add transfer capability and small ways to test it

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@1290 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_exosip/mod_exosip.c

@@ -1193,6 +1193,7 @@ static switch_status exosip_create_call(eXosip_event_t * event)
 																  NULL,
 																  NULL,
 																  (char *)modname,
+																  NULL,
 																  event->request->req_uri->username)) != 0) {
 			switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
 		}