Hi,

if you do not want to store the usr-location-info on that Kamailio, you can accomplish that by using the nat_traversal module in Kamailio: http://www.kamailio.org/docs/modules/devel/modules/nat_traversal.html

An alternative approach is doing this directly from Script:

modparam("htable", "htable", "natping=>size=8;autoexpire=3600;")

# time interval set to 10 seconds modparam("rtimer", "timer", "name=NATPING;interval=10;mode=1;") modparam("rtimer", "exec", "timer=NATPING;route=NATPING")

onreply_route[REGISTER_reply] { if (t_check_status("200")) { if ($T_req($pr) == "udp") { $var(ouri) = "sip:"+$T_req($si)+":"+$T_req($sp); $sht(natping=>$var(ouri)) = $(T_req($ct){nameaddr.uri}); } } exit; }

# NATPING Route: # ##################################################################### route[NATPING] { sht_iterator_start("nat_iterator", "natping"); while(sht_iterator_next("nat_iterator")) { xlog("OPTIONS to $shtitval(nat_iterator) via $shtitkey(nat_iterator)...\n"); $uac_req(method) = "OPTIONS"; $uac_req(ruri) = $shtitval(nat_iterator); $uac_req(furi) = "sip:server"; $uac_req(turi) = $shtitval(nat_iterator); $uac_req(ouri) = $shtitkey(nat_iterator); $uac_req(evroute) = 1; uac_req_send(); } sht_iterator_end("nat_iterator"); }

event_route[uac:reply] { xlog("request sent to $uac_req(ruri) completed with code: $uac_req(evcode), Type $uac_req(evtype)\n"); if (($uac_req(evtype) != 1)) { $sht(natping=>$uac_req(ouri)) = $null; } }

Thanks, Carsten

2015-06-18 17:03 GMT+02:00 Nelson Migliaro eng.migliaro@gmail.com:

Hello,

Is there a way to ping a device using Kamailio.

In my scenario I need to access a Kamailio located in my DMZ over a firewall that is only open in LAN > DMZ direction. It is close in the other way round.

In my current configuration I keep the link open using Asterisk qualify option in SIP. I would like to replace Astersik located in LAN with Kamailio thus I need to keep the link open.

I know there is an option using dispatch but I would like to avoid using this module in order to keep it simple.

Is there a "simple embedded function" in order to accomplish this.

thank you

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