Resend signaling...

Hi all!

I have Kamailio 1.4.4 working fine with RTPproxy. I want make a pass of signaling:

ABC <-----> Kamailio <-----> DEF
Kamailio <-----> GHI
Kamailio <-----> JKM

So, Kamailio must to discriminate the $rU, but using RTPproxy, because I'm using NAT.

This is my kamailio.cfg

Code:

#--------------------------------------------------------# # PARAMETROS GENERALES #--------------------------------------------------------# debug=3 fork=yes log_stderror=yes check_via=no dns=no rev_dns=no port=5060 children=4 #--------------------------------------------------------# #--------------------------------------------------------# # CARGA DE MODULOS #--------------------------------------------------------# mpath="//lib/kamailio/modules/" loadmodule "mi_fifo.so" loadmodule "db_mysql.so" loadmodule "sl.so" loadmodule "tm.so" loadmodule "rr.so" loadmodule "maxfwd.so" loadmodule "usrloc.so" loadmodule "registrar.so" loadmodule "textops.so" loadmodule "nathelper.so" loadmodule "auth.so" loadmodule "auth_db.so" #--------------------------------------------------------# #--------------------------------------------------------# # CONFIGURACION DE LOS PARAMETROS #--------------------------------------------------------# #--- MI FIFO modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo") modparam("usrloc|auth_db","db_url","mysql://openser:openserrw@localhost/openser") #--- USRLOC modparam("usrloc", "db_mode", 0) modparam("usrloc", "db_mode", 2) modparam("usrloc", "nat_bflag", 6) #--- REGISTRAR modparam("registrar|nathelper", "received_avp", "$avp(i:42)") #--- AUTH modparam("auth_db", "calculate_ha1", yes) modparam("auth_db", "password_column", "password") #--- RR modparam("rr", "enable_full_lr", 1) #--- NATHELPER modparam("nathelper", "rtpproxy_sock", "udp:127.0.0.1:7890") modparam("nathelper", "natping_interval", 30) modparam("nathelper", "ping_nated_only", 1) modparam("nathelper", "sipping_bflag", 7) modparam("nathelper", "sipping_from", "sip:localhost") #--------------------------------------------------------# #--------------------------------------------------------# # RUTEOS #--------------------------------------------------------# route{ #--------------------------------------------------------# # SANITY #--------------------------------------------------------#    if (!mf_process_maxfwd_header("10")) {       sl_send_reply("483","Too Many Hops");       exit;    };    if (msg:len >=  2048 ) {       sl_send_reply("513", "Message too big");       exit;    }; #--------------------------------------------------------# #--------------------------------------------------------# # DETECCION DE NAT route(2); #--------------------------------------------------------# #--------------------------------------------------------#    if (!method=="REGISTER")       record_route();    if (loose_route()) {       append_hf("P-hint: rr-enforced\r\n");       route(1);    };    if (!uri==myself) {       append_hf("P-hint: outbound\r\n");       route(1);    }; #--------------------------------------------------------# #--------------------------------------------------------# # REGISTRACION #--------------------------------------------------------#    if (uri==myself) {       if (method=="REGISTER") {                    if (isflagset(5)) {             setbflag(6);             # if you want OPTIONS natpings uncomment next             # setbflag(7);          };          save("location");          exit;       };       if (!lookup("location")) {          sl_send_reply("404", "Not Found");          exit;       };       append_hf("P-hint: usrloc applied\r\n");    };    route(1); } #--------------------------------------------------------# #--------------------------------------------------------# # RUTEOS #--------------------------------------------------------# route[1] {    if (subst_uri('/(sip:.*);nat=yes/\1/')){       setbflag(6);    };    if (isflagset(5)||isbflagset(6)) {       route(3);    }    if (!t_relay()) {       sl_reply_error();    };    exit; } route[2]{    force_rport();    if (nat_uac_test("19")) {       if (method=="REGISTER") {          fix_nated_register();       } else {          fix_nated_contact();       };       setflag(5);    }; } route[3] {    if (is_method("BYE|CANCEL")) {       unforce_rtp_proxy();    } else if (is_method("INVITE")){       force_rtp_proxy();       t_on_failure("1");    };    if (isflagset(5))       search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');    t_on_reply("1"); } failure_route[1] {    if (isbflagset(6) || isflagset(5)) {       unforce_rtp_proxy();    } } route[4] {    log(1, "Reenvia a Mitel \n");    rewritehostport("192.168.2.1:5060");         exit; } route[5] {    log(1, "Reenvia a Offnet \n");    rewritehostport("192.168.3.1:5060");         exit; } route[6] {    log(1, "Reenvia a Cisco \n");    rewritehostport("192.168.4.1:5060");         exit; } #--------------------------------------------------------# onreply_route[1] {    if ((isflagset(5) || isbflagset(6)) && status=~"(183)|(2[0-9][0-9])") {       force_rtp_proxy();    }    search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');    if (isbflagset(6)) {       fix_nated_contact();    }    exit; }

So, what I want is detect the dialed number and resend by the right way.

Example:

if ($rU =~ "20[0-9]"){
route(4);
}

if ($rU =~ "30[0-9]"){
route(5);
}

if ($rU =~ "40[0-9]"){
route(6);
}

Where do I have to define this? How it should be?

thanks in advance.

At this moment, my CFG looks right this:

Code:

route[3] {         if (is_method("BYE|CANCEL")) {                 unforce_rtp_proxy();         } else if (is_method("INVITE")){                                if ($rU =~ "22[0-9]") {                         force_rtp_proxy();                         route(4);                 }                 force_rtp_proxy();                 t_on_failure("1");         };         if (isflagset(5))                 search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');         t_on_reply("1");    }          failure_route[1] {         if (isbflagset(6) || isflagset(5)) {                 unforce_rtp_proxy();         } } route[4] {         log(1, "Reenvia a Mitel \n");         t_relay("udp:192.168.2.1:5060");         t_on_reply("1");                  xlog("Script is at the end\n");         exit;          } #--------------------------------------------------------#

Something is missing, if I make a capture with ethereal, I can see a NOT FOUND message:

Code:

192.168.10.135 -> xx.xx.xx.xx SIP/SDP Request: INVITE sip:220@xx.xx.xx.xx, with session description xx.xx.xx.xx -> 192.168.10.135 SIP Status: 404 Not Found

So, it must to be wrong the place where I put my "DID" question.