[Serusers] a question about "cancel" in forwarding scenario

[Greger V. Teigre]

The internal SER timer hits and the request times out (the request is not 
terminated).
See SER-GettingStarted doc at ONsip.org for a full example of call features 
like forwarding.
g-)
----- Original Message ----- 
From: "zhangshuai" <zhangshuai at goldentek.biz>
To: "serusers" <serusers at lists.iptel.org>
Cc: "wuyuan" <wuyuan at goldentek.biz>
Sent: Friday, February 10, 2006 11:18 AM
Subject: [Serusers] a question about "cancel" in forwarding scenario


> Dear All,
>
>
> I want to make use of avpops module to achieve forward on-no-reply. When 
> ua1 calls ua2 and ua2 is off-line, or busy, or doesn't answer the phone, 
> the invite should be forwarded to ua3 and ua3 begins ringing.
>
> In my tests, first, ua1 sends "cancel" when ua2 is ringing. Ua1 receives 
> "487 Request Terminated" from SER. Second, ua1 sends "cancel" when ua3 is 
> ringing. So, theoretically, ua1 should receive "487 Request Terminated" 
> after "200 canceling" from SER, right? But, ua1 received "408 Request 
> Timeout" instead. So strange. How come?
>
> I think something is wrong with my ser.cfg. Could anyone help me about 
> this? Thanks in advance.
>
> Here is my ser.cfg:
>
> # ------------------ 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/textops.so"
> loadmodule "/usr/local/lib/ser/modules/avp.so"
> loadmodule "/usr/local/lib/ser/modules/acc.so"
> loadmodule "/usr/local/lib/ser/modules/mysql.so"
> loadmodule "/usr/local/lib/ser/modules/dbtext.so"
> loadmodule "/usr/local/lib/ser/modules/avpops.so"
> #loadmodule "/usr/local/lib/ser/modules/postgres.so"
> #loadmodule "/usr/local/lib/ser/modules/flatstore.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/uri_radius.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", 1)
>
> # -- 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)
> modparam("tm", "fr_timer", 10 )
> modparam("tm", "fr_inv_timer", 20)
> modparam("tm", "noisy_ctimer", 1)
>
> modparam("auth_radius|uri_radius|group_radius", "radius_config", 
> "/usr/local/etc/radiusclient-ng/radiusclient.conf")
>
> modparam("avpops","avp_url","mysql://ser:heslo@localhost/ser")
> modparam("avpops","avp_table","usr_preferences")
> # -------------------------  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 >=  2048 ) {
>                sl_send_reply("513", "Message too big");
>                break;
>        };
>
>        if (!method=="REGISTER") record_route();
>
>        if (loose_route()) {
>                t_relay();
>                break;
>        };
>
>        if (method=="INVITE") {
>                lookup("location");
>                #if (!lookup("location")) {
>             #       sl_send_reply("404", "Not Found");
>         #       break;
>             #};
>        }
>
>     if (method=="REGISTER") {
>         log("REGISTER\n");
>                if (!radius_www_authorize("localhost.localdomain")) {
>                         www_challenge("localhost.localdomain", "0");
>                         break;
>                };
>                save("location");
>         break;
>     };
>
>        if (method=="INVITE") {
>                if (!radius_proxy_authorize("localhost.localdomain")) {
>                        proxy_challenge("localhost.localdomain", "1");
>                        break;
>                };
>        }
>
>     # if we do not get a positive reply, continue at failure_route[1]
>        t_on_failure("1");
>     # forward the request to all destinations in destination set now
>     t_relay();
>
>     #if (!t_relay()) {
>     #   sl_reply_error();
>     #};
> }
>
> failure_route[1] {
>
>        #when caller cancel, terminate the call
>     if (t_check_status("487")) {
>       t_reply("487", "Request Terminated");
>       break;
>     };
>
>     if ( ( avp_db_load("$ruri","s:redirect_on_failure")  && 
> avp_check("redirect_on_failure","eq/i:1"))) {
>       # User need to forward
>       log(1, "User wants redirection.\n");
>       if ( ( avp_db_load("$ruri","s:redirectnumber") && 
> !avp_check("redirectnumber","re/^$"))) {
>                        log(1,"first redirect\n");
>                        #avp_print();
>             attr2uri("redirect number");
>                        lookup("location");
>             append_branch();
>             #t_on_failure("2");
>             t_relay();
>       }
>       else {
>             t_reply("408", "TimeOut");
>             break;
>       };
>     }
>     else {
>       t_reply("404", "Not Found");
>       break;
>     };
> }
>
>
> _______________________________________________
> Serusers mailing list
> serusers at lists.iptel.org
> http://lists.iptel.org/mailman/listinfo/serusers
>