Version 0.1.3 from FTP
authorMark Spencer <markster@digium.com>
Sun, 26 Mar 2000 01:59:06 +0000 (01:59 +0000)
committerMark Spencer <markster@digium.com>
Sun, 26 Mar 2000 01:59:06 +0000 (01:59 +0000)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@207 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_dial.c
channel.c
channels/chan_iax.c
channels/chan_oss.c
include/asterisk/channel.h
include/asterisk/channel_pvt.h
include/asterisk/frame.h

index 02ed8d3..6eef794 100755 (executable)
@@ -18,6 +18,7 @@
 #include <asterisk/options.h>
 #include <asterisk/module.h>
 #include <asterisk/translate.h>
+#include <asterisk/say.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <unistd.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <sys/time.h>
+#include <sys/signal.h>
 
 #include <pthread.h>
 
-
-static char *tdesc = "Trivial Dialing Application";
+static char *tdesc = "Dialing/Parking Application";
 
 static char *app = "Dial";
 
+static char *parkedcall = "ParkedCall";
+
+/* No more than 90 seconds parked before you do something with them */
+static int parkingtime = 90000;
+
+/* Context for which parking is made accessible */
+static char parking_con[AST_MAX_EXTENSION] = "default";
+
+/* Extension you type to park the call */
+static char parking_ext[AST_MAX_EXTENSION] = "700";
+
+/* First available extension for parking */
+static int parking_start = 701;
+
+/* Last available extension for parking */
+static int parking_stop = 750;
+
 /* We define a customer "local user" structure because we
    use it not only for keeping track of what is in use but
    also for keeping track of who we're dialing. */
@@ -44,8 +62,164 @@ struct localuser {
        struct localuser *next;
 };
 
+struct parkeduser {
+       struct ast_channel *chan;
+       struct timeval start;
+       int parkingnum;
+       /* Where to go if our parking time expires */
+       char context[AST_MAX_EXTENSION];
+       char exten[AST_MAX_EXTENSION];
+       int priority;
+       struct parkeduser *next;
+};
+
+static struct parkeduser *parkinglot;
+
+static pthread_mutex_t parking_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static pthread_t parking_thread;
+
 LOCAL_USER_DECL;
 
+static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int allowredirect);
+
+
+static int park_call(struct ast_channel *chan, struct ast_channel *peer)
+{
+       /* We put the user in the parking list, then wake up the parking thread to be sure it looks
+          after these channels too */
+       struct parkeduser *pu, *cur;
+       int x;
+       pu = malloc(sizeof(struct parkeduser));
+       if (pu) {
+               pthread_mutex_lock(&parking_lock);
+               for (x=parking_start;x<=parking_stop;x++) {
+                       cur = parkinglot;
+                       while(cur) {
+                               if (cur->parkingnum == x) 
+                                       break;
+                               cur = cur->next;
+                       }
+                       if (!cur)
+                               break;
+               }
+               if (x <= parking_stop) {
+                       pu->chan = chan;
+                       gettimeofday(&pu->start, NULL);
+                       pu->parkingnum = x;
+                       /* Remember what had been dialed, so that if the parking
+                          expires, we try to come back to the same place */
+                       strncpy(pu->context, chan->context, sizeof(pu->context));
+                       strncpy(pu->exten, chan->exten, sizeof(pu->exten));
+                       pu->priority = chan->priority;
+                       pu->next = parkinglot;
+                       parkinglot = pu;
+                       pthread_mutex_unlock(&parking_lock);
+                       /* Wake up the (presumably select()ing) thread */
+                       pthread_kill(parking_thread, SIGURG);
+                       if (option_verbose > 1) 
+                               ast_verbose(VERBOSE_PREFIX_2 "Parked %s on %d\n", pu->chan->name, pu->parkingnum);
+                       ast_say_digits(peer, pu->parkingnum, peer->language);
+                       return 0;
+               } else {
+                       ast_log(LOG_WARNING, "No more parking spaces\n");
+                       free(pu);
+                       pthread_mutex_unlock(&parking_lock);
+                       return -1;
+               }
+       } else {
+               ast_log(LOG_WARNING, "Out of memory\n");
+               return -1;
+       }
+       return 0;
+}
+
+static void *do_parking_thread(void *ignore)
+{
+       int ms, tms, max;
+       struct parkeduser *pu, *pl, *pt = NULL;
+       struct timeval tv;
+       struct ast_frame *f;
+       fd_set rfds, efds;
+       fd_set nrfds, nefds;
+       FD_ZERO(&rfds);
+       FD_ZERO(&efds);
+       for (;;) {
+               ms = -1;
+               max = -1;
+               pthread_mutex_lock(&parking_lock);
+               pl = NULL;
+               pu = parkinglot;
+               gettimeofday(&tv, NULL);
+               FD_ZERO(&nrfds);
+               FD_ZERO(&nefds);
+               while(pu) {
+                       tms = (tv.tv_sec - pu->start.tv_sec) * 1000 + (tv.tv_usec - pu->start.tv_usec) / 1000;
+                       if (tms > parkingtime) {
+                               /* They've been waiting too long, send them back to where they came.  Theoretically they
+                                  should have their original extensions and such, but we copy to be on the safe side */
+                               strncpy(pu->chan->exten, pu->exten, sizeof(pu->chan->exten));
+                               strncpy(pu->chan->context, pu->context, sizeof(pu->chan->context));
+                               pu->chan->priority = pu->priority;
+                               /* Start up the PBX, or hang them up */
+                               if (ast_pbx_start(pu->chan))  {
+                                       ast_log(LOG_WARNING, "Unable to restart the PBX for user on '%s', hanging them up...\n", pu->chan->name);
+                                       ast_hangup(pu->chan);
+                               }
+                               /* And take them out of the parking lot */
+                               if (pl) 
+                                       pl->next = pu->next;
+                               else
+                                       parkinglot = pu->next;
+                               pt = pu;
+                               pu = pu->next;
+                               free(pt);
+                       } else if (FD_ISSET(pu->chan->fd, &rfds) || FD_ISSET(pu->chan->fd, &efds)) {
+                               /* See if they need servicing */
+                               f = ast_read(pu->chan);
+                               if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass ==  AST_CONTROL_HANGUP))) {
+                                       /* There's a problem, hang them up*/
+                                       if (option_verbose > 1) 
+                                               ast_verbose(VERBOSE_PREFIX_2 "%s got tired of being parked\n", pu->chan->name);
+                                       ast_hangup(pu->chan);
+                                       /* And take them out of the parking lot */
+                                       if (pl) 
+                                               pl->next = pu->next;
+                                       else
+                                               parkinglot = pu->next;
+                                       pt = pu;
+                                       pu = pu->next;
+                                       free(pt);
+                               } else {
+                                       /* XXX Maybe we could do something with packets, like dial "0" for operator or something XXX */
+                                       ast_frfree(f);
+                                       goto std;       /* XXX Ick: jumping into an else statement??? XXX */
+                               }
+                       } else  {
+                               /* Keep this one for next one */
+std:                   FD_SET(pu->chan->fd, &nrfds);
+                               FD_SET(pu->chan->fd, &nefds);
+                               /* Keep track of our longest wait */
+                               if ((tms < ms) || (ms < 0))
+                                       ms = tms;
+                               if (pu->chan->fd > max)
+                                       max = pu->chan->fd;
+                               pl = pu;
+                               pu = pu->next;
+                       }
+               }
+               pthread_mutex_unlock(&parking_lock);
+               rfds = nrfds;
+               efds = nefds;
+               tv.tv_sec = ms / 1000;
+               tv.tv_usec = (ms % 1000) * 1000;
+               /* Wait for something to happen */
+               select(max + 1, &rfds, NULL, &efds, (ms > -1) ? &tv : NULL);
+               pthread_testcancel();
+       }
+       return NULL;    /* Never reached */
+}
+
 static void hanguptree(struct localuser *outgoing, struct ast_channel *exception)
 {
        /* Hang up a tree of stuff */
@@ -222,15 +396,19 @@ static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int a
                                         (f->subclass == AST_CONTROL_BUSY)))) 
                        return -1;
                if ((f->frametype == AST_FRAME_VOICE) ||
-                   (f->frametype == AST_FRAME_DTMF)) {
-                       if ((f->frametype == AST_FRAME_DTMF) && (who == peer) && allowredirect) {
+                   (f->frametype == AST_FRAME_DTMF) ||
+                       (f->frametype == AST_FRAME_TEXT)) {
+                       if ((f->frametype == AST_FRAME_DTMF) && (who == peer) && allowredirect &&
+                            (f->subclass == '#')) {
                                if (f->subclass == '#') {
                                        memset(newext, 0, sizeof(newext));
                                        ptr = newext;
                                        len = ast_pbx_longest_extension(chan->context) + 1;
+                                       if (len < ast_pbx_longest_extension("default") + 1)
+                                               len = ast_pbx_longest_extension("default") + 1;
 
                                        /* Transfer */
-                                       if ((res=ast_streamfile(peer, "pbx-transfer")))
+                                       if ((res=ast_streamfile(peer, "pbx-transfer", chan->language)))
                                                break;
                                        if ((res=ast_waitstream(peer, AST_DIGIT_ANY)) < 0)
                                                break;
@@ -244,15 +422,35 @@ static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int a
                                        res = ast_readstring(peer, ptr, len, 3000, 2000, "#");
                                        if (res)
                                                break;
-                                       if (ast_exists_extension(chan, chan->context, newext, 1)) {
-                                               /* Set the channel's new extension, since it exists */
+                                       if (!strcmp(newext, parking_ext)) {
+                                               if (!park_call(chan, peer)) {
+                                                       /* We return non-zero, but tell the PBX not to hang the channel when
+                                                          the thread dies -- We have to be careful now though.  We are responsible for 
+                                                          hanging up the channel, else it will never be hung up! */
+                                                       res=AST_PBX_KEEPALIVE;
+                                                       break;
+                                               } else {
+                                                       ast_log(LOG_WARNING, "Unable to park call %s\n", chan->name);
+                                               }
+                                               /* XXX Maybe we should have another message here instead of invalid extension XXX */
+                                       } else if (ast_exists_extension(chan, peer->context, newext, 1)) {
+                                               /* Set the channel's new extension, since it exists, using peer context */
                                                strncpy(chan->exten, newext, sizeof(chan->exten));
+                                               strncpy(chan->context, peer->context, sizeof(chan->context));
+                                               chan->priority = 0;
+                                               ast_frfree(f);
+                                               res=0;
+                                               break;
+                                       } else if (ast_exists_extension(chan, "default", newext, 1)) {
+                                               /* Set the channel's new extension, since it exists, using peer context */
+                                               strncpy(chan->exten, newext, sizeof(chan->exten));
+                                               strncpy(chan->context, "default", sizeof(chan->context));
                                                chan->priority = 0;
                                                ast_frfree(f);
                                                res=0;
                                                break;
                                        }
-                                       res = ast_streamfile(peer, "pbx-invalid");
+                                       res = ast_streamfile(peer, "pbx-invalid", chan->language);
                                        if (res)
                                                break;
                                        res = ast_waitstream(peer, AST_DIGIT_ANY);
@@ -280,6 +478,63 @@ static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int a
        return res;
 }
 
+static int park_exec(struct ast_channel *chan, void *data)
+{
+       int res=0;
+       struct localuser *u;
+       struct ast_channel *peer=NULL, *nchan;
+       struct parkeduser *pu, *pl=NULL;
+       int park;
+       if (!data) {
+               ast_log(LOG_WARNING, "Park requires an argument (extension number)\n");
+               return -1;
+       }
+       LOCAL_USER_ADD(u);
+       park = atoi((char *)data);
+       pthread_mutex_lock(&parking_lock);
+       pu = parkinglot;
+       while(pu) {
+               if (pu->parkingnum == park) {
+                       if (pl)
+                               pl->next = pu->next;
+                       else
+                               parkinglot = pu->next;
+                       break;
+               }
+               pu = pu->next;
+       }
+       pthread_mutex_unlock(&parking_lock);
+       if (pu) {
+               peer = pu->chan;
+               free(pu);
+       }
+       if (peer) {
+               /* Build a translator if necessary */
+               if (peer->format & chan->format) 
+                       nchan = chan;
+               else
+                       nchan = ast_translator_create(chan, peer->format, AST_DIRECTION_BOTH);
+               /* This runs sorta backwards, since we give the incoming channel control, as if it
+                  were the person called. */
+               if (option_verbose > 2) 
+                       ast_verbose(VERBOSE_PREFIX_3 "Channel %s connected to parked call %d\n", chan->name, park);
+               res = bridge_call(peer, nchan, 1);
+               if (nchan != chan)
+                       ast_translator_destroy(nchan);
+               /* Simulate the PBX hanging up */
+               if (res != AST_PBX_KEEPALIVE)
+                       ast_hangup(peer);
+               return -1;
+       } else {
+               /* XXX Play a message XXX */
+               if (option_verbose > 2) 
+                       ast_verbose(VERBOSE_PREFIX_3 "Channel %s tried to talk to non-existant parked call %d\n", chan->name, park);
+               res = -1;
+       }
+       LOCAL_USER_REMOVE(u);
+       return res;
+}
+
 static int dial_exec(struct ast_channel *chan, void *data)
 {
        int res=-1;
@@ -414,7 +669,24 @@ int unload_module(void)
 
 int load_module(void)
 {
-       return ast_register_application(app, dial_exec);
+       int res;
+       int x;
+       struct ast_context *con;
+       char exten[AST_MAX_EXTENSION];
+       con = ast_context_find(parking_con);
+       if (!con) {
+               ast_log(LOG_ERROR, "Parking context '%s' does not exist\n", parking_con);
+               return -1;
+       }
+       for(x=parking_start; x<=parking_stop;x++) {
+               snprintf(exten, sizeof(exten), "%d", x);
+               ast_add_extension2(con, 1, exten, 1, parkedcall, strdup(exten), free);
+       }
+       pthread_create(&parking_thread, NULL, do_parking_thread, NULL);
+       res = ast_register_application(parkedcall, park_exec);
+       if (!res)
+               res = ast_register_application(app, dial_exec);
+       return res;
 }
 
 char *description(void)
index 881e291..f83a4eb 100755 (executable)
--- a/channel.c
+++ b/channel.c
@@ -126,6 +126,7 @@ struct ast_channel *ast_channel_alloc(void)
                                tmp->data = NULL;
                                pthread_mutex_init(&tmp->lock, NULL);
                                strncpy(tmp->context, "default", sizeof(tmp->context));
+                               strncpy(tmp->language, defaultlanguage, sizeof(tmp->language));
                                strncpy(tmp->exten, "s", sizeof(tmp->exten));
                                tmp->priority=1;
                                tmp->next = channels;
@@ -387,6 +388,16 @@ struct ast_frame *ast_read(struct ast_channel *chan)
        return f;
 }
 
+int ast_sendtext(struct ast_channel *chan, char *text)
+{
+       int res = 0;
+       CHECK_BLOCKING(chan);
+       if (chan->pvt->send_text)
+               res = chan->pvt->send_text(chan, text);
+       chan->blocking = 0;
+       return res;
+}
+
 int ast_write(struct ast_channel *chan, struct ast_frame *fr)
 {
        int res = -1;
index f3e7d33..80e1905 100755 (executable)
@@ -125,6 +125,7 @@ struct iax_peer {
        char username[80];
        char secret[80];
        struct sockaddr_in addr;
+       int formats;
        struct in_addr mask;
        struct iax_peer *next;
 };
@@ -668,8 +669,8 @@ static int attempt_transmit(void *data)
                        /* Attempt transmission */
                        send_packet(f);
                        f->retries++;
-                       /* Try again later after 2 times as long */
-                       f->retrytime *= 2;
+                       /* Try again later after 10 times as long */
+                       f->retrytime *= 10;
                        if (f->retrytime > MAX_RETRY_TIME)
                                f->retrytime = MAX_RETRY_TIME;
                        ast_sched_add(sched, f->retrytime, attempt_transmit, f);
@@ -854,6 +855,13 @@ static int iax_digit(struct ast_channel *c, char digit)
        return send_command(c->pvt->pvt, AST_FRAME_DTMF, digit, 0, NULL, 0, -1);
 }
 
+static int iax_sendtext(struct ast_channel *c, char *text)
+{
+       
+       return send_command(c->pvt->pvt, AST_FRAME_TEXT,
+               0, 0, text, strlen(text) + 1, -1);
+}
+
 static int create_addr(struct sockaddr_in *sin, char *peer)
 {
        struct hostent *hp;
@@ -1023,6 +1031,7 @@ static struct ast_channel *ast_iax_new(struct chan_iax_pvt *i, int state)
                tmp->format = iax_capability;
                tmp->pvt->pvt = i;
                tmp->pvt->send_digit = iax_digit;
+               tmp->pvt->send_text = iax_sendtext;
                tmp->pvt->call = iax_call;
                tmp->pvt->hangup = iax_hangup;
                tmp->pvt->answer = iax_answer;
index caf2403..5826180 100755 (executable)
@@ -57,6 +57,7 @@ static int silencesuppression = 0;
 static int silencethreshold = 1000;
 
 static char digits[80] = "";
+static char text2send[80] = "";
 
 static pthread_mutex_t usecnt_lock = PTHREAD_MUTEX_INITIALIZER;
 
@@ -66,6 +67,7 @@ static char *tdesc = "OSS Console Channel Driver";
 static char *config = "oss.conf";
 
 static char context[AST_MAX_EXTENSION] = "default";
+static char language[MAX_LANGUAGE] = "";
 static char exten[AST_MAX_EXTENSION] = "s";
 
 /* Some pipes to prevent overflow */
@@ -341,6 +343,12 @@ static int oss_digit(struct ast_channel *c, char digit)
        return 0;
 }
 
+static int oss_text(struct ast_channel *c, char *text)
+{
+       ast_verbose( " << Console Received text %s >> \n", text);
+       return 0;
+}
+
 static int oss_call(struct ast_channel *c, char *dest, int timeout)
 {
        ast_verbose( " << Call placed to '%s' on console >> \n", dest);
@@ -477,6 +485,14 @@ static struct ast_frame *oss_read(struct ast_channel *chan)
        if (needhangup) {
                return NULL;
        }
+       if (strlen(text2send)) {
+               f.frametype = AST_FRAME_TEXT;
+               f.subclass = 0;
+               f.data = text2send;
+               f.datalen = strlen(text2send);
+               strcpy(text2send,"");
+               return &f;
+       }
        if (strlen(digits)) {
                f.frametype = AST_FRAME_DTMF;
                f.subclass = digits[0];
@@ -535,14 +551,18 @@ static struct ast_channel *oss_new(struct chan_oss_pvt *p, int state)
                tmp->format = AST_FORMAT_SLINEAR;
                tmp->pvt->pvt = p;
                tmp->pvt->send_digit = oss_digit;
+               tmp->pvt->send_text = oss_text;
                tmp->pvt->hangup = oss_hangup;
                tmp->pvt->answer = oss_answer;
                tmp->pvt->read = oss_read;
+               tmp->pvt->call = oss_call;
                tmp->pvt->write = oss_write;
                if (strlen(p->context))
                        strncpy(tmp->context, p->context, sizeof(tmp->context));
                if (strlen(p->exten))
                        strncpy(tmp->exten, p->exten, sizeof(tmp->exten));
+               if (strlen(language))
+                       strncpy(tmp->language, language, sizeof(tmp->language));
                p->owner = tmp;
                tmp->state = state;
                pthread_mutex_lock(&usecnt_lock);
@@ -563,6 +583,7 @@ static struct ast_channel *oss_new(struct chan_oss_pvt *p, int state)
 static struct ast_channel *oss_request(char *type, int format, void *data)
 {
        int oldformat = format;
+       struct ast_channel *tmp;
        format &= AST_FORMAT_SLINEAR;
        if (!format) {
                ast_log(LOG_NOTICE, "Asked to get a channel of format '%d'\n", oldformat);
@@ -572,7 +593,11 @@ static struct ast_channel *oss_request(char *type, int format, void *data)
                ast_log(LOG_NOTICE, "Already have a call on the OSS channel\n");
                return NULL;
        }
-       return oss_new(&oss, AST_STATE_DOWN);
+       tmp= oss_new(&oss, AST_STATE_DOWN);
+       if (!tmp) {
+               ast_log(LOG_WARNING, "Unable to create new OSS channel\n");
+       }
+       return tmp;
 }
 
 static int console_autoanswer(int fd, int argc, char *argv[])
@@ -629,6 +654,30 @@ static int console_answer(int fd, int argc, char *argv[])
        return RESULT_SUCCESS;
 }
 
+static char sendtext_usage[] =
+"Usage: send text <message>\n"
+"       Sends a text message for display on the remote terminal.\n";
+
+static int console_sendtext(int fd, int argc, char *argv[])
+{
+       int tmparg = 1;
+       if (argc < 1)
+               return RESULT_SHOWUSAGE;
+       if (!oss.owner) {
+               ast_cli(fd, "No one is calling us\n");
+               return RESULT_FAILURE;
+       }
+       if (strlen(text2send))
+               ast_cli(fd, "Warning: message already waiting to be sent, overwriting\n");
+       strcpy(text2send, "");
+       while(tmparg <= argc) {
+               strncat(text2send, argv[tmparg++], sizeof(text2send) - strlen(text2send));
+               strncat(text2send, " ", sizeof(text2send) - strlen(text2send));
+       }
+       needanswer++;
+       return RESULT_SUCCESS;
+}
+
 static char answer_usage[] =
 "Usage: answer\n"
 "       Answers an incoming call on the console (OSS) channel.\n";
@@ -694,6 +743,7 @@ static struct ast_cli_entry myclis[] = {
        { { "answer", NULL }, console_answer, "Answer an incoming console call", answer_usage },
        { { "hangup", NULL }, console_hangup, "Hangup a call on the console", hangup_usage },
        { { "dial", NULL }, console_dial, "Dial an extension on the console", dial_usage },
+       { { "send text", NULL }, console_sendtext, "Send text to the remote device", sendtext_usage },
        { { "autoanswer", NULL }, console_autoanswer, "Sets/displays autoanswer", autoanswer_usage, autoanswer_complete }
 };
 
@@ -744,6 +794,8 @@ int load_module()
                                silencethreshold = atoi(v->value);
                        else if (!strcasecmp(v->name, "context"))
                                strncpy(context, v->value, sizeof(context));
+                       else if (!strcasecmp(v->name, "language"))
+                               strncpy(language, v->value, sizeof(language));
                        else if (!strcasecmp(v->name, "extension"))
                                strncpy(exten, v->value, sizeof(exten));
                        v=v->next;
index d78c490..b3ef376 100755 (executable)
@@ -28,11 +28,14 @@ extern "C" {
 #define AST_CHANNEL_NAME 80
 #define AST_CHANNEL_MAX_STACK 32
 
+#define MAX_LANGUAGE 20
+
 /* Max length an extension can be (unique) is this number */
 #define AST_MAX_EXTENSION 80
 
 struct ast_channel {
        char name[AST_CHANNEL_NAME];            /* ASCII Description of channel name */
+       char language[MAX_LANGUAGE];            /* Language requested */
        pthread_t blocker;                                      /* If anyone is blocking, this is them */
        pthread_mutex_t lock;                           /* Lock, can be used to lock a channel for some operations */
        char *blockproc;                                        /* Procedure causing blocking */
@@ -132,6 +135,9 @@ struct ast_frame *ast_read(struct ast_channel *chan);
 /* Write a frame to a channel */
 int ast_write(struct ast_channel *chan, struct ast_frame *frame);
 
+/* Write text to a display on a channel */
+int ast_sendtext(struct ast_channel *chan, char *text);
+
 /* Browse the channels currently in use */
 struct ast_channel *ast_channel_walk(struct ast_channel *prev);
 
index bd75102..8657d4d 100755 (executable)
@@ -37,6 +37,8 @@ struct ast_channel_pvt {
        struct ast_frame * (*read)(struct ast_channel *chan);
        /* Write a frame, in standard format */
        int (*write)(struct ast_channel *chan, struct ast_frame *frame);
+       /* Display or transmit text */
+       int (*send_text)(struct ast_channel *chan, char *text);
 };
 
 /* Create a channel structure */
index 82ef6e6..90ee6f3 100755 (executable)
@@ -55,6 +55,7 @@ struct ast_frame_chain {
 #define AST_FRAME_CONTROL      4               /* A control frame, subclass is AST_CONTROL_* */
 #define AST_FRAME_NULL         5               /* An empty, useless frame */
 #define AST_FRAME_IAX          6               /* Inter Aterisk Exchange private frame type */
+#define AST_FRAME_TEXT         7               /* Text messages */
 
 /* Data formats for capabilities and frames alike */
 #define AST_FORMAT_G723_1      (1 << 0)        /* G.723.1 compression */