KAZOO-2411-master: add check for invite type

kamailio/default.cfg

@@ -615,12 +615,13 @@ route[INTERNAL_TO_EXTERNAL_RELAY]
 
     remove_hf_re("^X-.*");
     
-    if( $avp(kazoo_aor) != $null)
-    {
+    if($hdr(X-KAZOO-INVITE-FORMAT) == "contact") {
+        $ru = $(ulc(callee=>addr));
+        xlog("L_INFO", "$ci|end|routing to contact $ru\n");
+    } else if( $avp(kazoo_aor) != $null) {
        $du = $avp(kazoo_du);
        xlog("L_INFO", "$ci|end|routing to $ruid : AOR : $avp(kazoo_aor)\n");
     }
-    
 
     t_on_reply("EXTERNAL_REPLY");