[Serusers] bad call flow

[Todor]

10x Ricardo

it is working now


  ----- Original Message ----- 
  From: Ricardo Martinez 
  To: 'Todor' ; serusers at lists.iptel.org 
  Sent: Thursday, February 10, 2005 3:27 PM
  Subject: RE: [Serusers] bad call flow


  Hello.
      I think there is a problen with your configuration file.
      You have : 

  if (method=="INVITE") || (method=="CANCEL") {
             # Uncomment this if you want to use digest authentication
             if (!radius_www_authorize("")) {
                   www_challenge("", "0");
                   break;
             }; 

             record_route();
             rewritehostport("cisco_sip_gw_ip:5060");
             if (!t_relay()) {
                   sl_reply_error();
             };
             break;
       };


  so you're not relaying all the SIP messages,  maybe this can work : 

  if (method=="INVITE") || (method=="CANCEL") {
             # Uncomment this if you want to use digest authentication
             if (!radius_www_authorize("")) {
                   www_challenge("", "0");
                   break;
             }; 
  };

  record_route();
  rewritehostport("cisco_sip_gw_ip:5060");
             
  if (!t_relay()) {
      sl_reply_error();
      break;
      };

  Hope this work.
  Good luck.!!

  Ricardo Martinez.-

    -----Mensaje original-----
    De: Todor [mailto:todorakis at gmail.com]
    Enviado el: Jueves, 10 de Febrero de 2005 8:15
    Para: serusers at lists.iptel.org
    Asunto: [Serusers] bad call flow


    Hi All,

    I have a serious problem with SIP call flow over SER. 
    My SER don't retransmit ACK first and after that don't retransmit BYE message, too.
    Can any one advice me? what can be a reason? 
    Here are call flow and ser.cfg.



    SIPPHONE------------------------SER--------------------------CISCO SIP GW
    |-------------INVITE------------>|                                |
    |<----------TRying---------------|                                |
    |                                |-----------INVITE-------------->|
    |                                |<----------TRying---------------|
    |                                |<------------183----------------|
    |<------------183----------------|                                |                                  
    |                                |<-------------OK----------------|
    |---------------ther is two way RTP channel ----------------------|
    |<-------------OK----------------|                                |
    |--------------ACK-------------->|                                |                                   
    |                                |<-------------OK----------------|
    |<-------------OK----------------|                                |
    |--------------ACK-------------->|                                |
    |                                |<-------------OK----------------|
    |<-------------OK----------------|                                |
    |--------------ACK-------------->|                                |
    |                                |<-------------OK----------------|
    |<-------------OK----------------|                                |
    |--------------ACK-------------->|   SER don't retransmit ACK     |
    |                                | and Cisco timedout after 19sec |
    |                                |<-------------BYE---------------|
    |                                |<-------------BYE---------------|
    |                                |<-------------BYE---------------|
    |     SER don't retransmit BYE   |<-------------BYE---------------|
    |                                |<-------------BYE---------------|




    #
    # $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei Exp $
    # ----------- global configuration parameters ------------------------

    debug=8
    fork=yes
    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 ----------------------------------
    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/auth.so"
    loadmodule "/usr/local/lib/ser/modules/auth_radius.so"

    # ----------------- setting module-specific parameters ---------------
    modparam("usrloc", "db_mode",   0)
    modparam("rr", "enable_full_lr", 1)
    # -------------------------  request routing logic -------------------

    route{

         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;
         };

         # authenticate register message using radius
         if (method=="REGISTER") {
               # Uncomment this if you want to use digest authentication
               if (!radius_www_authorize("")) {
                     www_challenge("", "0");
                     break;
               };
               save("location");
               break;
         };

         # route (proxy) invite message to gateway
         if (method=="INVITE") || (method=="CANCEL") {
               # Uncomment this if you want to use digest authentication
               if (!radius_www_authorize("")) {
                     www_challenge("", "0");
                     break;
               };

               record_route();
               rewritehostport("cisco_sip_gw_ip:5060");
               if (!t_relay()) {
                     sl_reply_error();
               };
               break;
         };
    }
       
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