From 4d754f3b01057c0a61513365a41e806bde24aeae Mon Sep 17 00:00:00 2001
From: oej <oej@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Wed, 8 Mar 2006 10:54:40 +0000
Subject: [PATCH] Issue #6657 - Ignore 183 Session Progress without SDP
 (imported from 1.2 rev 12458)

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@12459 f38db490-d61c-443f-a65b-d21fe96a405b
---
 channels/chan_sip.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 57d7c7db0..8a5d36262 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -9597,12 +9597,13 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
 		break;
 	case 183:	/* Session progress */
 		sip_cancel_destroy(p);
+		/* Ignore 183 Session progress without SDP */
 		if (!strcasecmp(get_header(req, "Content-Type"), "application/sdp")) {
 			process_sdp(p, req);
-		}
-		if (!ignore && p->owner) {
-			/* Queue a progress frame */
-			ast_queue_control(p->owner, AST_CONTROL_PROGRESS);
+			if (!ignore && p->owner) {
+				/* Queue a progress frame */
+				ast_queue_control(p->owner, AST_CONTROL_PROGRESS);
+			}
 		}
 		break;
 	case 200:	/* 200 OK on invite - someone's answering our call */