ping all subscriptions (#141)

kamailio/presence-role.cfg

@@ -48,27 +48,9 @@ route[PRESENCE_NAT]
 {
     if (client_nat_test("3")) {
         fix_contact();
-        nat_keepalive();
-        force_rport();
     }
-}
-
-route[PRESENCE_CHECK_NAT]
-{
-#!ifdef REGISTRAR_ROLE
-    $xavp(regcfg=>match_received) = $su;
-    xlog("L_INFO", "$ci|check|checking if $fU is registered\n");
-    if(registered("location", "$rz:$fU", 2, 1)) {
-       ## is registered, keep alive handled in registrar
-      route(NAT_TEST_AND_CORRECT);
-       return;
-    } else {
-      route(PRESENCE_NAT);
-    }
-#!else
-    route(PRESENCE_NAT);
-#!endif
-
+    nat_keepalive();
+    force_rport();
 }
 
 ####### Presence Logic ########
@@ -77,7 +59,7 @@ route[HANDLE_SUBSCRIBE]
     if (is_method("SUBSCRIBE")) {
 
     #!ifdef NAT_TRAVERSAL_ROLE
-      route(PRESENCE_CHECK_NAT);
+      route(PRESENCE_NAT);
     #!endif
 
         if ($tU == $null) {