000;
+
+       ast_mutex_lock(&devicelock);
+       d = devices;
+       while (d) {
+               if (d->to_delete >= 0)
+                       d->to_delete = 1;
+               d = d->next;
+       }
+       ast_mutex_unlock(&devicelock);
+       /* load the device sections */
+       cat = ast_category_browse(cfg, NULL);
+       while (cat) {
+               if (strcasecmp(cat, "general")) {
+                       d = build_device(cat, ast_variable_browse(cfg, cat));
+               }
+               cat = ast_category_browse(cfg, cat);
+       }
+       ast_mutex_lock(&devicelock);
+       d = devices;
+       while (d) {
+               if (d->to_delete) {
+                       int i;
+
+                       if (unistimdebug)
+                               ast_verbose("Removing device '%s'\n", d->name);
+                       if (!d->lines) {
+                               ast_log(LOG_ERROR, "Device '%s' without a line !, aborting\n", d->name);
+                               return 0;
+                       }
+                       if (!d->lines->subs[0]) {
+                               ast_log(LOG_ERROR, "Device '%s' without a subchannel !, aborting\n",
+                                               d->name);
+                               return 0;
+                       }
+                       if (d->lines->subs[0]->owner) {
+                               ast_log(LOG_WARNING,
+                                               "Device '%s' was not deleted : a call is in progress. Try again later.\n",
+                                               d->name);
+                               d = d->next;
+                               continue;
+                       }
+                       ast_mutex_destroy(&d->lines->subs[0]->lock);
+                       free(d->lines->subs[0]);
+                       for (i = 1; i < MAX_SUBS; i++) {
+                               if (d->lines->subs[i]) {
+                                       ast_log(LOG_WARNING,
+                                                       "Device '%s' with threeway call subchannels allocated, aborting.\n",
+                                                       d->name);
+                                       break;
+                               }
+                       }
+                       if (i < MAX_SUBS) {
+                               d = d->next;
+                               continue;
+                       }
+                       ast_mutex_destroy(&d->lines->lock);
+                       free(d->lines);
+                       if (d->session) {
+                               if (sessions == d->session)
+                                       sessions = d->session->next;
+                               else {
+                                       s = sessions;
+                                       while (s) {
+                                               if (s->next == d->session) {
+                                                       s->next = d->session->next;
+                                                       break;
+                                               }
+                                               s = s->next;
+                                       }
+                               }
+                               ast_mutex_destroy(&d->session->lock);
+                               free(d->session);
+                       }
+                       if (devices == d)
+                               devices = d->next;
+                       else {
+                               struct unistim_device *d2 = devices;
+                               while (d2) {
+                                       if (d2->next == d) {
+                                               d2->next = d->next;
+                                               break;
+                                       }
+                                       d2 = d2->next;
+                               }
+                       }
+                       free(d);
+                       d = devices;
+                       continue;
+               }
+               d = d->next;
+       }
+       finish_bookmark();
+       ast_mutex_unlock(&devicelock);
+       ast_config_destroy(cfg);
+       ast_mutex_lock(&sessionlock);
+       s = sessions;
+       while (s) {
+               if (s->device)
+                       refresh_all_favorite(s);
+               s = s->next;
+       }
+       ast_mutex_unlock(&sessionlock);
+       /* We don't recreate a socket when reloading (locks would be necessary). */
+       if (unistimsock > -1)
+               return 0;
+       bindaddr.sin_addr.s_addr = INADDR_ANY;
+       bindaddr.sin_port = htons(unistim_port);
+       bindaddr.sin_family = AF_INET;
+       unistimsock = socket(AF_INET, SOCK_DGRAM, 0);
+       if (unistimsock < 0) {
+               ast_log(LOG_WARNING, "Unable to create UNISTIM socket: %s\n", strerror(errno));
+               return -1;
+       }
+#ifdef HAVE_PKTINFO
+       {
+               const int pktinfoFlag = 1;
+               setsockopt(unistimsock, IPPROTO_IP, IP_PKTINFO, &pktinfoFlag,
+                                  sizeof(pktinfoFlag));
+       }
+#else
+       if (public_ip.sin_family == 0) {
+               ast_log(LOG_WARNING,
+                               "Your OS does not support IP_PKTINFO, you must set public_ip.\n");
+               unistimsock = -1;
+               return -1;
+       }
+#endif
+       setsockopt(unistimsock, SOL_SOCKET, SO_REUSEADDR, (const char *) &reuseFlag,
+                          sizeof(reuseFlag));
+       if (bind(unistimsock, (struct sockaddr *) &bindaddr, sizeof(bindaddr)) < 0) {
+               ast_log(LOG_WARNING, "Failed to bind to %s:%d: %s\n",
+                               ast_inet_ntoa(bindaddr.sin_addr), htons(bindaddr.sin_port),
+                               strerror(errno));
+               close(unistimsock);
+               unistimsock = -1;
+       } else {
+               if (option_verbose > 1) {
+                       ast_verbose(VERBOSE_PREFIX_2
+                                               "UNISTIM Listening on %s:%d\n",
+                                               ast_inet_ntoa(bindaddr.sin_addr), htons(bindaddr.sin_port));
+               }
+       }
+       return 0;
+}
+
+static enum ast_rtp_get_result unistim_get_vrtp_peer(struct ast_channel *chan, 
+       struct ast_rtp **rtp)
+{
+       return AST_RTP_TRY_NATIVE;
+}
+
+static enum ast_rtp_get_result unistim_get_rtp_peer(struct ast_channel *chan, 
+       struct ast_rtp **rtp)
+{
+       struct unistim_subchannel *sub;
+       enum ast_rtp_get_result res = AST_RTP_GET_FAILED;
+
+       if (unistimdebug)
+               ast_verbose("unistim_get_rtp_peer called\n");
+               
+       sub = chan->tech_pvt;
+       if (sub && sub->rtp) {
+               *rtp = sub->rtp;
+               res = AST_RTP_TRY_NATIVE;
+       }
+
+       return res;
+}
+
+static int unistim_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp, 
+       struct ast_rtp *vrtp, struct ast_rtp *trtp, int codecs, int nat_active)
+{
+       struct unistim_subchannel *sub;
+
+       if (unistimdebug)
+               ast_verbose("unistim_set_rtp_peer called\n");
+
+       sub = chan->tech_pvt;
+
+       if (sub)
+               return 0;
+
+       return -1;
+}
+
+static struct ast_rtp_protocol unistim_rtp = {
+       .type = type,
+       .get_rtp_info = unistim_get_rtp_peer,
+       .get_vrtp_info = unistim_get_vrtp_peer,
+       .set_rtp_peer = unistim_set_rtp_peer,
+};
+
+/*! \brief --- unistim_reload: Force reload of module from cli ---
+ * Runs in the asterisk main thread, so don't do anything useful
+ * but setting a flag and waiting for do_monitor to do the job
+ * in our thread */
+static int unistim_reload(int fd, int argc, char *argv[])
+{
+       if (unistimdebug)
+               ast_verbose("reload unistim\n");
+
+       ast_mutex_lock(&unistim_reload_lock);
+       if (!unistim_reloading)
+               unistim_reloading = 1;
+       ast_mutex_unlock(&unistim_reload_lock);
+
+       restart_monitor();
+
+       return 0;
+}
+
+
+/*--- load_module: PBX load module - initialization ---*/
+int load_module(void)
+{
+       int res;
+
+       if (!(buff = ast_malloc(SIZE_PAGE)))
+               goto buff_failed;
+
+       io = io_context_create();
+       if (!io) {
+               ast_log(LOG_ERROR, "Failed to allocate IO context\n");
+               goto io_failed;
+       }
+
+       sched = sched_context_create();
+       if (!sched) {
+               ast_log(LOG_ERROR, "Failed to allocate scheduler context\n");
+               goto sched_failed;
+       }
+
+       res = reload_config();
+       if (res)
+               goto reload_failed;
+
+       /* Make sure we can register our unistim channel type */
+       if (ast_channel_register(&unistim_tech)) {
+               ast_log(LOG_ERROR, "Unable to register channel type '%s'\n", type);
+               goto chanreg_failed;
+       } 
+
+       ast_rtp_proto_register(&unistim_rtp);
+
+       ast_cli_register_multiple(unistim_cli, ARRAY_LEN(unistim_cli));
+
+       restart_monitor();
+
+       return AST_MODULE_LOAD_SUCCESS;
+
+chanreg_failed:
+       /*! XXX \todo Leaking anything allocated by reload_config() ... */
+reload_failed:
+       sched_context_destroy(sched);
+sched_failed:
+       io_context_destroy(io);
+io_failed:
+       free(buff);
+buff_failed:
+       return AST_MODULE_LOAD_DECLINE;
+}
+
+static int unload_module(void)
+{
+       /* First, take us out of the channel loop */
+       sched_context_destroy(sched);
+
+       ast_cli_unregister_multiple(unistim_cli, ARRAY_LEN(unistim_cli));
+
+       ast_channel_unregister(&unistim_tech);
+       ast_rtp_proto_unregister(&unistim_rtp);
+
+       ast_mutex_lock(&monlock);
+       if (monitor_thread && (monitor_thread != AST_PTHREADT_STOP) && (monitor_thread != AST_PTHREADT_NULL)) {
+               pthread_cancel(monitor_thread);
+               pthread_kill(monitor_thread, SIGURG);
+               pthread_join(monitor_thread, NULL);
+       }
+       monitor_thread = AST_PTHREADT_STOP;
+       ast_mutex_unlock(&monlock);
+
+       free(buff);
+       close(unistimsock);
+
+       return 0;
+}
+
+/*! reload: Part of Asterisk module interface ---*/
+int reload(void)
+{
+       unistim_reload(0, 0, NULL);
+       return 0;
+}
+
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "UNISTIM Protocol (USTM)",
+    .load = load_module,
+    .unload = unload_module,
+    .reload = reload,
+);
diff --git a/configs/unistim.conf.sample b/configs/unistim.conf.sample
new file mode 100644 (file)
index 0000000..91dab9e
--- /dev/null
@@ -0,0 +1,43 @@
+;
+; chan_unistim configuration file.
+;
+
+[general]
+port=5000                    ; UDP port
+;keepalive=120               ; in seconds, default = 120
+;public_ip=                  ; if asterisk is behind a nat, specify your public IP
+;autoprovisioning=no         ; Allow undeclared phones to register an extension. See README for important
+                             ; informations. no (default), yes, tn.
+
+;[black]                     ; name of the device
+;device=000ae4012345         ; mac address of the phone
+;rtp_port=10000              ; RTP port used by the phone, default = 10000. RTCP = rtp_port+1
+;rtp_method=0                ; If you don't have sound, you can try 1, 2 or 3, default = 0
+;status_method=0             ; If you don't see status text, try 1, default = 0
+;titledefault=Asterisk       ; default = "TimeZone (your time zone)". 12 characters max
+;maintext0="you can insert"  ; default = "Welcome", 24 characters max
+;maintext1="a custom text"   ; default = the name of the device, 24 characters max
+;maintext2="(main page)"     ; default = the public IP of the phone, 24 characters max
+;dateformat=1                ; 0 = month/day, 1 (default) = day/month
+;timeformat=1                ; 0 = 0:00am ; 1 (default) = 0h00, 2 = 0:00
+;contrast=8                  ; define the contrast of the LCD. From 0 to 15. Default = 8
+;country=us                  ; country (ccTLD) for dial tone frequency. See README, default = us
+;ringvolume=2                ; ring volume : 0,1,2,3, can be overrided by Dial(), default = 2
+;ringstyle=3                 ; ring style : 0 to 7, can be overrided by Dial(), default = 3
+;callhistory=1               ; 0 = disable, 1 = enable call history, default = 1
+;callerid="Customer Support" <555-234-5678>
+;context=default             ; context, default="default"
+;mailbox=1234                ; Specify the mailbox number. Used by Message Waiting Indication
+;linelabel="Support"         ; Softkey label for the next line=> entry, 9 char max.
+;extension=none              ; Add an extension into the dialplan. Only valid in context specified previously.
+                             ; none=don't add (default), ask=prompt user, line=use the line number
+;line => 100                 ; Only one line by device is currently supported.
+                             ; Beware ! only bookmark and softkey entries are allowed after line=>
+;bookmark=Hans C.@123        ; Use a softkey to dial 123. Name : 9 char max
+;bookmark=Mailbox@011@54     ; 54 shows a mailbox icon. See #define FAV_ICON_ for other values (32 to 63)
+;bookmark=Test@*@USTM/violet ; Display an icon if violet is connected (dynamic), only for unistim device
+;bookmark=4@Pager@54321@51   ; Display a pager icon and dial 54321 when softkey 4 is pressed 
+
+;[violet]
+;device=006038abcdef
+;line => 102
diff --git a/doc/unistim.txt b/doc/unistim.txt
new file mode 100644 (file)
index 0000000..f0bfe12
--- /dev/null
@@ -0,0 +1,127 @@
+This is a channel driver for Unistim protocol. You can use a least a Nortel i2002, i2004 and i2050.
+Following features are supported : Send/Receive CallerID, Redial, SoftKeys, SendText(), Music On Hold, Message Waiting Indication (MWI), Distinctive ring, Transfer, Threeway call, History, Forward, Dynamic SoftKeys.
+
+How to configure the i2004 :
+- Power on the phone
+- Wait for message "Nortel Networks"
+- Press quickly the four buttons just below the LCD screen, in sequence from left to right
+- If you see "Locating server", power off or reboot the phone and try again
+- DHCP : 0
+- SET IP : a free ip of your network
+- NETMSK / DEF GW : netmask and default gateway
+- S1 IP : ip of the asterisk server
+- S1 PORT : 5000
+- S1 ACTION : 1
+- S1 RETRY COUNT : 10
+- S2 : same as S1
+
+How to place a call :
+- The line=> entry in unistim.conf does not add an extension in asterisk by default.
+  If you want to do that, add extension=line in your phone context.
+- if you have this entry on unistim.conf :
+ [violet]
+ device=006038abcdef
+ line => 102
+
+ then use exten => 2100,1,Dial(USTM/102@violet)
+
+- You can display a text with :
+ exten => 555,1,SendText(Sends text to client. Greetings) 
+
+Rebooting a Nortel phone:
+- Press mute,up,down,up,down,up,mute,9,release(red button)
+
+Distinctive ring :
+- You need to append /r to the dial string.
+- The first digit must be from 0 to 7 (inclusive). It's the 'melody' selection.
+- The second digit (optional) must be from 0 to 3 (inclusive). It's the ring volume. 0 still produce a sound.
+ Select the ring style #1 and the default volume :
+ exten => 2100,1,Dial(USTM/102@violet/r1)
+ Select the ring style #4 with a very loud volume :
+ exten => 2100,1,Dial(USTM/102@violet/r43)
+
+Country code :
+- You can use the following codes for country= (used for dial tone)
+  us fr au nl uk fi es jp no at nz tw cl se be sg il br hu lt pl za pt ee mx in de ch dk cn
+- If you want a correct ring, busy and congestion tone, you also need a valid entry in 
+  indications.conf and check if res_indications.so is loaded.
+  language= is also supported but it's only used by Asterisk (for more informations
+  see http://www.voip-info.org/wiki/view/Asterisk+multi-language ). The end user interface of the phone
+  will stay in english.
+
+Bookmarks, Softkeys
+ - Layout :
+ |--------------------|
+ |  5            2    |
+ |  4            1    |
+ |  3            0    |
+ - When the second letter of bookmark= is @, then the first character is used for positioning this entry
+ - If this option is omitted, the bookmark will be added to the next available sofkey
+ - Also work for linelabel (example : linelabel="5@Line 123")
+ - You can change a softkey programmatically with SendText(@position@icon@label@extension) ex: SendText(@1@55@Stop Forwd@908)
+
+Autoprovisioning :
+- This feature must only be used on a trusted network. It's very insecure : all unistim phones
+  will be able to use your asterisk pbx.
+- You must add an entry called [template]. Each new phones will be based on this profile.
+- You must set a least line=>. This value will be incremented when a new phone is registred.
+  device= must not be specified. By default, the phone will asks for a number. It will be added into
+  the dialplan. Add extension=line for using the generated line number instead.
+ Example :
+ [general]
+ port=5000
+ autoprovisioning=yes
+
+ [template]
+ line => 100
+ bookmark=Support@123  ; Every phone will have a softkey Support
+
+- If a first  phone have a mac = 006038abcdef, a new device named USTM/100@006038abcdef will be created.
+- If a second phone have a mac = 006038000000, it will be named USTM/101@006038000000 and so on.
+
+- When autoprovisioning=tn, new phones will ask for a tn, if this number match a tn= entry in a device,
+  this phone will be mapped into.
+ Example:
+ [black]
+ tn=1234
+ line => 100
+
+- If a user enter TN 1234, the phone will be known as USTM/100@black.
+
+History :
+- Use the two keys located in the middle of the Fixed feature keys row (on the bottom of the phone)
+  to enter call history.
+- By default, chan_unistim add any incoming and outgoing calls in files (/var/log/asterisk/unistimHistory)
+  It can be a privacy issue, you can disable this feature by adding callhistory=0. If history files were created,
+  you also need to delete them. callhistory=0 will NOT disable normal asterisk CDR logs.
+
+Forward :
+- This feature requires chan_local (loaded by default)
+
+Generic asterisk features :
+ You can use the following entries in unistim.conf
+ - Billing : accountcode amaflags
+ - Call Group : callgroup pickupgroup (untested)
+ - Music On Hold : musiconhold
+ - Language : language (see section Coutry Code)
+ - RTP NAT : nat (control ast_rtp_setnat, default = 0. Obscure behaviour)
+
+Trunking :
+- It's not possible to connect a Nortel Succession/Meridian/BCM to Asterisk via chan_unistim. Use either E1/T1 trunks, or buy UTPS (UNISTIM Terminal Proxy Server) from Nortel. 
+
+Wiki, Additional infos, Comments :
+- http://www.voip-info.org/wiki-Asterisk+UNISTIM+channels
+
+*BSD :
+- Comment #define HAVE_IP_PKTINFO in chan_unistim.c
+- Set public_ip with an IP of your computer
+- Check if unistim.conf is in the correct directory
+
+Issues :
+- As always, NAT can be tricky. If a phone is behind a NAT, you should port forward UDP 5000 (or change [general] port= in unistim.conf) and UDP 10000 (or change [yourphone] rtp_port=)
+- Only one phone per public IP (multiple phones behind the same NAT don't work). You can either :
+   - Setup a VPN
+   - Install asterisk inside your NAT. You can use IAX2 trunking if you're master asterisk is outside.
+- If asterisk is behind a NAT, you must set [general] public_ip= with your public IP. If you don't do that or the bindaddr is invalid (or no longer valid, eg dynamic IP), phones should be able to display messages but will be unable to send/receive RTP packets (no sound)
+- Don't forget : this work is based entirely on a reverse engineering, so you may encounter compatibility issues. At this time, I know three ways to establish a RTP session. You can modify [yourphone] rtp_method= with 0, 1, 2 or 3. 0 is the default method, should work. 1 can be used on new firmware (black i2004) and 2 on old violet i2004. 3 can be used on black i2004 with chrome.
+- If you have difficulties, try unistim debug and set verbose 3 on the asterisk CLI. For extra debug, uncomment #define DUMP_PACKET 1 and recompile chan_unistim.