record_route on re-invite

kamailio/default.cfg

@@ -347,6 +347,9 @@ route[HANDLE_MOVE_REQUEST]
 route[HANDLE_IN_DIALOG_REQUESTS] 
 {
     if (has_totag()) {
+        if (is_method("INVITE")) {
+            record_route();
+        }
         if (loose_route()) {
             xlog("L_INFO", "$ci|log|loose_route in-dialog message");
             # Called on in-dialog requests