avoid duplicated pings

remove udp check as nat_traversal explicitly checks for udp

kamailio/presence-role.cfg

@@ -11,7 +11,6 @@
 #!trydef KZ_PRESENCE_REQUEST_RESUBSCRIBE_PROBE 0
 #!trydef KZ_PRESENCE_REQUEST_PROBE 1
 #!trydef KZ_PRESENCE_NO_TARGETS_LOG_LEVEL L_DBG
-#!trydef KZ_PRESENCE_KEEPALIVE_UDP_ONLY 0
 
 modparam("htable", "htable", "p=>size=32;autoexpire=3600;")
 modparam("htable", "htable", "first=>size=32;autoexpire=3600;initval =0;updateexpire=1;")
@@ -71,7 +70,6 @@ kazoo.presence_request_resubscribe_probe = KZ_PRESENCE_REQUEST_RESUBSCRIBE_PROBE
 kazoo.presence_ignore_status_probe_resp = KZ_PRESENCE_IGNORE_STATUS_PROBE_RESP descr "ignore online/offline probe replies"
 kazoo.presence_max_call_per_presentity = KZ_PRESENCE_MAX_CALL_PER_PRESENTITY descr "max number of calls per presentity"
 kazoo.presence_no_targets_log_level = KZ_PRESENCE_NO_TARGETS_LOG_LEVEL descr "when a presence event is received and there no targets we can log at another level"
-kazoo.presence_keepalive_udp_only = KZ_PRESENCE_KEEPALIVE_UDP_ONLY descr "should we keepalive nat phones for udp only"
 
 #!include_file "presence-query.cfg"
 #!include_file "presence-notify.cfg"
@@ -84,8 +82,9 @@ kazoo.presence_keepalive_udp_only = KZ_PRESENCE_KEEPALIVE_UDP_ONLY descr "should
 route[PRESENCE_NAT]
 {
    if (isflagset(FLT_NATS)) {
-       if(!( ($sel(cfg_get.kazoo.presence_keepalive_udp_only) == 1 && $proto != "udp")
-             || ($proto =="ws" || $proto == "wss")
+       $xavp(regcfg=>match_received) = $su;
+       if(!( ($proto != "udp") ||
+             (registered("location", "$rz:$Au", 2, 1) == 1)
            )) {
          nat_keepalive();
        }