From 6083ccaa09bdf932dabf5b88effe8639de95a2b8 Mon Sep 17 00:00:00 2001
From: Andreas Eversberg <jolly@eversberg.eu>
Date: Sat, 20 Mar 2021 11:35:45 +0100
Subject: If SDP has been received earlier, do not require it on answer of call

---
 src/sip/sip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sip/sip.c b/src/sip/sip.c
index 3721034..1122f89 100644
--- a/src/sip/sip.c
+++ b/src/sip/sip.c
@@ -1167,7 +1167,7 @@ static void call_r_invite(call_t *call, int status, char const *phrase, nua_hand
 			memcpy(call->sdp_response, sip->sip_payload->pl_data, sip->sip_payload->pl_len);
 			call->sdp_response[sip->sip_payload->pl_len] = '\0';
 			osmo_cc_debug_sdp(call->sdp_response);
-		} else if (status >= 200 && status <= 299) {
+		} else if (!call->sdp_response && status >= 200 && status <= 299) {
 			PDEBUG(DSIP, DEBUG_DEBUG, " -> No SDP in message\n");
 			release_and_destroy(call, 0, 400, 0, SIP_400_BAD_REQUEST);
 			return;
-- 
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