[SR-Users] Multiple INVITEs and discarded call_control

[Mino Haluz]

Any updates on this? I updated callcontrol which has some bug fixed:

callcontrol (2.0.14) unstable; urgency=low

  * Avoid handling requests with a duplicated CallID

But it still does not work. The callcontrol is executed 3 times and in
the config, I have only once the mark "xxx" printed in syslog (see the
config below).
t_newtran before calling callcontrol does not work as well - it is
executed 3 times.

On Mon, Jun 13, 2011 at 4:29 PM, Mino Haluz <mino.haluz at gmail.com> wrote:
> It does not work, t_newtran always returns success, so it will never
> absorb the retransmission.
> So what I did was:
>
>           if ($sht(a=>$ci::retrans) == 0) {
>               $sht(a=>$ci::retrans) = 1;
>           } else {
>               exit();
>           }
>
>          xlog("L_INFO","XLOG: xxx");
>          call_control();
>
> I prepared sipp scenario which generates 3 INVITEs separated by 200ms.
> It will gives me this:
>
> Jun 13 16:07:04 no-testing /sbin/kamailio[5274]: INFO: <script>: XLOG: xxx
> Jun 13 16:07:04 no-testing /sbin/kamailio[5273]: WARNING: call_control
> [call_control.c:1156]: dialog to trace controlled call was not
> created. discarding callcontrol.
> Jun 13 16:07:04 no-testing /sbin/kamailio[5275]: WARNING: call_control
> [call_control.c:1156]: dialog to trace controlled call was not
> created. discarding callcontrol.
>
> So, the first INVITE was processed by call_control, another 2 were
> not. But WHAT executed those two call_control is some kind of miracle
> for me ... Callcontrol module is somehow executed at the beginning of
> the config file where the values are set or why?
>
> This is what I always set at the beginning:
>
> modparam("dialog", "dlg_flag", 4)
> modparam("call_control", "diverter_avp_id", 256)                #used
> to set billing party. default is From uri
> modparam("call_control", "canonical_uri_avp", "$avp(s:can_uri)")
>
>
>
> On Mon, Jun 6, 2011 at 10:16 PM, Daniel-Constantin Mierla
> <miconda at gmail.com> wrote:
>> Hello,
>>
>> if it is a retransmission, then just do t_newtran() in your config file
>> before handling it to call control to be sure the retransmitted requests are
>> absorbed.
>> http://kamailio.org/docs/modules/stable/modules/tm.html#t_newtran
>>
>> Cheers,
>> Daniel
>>
>> On 6/6/11 4:29 PM, Mino Haluz wrote:
>>
>> Hi,
>> my kamailio server is receiving from some customers 3 identical INVITEs when
>> call is initiated (separated by 200ms). Those 3 INVITEs are making a big
>> problem with call_control:
>> WARNING: call_control [call_control.c:1156]: dialog to trace controlled call
>> was not created. discarding callcontrol.
>> That is why, the prepaid limit is not working at all in this case. This way
>> the user can hack the prepaid protection of the account. Otherwise the
>> call_control is fuilly functional.
>> Anybody experienced the similar problem? If so, how to resolve it?
>> Thanks,
>> Mino Haluz
>>
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>>
>> --
>> Daniel-Constantin Mierla -- http://www.asipto.com
>> http://linkedin.com/in/miconda -- http://twitter.com/miconda
>