[Serusers] Failed to call to PSTN

[Wayne Chen]

Thanks for quick response from Srbislav.
I tried the same method, but still got "404 not found". It looks that the
call meet the "if (!lookup("location"))" condition.

Does the placement of IF condition matter?

Thanks & Regards,
Wayne

On 1/4/2005 11:35 PM, "Srbislav Cvetkovic" <srbislav at city-net.com> wrote:

> 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
>> 
>> _______________________________________________
>> Serusers mailing list
>> serusers at lists.iptel.org
>> http://lists.iptel.org/mailman/listinfo/serusers
>> 
> 
> Srbo Cvetkovic                  | CityNet, Inc.
> srbo at city-net.com            | Pittsburgh, PA
> voice: 412.481.5406         | fax: 412.431.1315
> 
>