Hi Ricardo,

The is a problem in your script. When you do diversion to GWs (h.323 / pstn), do it for all requests, not only for INVITES. In this particular case, the CANCEL must follow the same path as the INVITE.

Best regards, Marian Dumitru

Ricardo Martinez wrote:

Hello list Beside the BYE problem that i post in a past mail, i detected another weird behaivor of SER. When i made a call from a registered endpoint (64.76.148.242) to a PSTN-number through a PSTN-Gateway. The destination devices keep ringing even if i send a CANCEL message. I don't understand why. Here is the debug

U 64.76.148.242:5060 -> sersip.mydomain.com:5060 CANCEL sip:005622408196@sersip.mydomain.com SIP/2.0 Via: SIP/2.0/UDP 64.76.148.242:5060;branch=z9hG4bK1f42736da4462 From: sip:5555832351@sersip.mydomain.com;tag=1f42736da4 To: sip:005622408196@sersip.mydomain.com Call-ID: 1f629d42-2d9e-73aa-826d-0002a400f1e9@64.76.148.242 CSeq: 462 CANCEL Date: Wed, 01 Jun 2005 07:22:16 GMT User-Agent: AddPac SIP Gateway Content-Length: 0 Max-Forwards: 70

# U sersip.mydomain.com:5060 -> 64.76.148.242:5060 SIP/2.0 404 Not Found IT! Via: SIP/2.0/UDP 64.76.148.242:5060;branch=z9hG4bK1f42736da4462 From: sip:5555832351@sersip.mydomain.com;tag=1f42736da4 To: sip:005622408196@sersip.mydomain.com;tag=a6a1c5f60faecf035a1ae5b6e96e979a- 3932 Call-ID: 1f629d42-2d9e-73aa-826d-0002a400f1e9@64.76.148.242 CSeq: 462 CANCEL Server: Sip EXpress router (0.8.14 (i386/linux)) Content-Length: 0 Warning:392 sersip.mydomain.com:5060 "Noisy feedback tells: pid=16760 req_src_ip=64.76.148.242 req_src_port=5060 in_uri=sip:005622408196@sersip.mydomain.com out_uri=sip:005622408196@sersip.mydomain.com via_cnt==1"

It seems to be related with my past message. Can someone help me here, i'm very confused. Here is my ser.cfg. Thanks in advance.

# # $Id: ser.cfg,v 1.21.2.2 2003/10/13 22:53:06 jiri Exp $ # # simple quick-start config script #

# ----------- global configuration parameters ------------------------

debug=0 # debug level (cmd line: -dddddddddd) fork=yes log_stderror=yes # (cmd line: -E)

#Uncomment these lines to enter debugging mode #fork=no #log_stderror=yes

check_via=yes # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R) port=5060 #children=4 fifo="/tmp/ser_fifo" fifo_mode=0666

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use SQL database #loadmodule "/usr/local//lib/ser/modules/mysql.so"

loadmodule "/usr/local//lib/ser/modules/sl.so" loadmodule "/usr/local//lib/ser/modules/tm.so" loadmodule "/usr/local//lib/ser/modules/rr.so" loadmodule "/usr/local//lib/ser/modules/maxfwd.so" loadmodule "/usr/local//lib/ser/modules/usrloc.so" loadmodule "/usr/local//lib/ser/modules/registrar.so" loadmodule "/usr/local//lib/ser/modules/textops.so"

loadmodule "/usr/local//lib/ser/modules/exec.so"

# Para trabajar con NAT loadmodule "/usr/local//lib/ser/modules/mediaproxy.so" loadmodule "/usr/local//lib/ser/modules/domain.so" loadmodule "/usr/local//lib/ser/modules/dbtext.so"

# Uncomment this if you want digest authentication # mysql.so must be loaded ! loadmodule "/usr/local/lib/ser/modules/auth.so" #loadmodule "/usr/local/lib/ser/modules/auth_db.so"

loadmodule "/usr/local/lib/ser/modules/auth_radius.so" loadmodule "/usr/local/lib/ser/modules/group_radius.so" loadmodule "/usr/local/lib/ser/modules/acc.so"

# ----------------- setting module-specific parameters ---------------

# ----------------- setting module-specific parameters --------------- # -- rr params -- # add value to ;lr param to make some broken UAs happy modparam("rr", "enable_full_lr", 1)

# module authorization modparam("auth_radius","radius_config","/usr/local/etc/radiusclient/radiuscl ient.conf") modparam("auth_radius","service_type",15)

#module accounting modparam("acc","radius_config","/usr/local/etc/radiusclient/radiusclient.con f") modparam("acc","log_level",1) modparam("acc", "service_type", 15) modparam("acc", "radius_flag", 1) modparam("acc", "radius_missed_flag", 3) modparam("acc", "failed_transactions", 1) modparam("acc", "report_ack", 0)

#group radius modparam("group_radius","radius_config","/usr/local/etc/radiusclient/radiusc lient.conf") modparam("group_radius", "use_domain", 1)

#module mediaproxy modparam("mediaproxy", "natping_interval", 60) modparam("mediaproxy", "mediaproxy_socket", "/var/run/mediaproxy.sock") #modparam("mediaproxy", "sip_asymmetrics", "/usr/local/etc/ser/sip-asymmetrics-clients") #modparam("mediaproxy", "rtp_asymmetrics", "/usr/local/etc/ser/rtp-asymmetrics-clients") modparam("registrar", "nat_flag", 5)

#module domain modparam("domain", "db_url", "/usr/local/etc/ser/domaintables") modparam("domain", "domain_table", "domain") modparam("domain", "domain_col", "domain")

# ------------------------- request routing logic -------------------

# main routing logic

route {

    # initial sanity checks -- messages with
    # max_forwards==0, or excessively long requests
    if (!mf_process_maxfwd_header("10")) {
            sl_send_reply("483","Too Many Hops");
            break;
    };
    if ( msg:len > max_len ) {
            sl_send_reply("513", "Message too big");
            break;
    };

    # subsequent messages withing a dialog should take the
    # path determined by record-routing
    record_route();

    if (loose_route()) {
            if (method=="BYE" || method=="CANCEL")  {
                    log(1, "NAT: BYE o CANCEL recibido --> terminando la

sesion de media\n"); end_media_session(); setflag(1); }; t_relay(); break; };

    # Maracamos las llamadas para accounting
    setflag(1);

    if (client_nat_test("1")) {
            log(1, "NAT: Requerimiento de IP privada --> fixed contact

(en rutina principal)\n"); setflag(5); force_rport(); fix_contact(); append_hf("P-hint: fixed NAT contact for request\r\n"); };

    # (in case, it does not work, use the following command
    # with proper names and addresses in it)

if (uri==myself) { if (method=="REGISTER") { # Challenge/Response if ( !radius_www_authorize("")) { www_challenge("", "1"); break; };

            # Mandamos un mensaje de Log si es que un cliente NATEADO se

registro. if (isflagset(5)) { log(1, "NAT: Cliente NAT'eado registrado (dentro del chequeo de REGISTER)\n"); };

            save("location");
            break;
    }; # FIN DE CHEQUEO DE REGISTRO

    # lookup("aliases");

    # CHEQUEO EL INVITE DE LA LLAMADA A REALIZARSE SOLO SI ES DE MI

DOMINIO SIPPROXY.MAGENTA.CL if (method=="INVITE" && search("^From: sip:.*@64.76.148.231")) { if ( !radius_proxy_authorize("")) { proxy_challenge("", "1"); log (1, "LOG: Llamada no AUTORIZADA\n"); break; }; };

    if ( (uri=~"^sip:0.*@.*") ){
            if (method=="INVITE")  {
                    log(1,"FORWARDING : Llamada hacia plataforma

H.323\n"); route(3); break; }; }; # Llamadas hacia dominio H.323 (todo lo que comienza con 111, 777, 333 y 00xxxxxxxx) if ( (uri=~"^sip:111.*@.*") | (uri=~"^sip:777.*@.*") | (uri=~"^sip:333.*@.*") ){ if (method=="INVITE") { log(1,"FORWARDING : Llamada hacia plataforma H.323\n"); route(1); break; }; };

    # Llamadas SIP locales
    if (!lookup("location")) { #Usuarios que no estan en "location"

database. route(4); break; };

    setflag(3);

    # Manejo para llamadas NAT'das
    if (method=="INVITE") {
            log(1, "ROUTING: Reply processing (online user) enabled to

handle NAT'd resonses\n"); t_on_reply("1"); if ( (isflagset(5)) && (method=="INVITE" || method=="ACK") ) { log(1, "NAT: Invite received --> enabling media proxy (else del lookup 2do if)\n"); use_media_proxy(); append_hf("P-hint: request forced to media proxy\r\n"); }; };

    # Do it ? (Ricardo Martinez)

}; append_hf("P-hint: USRLOC\r\n");

    if (!t_relay()) {
            sl_reply_error();
            break;
    };

} /* end of initial routing logic */

#--------- Route 1 hacia SIPQUEST ------------------------------- route[1] { # send it out now; use stateful forwarding as it works reliably # even for UDP2TCP

    # Esta NATEADO?
    if (isflagset(5))  {
            log(1, "NAT: At least one participant NAT'd --> enable reply

processing (hacia GW)\n"); t_on_reply("1"); if (method=="INVITE") { log(1, "NAT: Invite received --> enabling proxied media session (hacia GW)\n"); setflag(1); use_media_proxy(); }; };

    rewritehostport("sipquest.mydomain.com:5060");
    append_hf("P-hint: GATEWAY\r\n");

    if (!t_relay()) {
            sl_reply_error();
            break;
    };

}

#------- Route 3 : Trafico de Internet hacia la PSTN -------------------

route[3] { setflag(1);

    #Esta NETEADO?

    if (isflagset(5))  {
            log(1, "NAT: At least one participant NAT'd --> enable reply

processing (hacia GW)\n"); t_on_reply("1"); if (method=="INVITE") { log(1, "NAT: Invite received --> enabling proxied media session (hacia GW)\n"); #setflag(1); use_media_proxy(); }; };

    rewritehostport("gw1.mydomain.com:5060");
    append_hf("P-hint: GATEWAY\r\n");

    t_relay();
    break;

}

#------ Route 4 : Llamadas a usuarios Off-line ------------------------

route[4] {

    if (!t_newtran()) {
            sl_reply_error();
    };

    if (!t_reply("404", "Not Found IT!")) {
            sl_reply_error();
    };
    break;

}

# ---------------------------- Begin On-Reply Routes

onreply_route[1] { # If we've got here, it's because we've previously passed through a block # which handles NAT requests and has set a t_on_reply condition. DB 03-08-2004 if (status =~ "(183)|(2[0-9][0-9])") { if (client_nat_test("1") || isflagset(5)) { log(1, "NAT: Reply from NAT'd client --> fixing contact (onreply_route)\n"); fix_contact(); use_media_proxy(); setflag(5); }; log(1, "NAT: NAT'd transaction answered --> enabling media proxy (onreply_route)\n"); # use_media_proxy(); };

}

# ------------------------------ End On-Reply Routes

Ricardo.-

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