From 40b71d4b3987426070be51844cfeb4f5ceec4ddc Mon Sep 17 00:00:00 2001
From: Olle Johansson <oej@edvina.net>
Date: Fri, 31 Mar 2006 15:07:36 +0000
Subject: [PATCH] Don't accept new INVITE if we already have one pending.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@16688 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
channels/chan_sip.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index fea0f551ad..ef400864d2 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -10584,6 +10584,16 @@ static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int
/* We do NOT destroy p here, so that our response will be accepted */
return 0;
}
+
+ if (!ignore && p->pendinginvite) {
+ /* We already have a pending invite. Sorry. You are on hold. */
+ transmit_response(p, "491 Request Pending", req);
+ if (option_debug > 1)
+ ast_log(LOG_DEBUG, "Got INVITE on call where we already have pending INVITE, deferring that - %s\n", p->callid);
+ /* Do NOT destroy dialog */
+ return 0;
+ }
+
if (!ignore) {
/* Use this as the basis */
if (debug)
--
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