[Serusers] 408 to Caller UA when CANCEL to Callee

Iqbal iqbal at gigo.co.uk
Fri Sep 16 13:13:45 CEST 2005


what happens if you increase your timeout values, i.e send cancel before 
you get the timeout

Iqbal

Tulika Pradhan wrote:

>
> my ser.cfg file is attached below.
>
> any help/pointers for what the problem may be would be great.
>
> the problem comes when i dial anynumber starting with '3'
>
> i want 8001211 to be dialed and if there is failure, then 8001210 to 
> be dialed.
>
> thanks,
>
> tulika
>
> #
> # $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"
> loadmodule "/usr/lib/ser/modules/acc.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"
> loadmodule "/usr/lib/ser/modules/exec.so"
> loadmodule "/usr/lib/ser/modules/uri.so"
> loadmodule "/usr/lib/ser/modules/textops.so"
> loadmodule "/usr/lib/ser/modules/xlog.so"
> # ----------------- setting module-specific parameters ---------------
>
> # -- usrloc params --
>
> modparam("usrloc", "db_mode", 2)
>
> # -- auth params --
> modparam("auth_db", "db_url", "sql://ser:heslo@localhost/ser")
> modparam("auth_db", "calculate_ha1", 1)
> #
> # 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("acc", "log_level", 1)
> modparam("acc", "db_flag", 1)
> modparam("tm", "fr_inv_timer", 15)
> modparam("tm", "fr_timer", 10)
> # 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        # 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) record_route();
>        if (uri==myself) {
>         if (method=="REGISTER") {
>
>                save("location");
>                break;
>         };
>
>         if (method==INVITE) {
>                if (uri=~"^sip:0[0-9]*@") {
>                        log(1, "beginning with 0\n");
>                        rewritehost("192.168.1.201");
>                        rewriteport("5060");
>                        t_relay_to_udp("192.168.1.201","5065");
>                        break;
>                } else if (uri=~"^sip:500@") {
>                        log(1, "Accessing Voicemail\n");
>                        setflag(1);
>                        rewriteport("5065");                } else if 
> (uri=~"^sip:3[0-9]*@203.197.212.208") {
>                                # call hunt numbers beginning with 3
>                                 log(1, "beginning with 3\n");
>                                seturi("sip:8001211 at 192.168.1.201");
>                                append_hf("P-hint: call hunt\r\n");
>                                xlog("L_ERR", "time [%Tf] method <%rm> 
> r-uri <%ru> <%tu>\n");
>                                t_on_failure("1");
>                                t_relay();
>
>                }
>                if (!lookup("location")) {
>                    if (search("(P-hint): call hunt")) {
>                                        log(1, "Call Hunt number not in 
> location- Hangup\n");
>                                        #exec_msg("echo $SIP_OUSER >> 
> /root/temp; echo $SIP_USER >> /root/temp; echo $SIP_OURI >> 
> /root/temp; echo $SIP_RURI >> /root/temp");
>                                        # goto next number
>                                        
> exec_dset("/etc/ser/getnextnumber1 $SIP_OUSER; echo>/dev/null;");
>                                        xlog("L_ERR", "time [%Tf] 
> method <%rm> r-uri <%ru> <%tu>\n");
>                                        t_relay();
>                   } else  {
>                        log(1, "Asterisk forwarding as user not logged 
> in..\n");
>                        rewritehost("192.168.1.201");
>                        rewriteport("5065");
>                        t_relay_to_udp("192.168.1.201","5065");
>                        break;
>                   }
>
>                }
>               t_on_failure("1");
>
>         }
>       }
>       if (!t_relay()) {
>                sl_reply_error();
>       };
> }
>
> failure_route[1] {
>        log(1,"Failure 1\n");
>
>        if (search("(P-hint): call hunt")) {
>                log(1, "Call Hunt number failure - Hangup\n");
>                append_branch("sip:8001210 at 192.168.1.201");
>                t_on_failure("2");
>                xlog("L_ERR", "time [%Tf] method <%rm> r-uri <%ru> 
> <%tu>\n");
>                t_relay();
>        } else {
>                log(1, "Asterisk forwarding ..\n");
>                revert_uri();
>                rewritehostport(192.168.1.201:5065");
>                append_branch();
>                t_relay();
>        }
> }
>
> failure_route[2] {
>        #
>        log (1, "in failure route 2\n");
> }
>
>         }
>       }
>       if (!t_relay()) {
>
>                        t_relay_to_udp("192.168.1.201","5065");
>                        break;
>
>        if (method!="REGISTER") record_route();
>
>
>
>
>
>
>
>> From: "Greger V. Teigre" <greger at teigre.com>
>> To: "Tulika Pradhan" <tulikapradhan at hotmail.com>, <serusers at lists.iptel.org>
>> Subject: Re: [Serusers] 408 to Caller UA when CANCEL to Callee
>> Date: Fri, 16 Sep 2005 08:36:53 +0200
>>
>> Tulika,
>> This is not a function of SER, but your ser.cfg file.  We have just 
>> released a new Getting Started document at onsip.org that you may use 
>> as a reference to identify why your ser.cfg causes a 408 to be sent.
>> g-)
>>
>> Tulika Pradhan wrote:
>>
>>> hi,
>>>
>>> i am facing the following situation.
>>>
>>> UA1 calls a user(UA2)  who does not answer. the control comes to
>>> failure_route where i try another UA (UA3). but as UA3 rings, SER
>>> sends 408 Request timeout to UA1 and call gets disconnected.
>>>
>>> this is the SIP message flow.
>>>
>>> UA1                     SER                      UA2
>>> UA3
>>> INVITE---------------->
>>>                               INVITE-------------->
>>>                                <----------------TRYING
>>>                                <----------------RINGING
>>> <------------------RINGING
>>>
>>>
>>>                              CANCEL-------------->
>>> <---------------------408
>>>
>>> INVITE---------------------------------------->
>>>                               <---------------------487
>>>                              ACK------------------->
>>>                                <-----------------------OK
>>>
>>> <-------------------------------------------TRYING
>>>
>>> <--------------------------------------------RINGING
>>>
>>> (but UA already has got the busy tone) and does not hear this ringing.
>>>
>>> if 408 was not sent to UA1, then the call could have been established.
>>>
>>> what is going wrong,
>>>
>>> regards,
>>>
>>> tulika
>>>
>>>
>>> _______________________________________________
>>> Serusers mailing list
>>> serusers at lists.iptel.org
>>> http://lists.iptel.org/mailman/listinfo/serusers
>>
>>
>
>
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>
> .
>




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