always ping

kamailio/registrar-role.cfg

@@ -47,12 +47,10 @@ route[HANDLE_REGISTER]
         if (nat_uac_test("3")) {
             xlog("L_INFO", "$ci|log|correcting NATed contact in registration");
             force_rport();
-
-            setbflag(FLB_NATB);
-            setbflag(FLB_NATSIPPING);
-
             fix_nated_register();
         }
+        setbflag(FLB_NATB);
+        setbflag(FLB_NATSIPPING);
         #!endif
 
         if (is_present_hf("Authorization")) {