[Kamailio-Devel] drop() and tm timers.

[Klaus Darilion]

Strange!

Nevertheless there is no need to drop 100 as 100 is never relayed.

klaus

Aurelien Grimaud wrote:
> Daniel-Constantin Mierla a écrit :
>> Hello,
>>
>> On 12/18/08 13:18, Aurelien Grimaud wrote:
>>> Hi,
>>> In my openser, I had to not relay any provisional which is < 180.
>>> I used drop in reply route to do this.
>>> No provisional < 180 is sent to caller.
>>>
>>> Unfortunately, dropping 100 seems to make the transaction module not 
>>> disarming its fr_timer.
>>>   
>> 100 is disabling the retransmission timer. fr_timer is the duration to 
>> wait until a final response is received, not related to retransmission 
>> and 100 reply.
>>
> 
> - fr_timer is armed when INVITE is t_relayed and disarmed *only* when a 
> final response is received.
> - fr_inv_timer is armed whenever a provisional (100 - 199) is received, 
> disarmed on final response .
> Well, fr_timer also has to be disarmed when fr_inv_timer is armed right ?
> 
> So any provisional (100-199) disarm fr_timer and arm fr_inv_timer.
> But you have not to drop it in reply_route.
> 
> In my case, the reply_route I set drops any provisional < 180.
> This means that the 100 response will not make tm module switch fr_timer 
> to fr_inv_timer as it would be if not dropped.
> 
> Well this is not a problem, I only dropped provisional from 101 to 180, 
> and all went back to normal.
> Since 100 is not forwarded (because of t_relay already generated one), 
> this makes no difference for end users.
> 
> I did not expect drop() statement to change anything for timers.
> 
> Thanks.
> Aurelien
> 
>> Cheers,
>> Daniel
>>
>>> The 180 has been waited for more time than my fr_timer so request 
>>> failed and failure_route was called.
>>> In fact, there is no 180, only a 200 ok.
>>>
>>> Can anyone confirm that disarming timer is *not* done if 100 is 
>>> dropped ?
>>>
>>> This is openser 1.2.1
>>>
>>> Regards.
>>> Aurelien
>>>
>>>
>>>
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>>>   
> 
> 
> 
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