[Serusers] 408 to Caller UA when CANCEL to Callee

Tulika Pradhan tulikapradhan at hotmail.com
Sat Sep 17 07:06:34 CEST 2005


hello,

that was a problem when i did cut and paste from the ser.cfg, it should be 
as below,

} else if (uri=~"^sip:500@") {
                       log(1, "Accessing Voicemail\n");
                       setflag(1);
                       rewriteport("5065");
                       t_relay_to_udp("192.168.1.201","5065");
                       break;

} else if (uri=~"^sip:3[0-9]*@192.168.1.201") {
                               # 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();
}




-tulika

>From: Iqbal <iqbal at gigo.co.uk>
>To: Steve Blair <blairs at isc.upenn.edu>
>CC: 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 14:34:06 +0100
>
>:-), 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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