From 95c1ba645871a8eaecd2b278e4376eef4913da12 Mon Sep 17 00:00:00 2001
From: markster <markster@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Wed, 9 Apr 2003 05:38:39 +0000
Subject: Don't send 180 "Ringing" after 183 Session Progres

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@794 f38db490-d61c-443f-a65b-d21fe96a405b
---
 channels/chan_sip.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index a1bd9d7ab..36aa29466 100755
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -1045,8 +1045,12 @@ static int sip_indicate(struct ast_channel *ast, int condition)
 	switch(condition) {
 	case AST_CONTROL_RINGING:
 		if (ast->_state == AST_STATE_RING) {
-			transmit_response(p, "180 Ringing", &p->initreq);
-			break;
+			if (!p->progress) {
+				transmit_response(p, "180 Ringing", &p->initreq);
+				break;
+			} else {
+				/* Oops, we've sent progress tones.  Let Asterisk do it instead */
+			}
 		}
 		return -1;
 	case AST_CONTROL_BUSY:
-- 
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