[SR-Users] CANCEL not matching INVITES !

Sammy Govind govoiper at gmail.com
Tue Nov 29 05:07:05 CET 2011


Hello again,

Please see the attached wireshark trace, I tried for a sipgrep trace but
couldn't somehow. I hope this will get me some clue on what I'm doing wrong.

This is a setup with Kamailio in front of Asterisk Servers. Kamailio is
multihomed and MS are on private IPs, all the calls are routed to MSs and
then comeback for further dial-outs.

Please see the Continuous CANCEL requests which aren't terminating the call.

Thanks,
Sammy.

On Mon, Nov 28, 2011 at 4:41 PM, Sammy Govind <govoiper at gmail.com> wrote:

> Thanks for your reply I will attach the wireshark traces as soon as I get
> to my workstation.
>
> BR,
> Sammy.
>
>
> On Mon, Nov 28, 2011 at 3:33 PM, Daniel-Constantin Mierla <
> miconda at gmail.com> wrote:
>
>>  Hello,
>>
>> send the ngrep trace of such call, from the initial INVITE, you can use:
>>
>> ngrep -d any -qt -W byline port 5060
>>
>> The sip trace will help to see what is wrong with that CANCEL.
>>
>> Cheers,
>> Daniel
>>
>>
>> On 11/28/11 7:19 AM, Sammy Govind wrote:
>>
>> Anyone please help.
>>
>> On Sat, Nov 26, 2011 at 10:39 PM, Sammy Govind <govoiper at gmail.com>wrote:
>>
>>> Hello list,
>>>
>>>  I'm using Kamailio 3.1.5 in front of asterisk servers. Kamailio
>>> handles all the SIP registrations. Calls from SIP phones are forwarded to
>>> asterisks and then dialled out to Kamailio.
>>>
>>>  root at SBCserver:~# kamailio -V
>>> version: kamailio 3.1.5 (x86_64/linux) 76fff5
>>> flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS,
>>> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC,
>>> DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE,
>>> USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
>>> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
>>> MAX_URI_SIZE 1024, BUF_SIZE 65535, PKG_SIZE 4MB
>>> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
>>> id: 76fff5
>>> compiled on 08:21:33 Oct 27 2011 with gcc 4.6.1
>>> root at SBCserver:~#
>>>
>>>
>>>  Problem:
>>> When call is initiated from a softphone and is in ringing phase, CANCEL
>>> just don't work. I've done some initial debugging and the following piece
>>> of code in main route is failing.
>>>
>>>  # CANCEL processing
>>> if (is_method("CANCEL"))
>>> {
>>>      xlog("L_NOTICE","$rm from $fu (IP:$si:$sp) ---CAPTURED IN
>>> MAIN---\n");
>>>      if (t_check_trans()){
>>>         t_relay();
>>>         xlog("L_NOTICE","$rm from $fu (IP:$si:$sp) ---CHECK TRANS
>>> TRUE---\n");
>>>      }
>>>      xlog("L_NOTICE","$rm from $fu (IP:$si:$sp) ---CHECK TRANS
>>> FALSE---\n");
>>>      exit;
>>> }
>>>
>>>  Also the CANCEL fails the has_totag() condition !
>>>
>>>  The same Call CANCEL scenario works fine for any client on Public IP !
>>>
>>>  Hope to get some pointers for the solution.
>>>
>>>  Regards,
>>> Sammy.
>>>
>>
>>
>>
>> _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>> --
>> Daniel-Constantin Mierla -- http://www.asipto.com
>> Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kathttp://linkedin.com/in/miconda -- http://twitter.com/miconda
>>
>>
>
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