Re: [Serusers] Failed to call to PSTN

hi chen,

Here is how i do it:

# Route to PSTN Gateways(s) if (uri=~"^sip:9[0-9]*@XX.XX.XX.XX") { ## This assumes that the caller is log("Forwarding to PSTN\n"); ## registered in our realm strip(1); rewritehostport("PSTN-GATEWAY-IP:5060"); forward(uri:host, uri:port); break; };

On Jan 4, 2005, at 10:27 AM, Wayne Chen wrote:

Dear sirs,

I have a AS5300 setup as PSTN and it works fine to place from PSTN to SIP gateway in IP network. Now I want to place calls to PSTN with prefix '2' and the prefix should be striped before forward to PSTN, but I always get "404 not found" from SER server. Could anyone help me to debug my setting on ser.cfg? I attached my ser.cfg file as below:

# # $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei Exp $ # # simple quick-start config script #

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

#debug=3 # debug level (cmd line: -dddddddddd) #fork=yes #log_stderror=no # (cmd line: -E)

/* Uncomment these lines to enter debugging mode debug=7 fork=no log_stderror=yes */

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

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

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

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

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

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

# -- usrloc params --

#modparam("usrloc", "db_mode", 0)

# Uncomment this if you want to use SQL database # for persistent storage and comment the previous line modparam("usrloc", "db_mode", 2)

# -- auth params -- # Uncomment if you are using auth module # modparam("auth_db", "calculate_ha1", yes) # # If you set "calculate_ha1" parameter to yes (which true in this config), # uncomment also the following parameter) # modparam("auth_db", "password_column", "password")

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

# ------------------------- 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;
  };

  # we record-route all messages -- to make sure that
  # subsequent messages will go through our proxy; that's
  # particularly good if upstream and downstream entities
  # use different transport protocol
  record_route();
  # loose-route processing
  if (loose_route()) {
        t_relay();
        break;
  };

  # if the request is for other domain use UsrLoc
  # (in case, it does not work, use the following command
  # with proper names and addresses in it)
  if (uri==myself) {

        if (method=="REGISTER") {

# Uncomment this if you want to use digest authentication # if (!www_authorize("iptel.org", "subscriber")) { # www_challenge("iptel.org", "0"); # break; # };

              save("location");
              break;
        };

        # native SIP destinations are handled using our USRLOC DB
        if (!lookup("location")) {
              sl_send_reply("404", "Not Found");
              break;
        };
  };

    #handle PSTN calls
    if (uri=~ "^sip:2"){
            log(1,"Forwarding to PSTN/n");
            strip(1);
            rewritehostport("220.XX.XX.XX:5060");
            if (!t_relay()) {
                    sl_reply_error();
                    break;
            };
    };



  # forward to current uri now; use stateful forwarding; that
  # works reliably even if we forward from TCP to UDP
  if (!t_relay()) {
        sl_reply_error();
  };

}

I also try t_relay_to_udp() and forward(), but both can't help to forward call to PSTN gateway.

Regards, Wayne

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Srbo Cvetkovic | CityNet, Inc. srbo@city-net.com | Pittsburgh, PA voice: 412.481.5406 | fax: 412.431.1315