SFSIP-227

src/mod/endpoints/mod_sofia/mod_sofia.c

@@ -1238,7 +1238,12 @@ static void start_udptl(private_object_t *tech_pvt, switch_t38_options_t *t38_op
 
 		switch_rtp_udptl_mode(tech_pvt->rtp_session);
 
-		if (remote_host && remote_port && !strcmp(remote_host, t38_options->remote_ip) && remote_port == t38_options->remote_port) {
+		if (!t38_options || !t38_options->remote_ip) {
+			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_DEBUG, "No remote address\n");
+			return;
+		}
+
+		if (remote_host && remote_port && remote_port == t38_options->remote_port && !strcmp(remote_host, t38_options->remote_ip)) {
 			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_DEBUG, "Remote address:port [%s:%d] has not changed.\n",
 							  t38_options->remote_ip, t38_options->remote_port);
 			return;

src/mod/endpoints/mod_sofia/sofia_glue.c

@@ -3450,9 +3450,9 @@ static switch_t38_options_t *tech_process_udptl(private_object_t *tech_pvt, sdp_
 
 	t38_options->remote_port = m->m_port;
 
-	if (m->m_connections) {
+	if (m->m_connections && m->m_connections->c_address) {
 		t38_options->remote_ip = switch_core_session_strdup(tech_pvt->session, m->m_connections->c_address);
-	} else if (sdp && sdp->sdp_connection) {
+	} else if (sdp && sdp->sdp_connection && sdp->sdp_connection->c_address) {
 		t38_options->remote_ip = switch_core_session_strdup(tech_pvt->session, sdp->sdp_connection->c_address);
 	}