From: Alec L Davis <sivad.a@paradise.net.nz>
Date: Sat, 27 Feb 2010 23:51:28 +0000 (+0000)
Subject: overlap receiving: automatically send CALL PROCEEDING when dialplan starts
X-Git-Tag: 1.4.30-rc3~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=271908886f91169d7ad1407cecdf75d1d8a866d1;p=thirdparty%2Fasterisk.git

overlap receiving: automatically send CALL PROCEEDING when dialplan starts

Following Q.931 5.2.4
When the user has determined that sufficient call information has been received the
user shall stop T302 and send CALL PROCEEDING to the network.

Previously timeouts were possible if the dialplan took a long time to issue any
response back to the network.

Verified that our local TELCO also does the same.

(issue #16789)
Reported by: alecdavis
Patches:
      based on overlap_receiving_trunk.diff.txt uploaded by alecdavis (license 585)
Tested by: alecdavis

(closes issue #16789)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@249365 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c
index 67d0d1736f..954c723521 100644
--- a/channels/chan_dahdi.c
+++ b/channels/chan_dahdi.c
@@ -5959,7 +5959,20 @@ static void *ss_thread(void *data)
 		if (ast_exists_extension(chan, chan->context, exten, 1, p->cid_num)) {
 			/* Start the real PBX */
 			ast_copy_string(chan->exten, exten, sizeof(chan->exten));
-			if (p->dsp) ast_dsp_digitreset(p->dsp);
+			if (p->dsp) {
+				ast_dsp_digitreset(p->dsp);
+			}
+			if (p->pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING) {
+				if (p->pri->pri) {		
+					if (!pri_grab(p, p->pri)) {
+						pri_proceeding(p->pri->pri, p->call, PVT_TO_CHANNEL(p), 0);
+						p->proceeding = 1;
+						pri_rel(p->pri);
+					} else {
+						ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span);
+					}
+				}
+			}
 			dahdi_enable_ec(p);
 			ast_setstate(chan, AST_STATE_RING);
 			res = ast_pbx_run(chan);