From a0236e6d9261197ca80097bdcd4af384bbb9e8a6 Mon Sep 17 00:00:00 2001
From: Florian Xaver <Florian.XAVER@frequentis.com>
Date: Tue, 2 Jan 2024 06:33:16 +0100
Subject: [PATCH] Fix answering a re-INVITE (#3770)

Change-Id: I98500a12fd319c70d56a2a4fe49142e97fe49608
---
 pjsip/src/pjsua-lib/pjsua_call.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pjsip/src/pjsua-lib/pjsua_call.c b/pjsip/src/pjsua-lib/pjsua_call.c
index 1faf16e0d..96b24f7e6 100644
--- a/pjsip/src/pjsua-lib/pjsua_call.c
+++ b/pjsip/src/pjsua-lib/pjsua_call.c
@@ -2663,6 +2663,7 @@ PJ_DEF(pj_status_t) pjsua_call_answer2(pjsua_call_id call_id,
         goto on_return;
 
     if (!call->inv->invite_tsx ||
+        call->inv->invite_tsx->role != PJSIP_ROLE_UAC ||
         call->inv->invite_tsx->state >= PJSIP_TSX_STATE_COMPLETED)
     {
         PJ_LOG(3,(THIS_FILE, "Unable to answer call (no incoming INVITE or "