[Serusers] 408 to Caller UA when CANCEL to Callee

Iqbal iqbal at gigo.co.uk
Fri Sep 16 15:34:06 CEST 2005


:-), Friday, heavy lunch

Iqbal

Steve Blair wrote:

>
> Look at the middle of his routing statements. There is the following 
> section of code :
>
>      ---- cut here ----
>
>          } else if (uri=~"^sip:500@") {
>                       log(1, "Accessing Voicemail\n");
>                       setflag(1);
>                       rewriteport("5065");                } else if 
> (uri=~"^si"^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");
>
>     --- end cut ----
>
> See the line beginning with "rewriteport("5065")" ?
>
>
> Iqbal wrote:
>
>> did I miss it...where ?
>>
>> Steve Blair wrote:
>>
>>>
>>> You config file shows "(uri=~"^si"^sip:3[0-9]*@203.197.212.208") " 
>>> is this really
>>> what you meant? I think the first "^si" is a typo is it not?
>>>
>>> -Steve
>>>
>>> Iqbal wrote:
>>>
>>>> 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
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Serusers mailing list
>>>>> serusers at lists.iptel.org
>>>>> http://lists.iptel.org/mailman/listinfo/serusers
>>>>>
>>>>> .
>>>>>
>>>>
>>>> _______________________________________________
>>>> Serusers mailing list
>>>> serusers at lists.iptel.org
>>>> http://lists.iptel.org/mailman/listinfo/serusers
>>>
>>>
>>>
>>>
>>>
>




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