From d3ef833b3b15540ccbf237f889185cc13bc200cf Mon Sep 17 00:00:00 2001
From: Jean Aunis <jean.aunis@prescom.fr>
Date: Tue, 7 Mar 2017 15:12:48 +0100
Subject: [PATCH] chan_sip: Call not cancelled after receiving a 422 response

When receiving a 422 response, the invitestate variable must be reset to
INV_CALLING.

ASTERISK-26841

Change-Id: Ia0502d6b02192664cefa4e75bafdd2645ce56099
---
 channels/chan_sip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index a0d414483f..85796a0734 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -23917,6 +23917,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest
 	case 422: /* Session-Timers: Session interval too small */
 		xmitres = transmit_request(p, SIP_ACK, seqno, XMIT_UNRELIABLE, FALSE);
 		ast_string_field_set(p, theirtag, NULL);
+		p->invitestate = INV_CALLING;
 		proc_422_rsp(p, req);
 		break;
 
-- 
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