FS-3818 --resolve

src/mod/endpoints/mod_sofia/sofia.c

@@ -6033,7 +6033,7 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 			}
 		break;
 	case nua_callstate_ready:
-		if (r_sdp && !is_dup_sdp && switch_rtp_ready(tech_pvt->rtp_session)) {
+		if (r_sdp && !is_dup_sdp && switch_rtp_ready(tech_pvt->rtp_session) && !sofia_test_flag(tech_pvt, TFLAG_NOSDP_REINVITE)) {
 			/* sdp changed since 18X w sdp, we're supposed to ignore it but we, of course, were pressured into supporting it */
 			uint8_t match = 0;