Add ability for chan_dahdi ISDN to block connected line updates per span.

[asterisk/asterisk.git] / channels / sig_pri.c

diff --git a/channels/sig_pri.c b/channels/sig_pri.c
index 093d8ad..feb86fd 100644 (file)
--- a/channels/sig_pri.c
+++ b/channels/sig_pri.c
@@ -8019,8 +8019,34 @@ int sig_pri_indicate(struct sig_pri_chan *p, struct ast_channel *chan, int condi
                        struct pri_party_connected_line connected;
                        int dialplan;
                        int prefix_strip;
+                       int colp_allowed = 0;
 
                        pri_grab(p, p->pri);
+
+                       /* Check if a connected line update is allowed at this time. */
+                       switch (p->pri->colp_send) {
+                       case SIG_PRI_COLP_BLOCK:
+                               break;
+                       case SIG_PRI_COLP_CONNECT:
+                               /*
+                                * Outgoing calls receive CONNECT and act like an update before
+                                * the call is connected.
+                                */
+                               if (p->call_level <= SIG_PRI_CALL_LEVEL_ALERTING && !p->outgoing) {
+                                       colp_allowed = 1;
+                               }
+                               break;
+                       case SIG_PRI_COLP_UPDATE:
+                               colp_allowed = 1;
+                               break;
+                       }
+                       if (!colp_allowed) {
+                               pri_rel(p->pri);
+                               ast_debug(1, "Blocked AST_CONTROL_CONNECTED_LINE on %s\n",
+                                       ast_channel_name(chan));
+                               break;
+                       }
+
                        memset(&connected, 0, sizeof(connected));
                        sig_pri_party_id_from_ast(&connected.id, &ast_channel_connected(chan)->id);