fix transport= tag on re-invite (FSCORE-113)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8067 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/sofia.c

@@ -2674,7 +2674,8 @@ void sofia_handle_sip_i_invite(nua_t *nua, sofia_profile_t *profile, nua_handle_
 			transport_url = sip->sip_contact->m_url;
 		}
 
-		transport = sofia_glue_url2transport(transport_url);		
+		transport = sofia_glue_url2transport(transport_url);
+		tech_pvt->transport = transport;
 
 		url_set_chanvars(session, sip->sip_to->a_url, sip_to);
 		if (switch_channel_get_variable(channel, "sip_to_uri")) {

src/mod/endpoints/mod_sofia/sofia_glue.c

@@ -952,7 +952,7 @@ switch_status_t sofia_glue_do_invite(switch_core_session_t *session)
 		 * Ignore transport chanvar and uri parameter for gateway connections
 		 * since all of them have been already taken care of in mod_sofia.c:sofia_outgoing_channel()
 		 */
-		if (switch_strlen_zero(tech_pvt->gateway_name)) {
+		if (tech_pvt->transport == SOFIA_TRANSPORT_UNKNOWN && switch_strlen_zero(tech_pvt->gateway_name)) {
 			if ((p = (char *)switch_stristr("port=", url))) {
 				p += 5;
 				tech_pvt->transport = sofia_glue_str2transport( p );