[Kamailio-Users] Retransmitted SUBSCRIBEs

[Klaus Darilion]

Try xlog() after t_newtran. In case of the retransmission, you should 
not see the xlog as it should be absorbed silently by t_newtran.

regards
klaus

catalina oancea schrieb:
> Hi
> 
> Thanks for answering. I tried with t_newtran. It still doesn't work.
> The error is:
> 
> ERROR:presence:get_stored_info: wrong sequence number;received: 2 - stored: 2
> 
> Thanks
> Catalina
> 
> 
> 2009/10/9 Klaus Darilion <klaus.mailinglists at pernau.at>:
>>
>> catalina oancea schrieb:
>>> Hello,
>>>
>>> If a phone re-sends a presence SUBSCRIBE requests even after 5 or 500
>>> milliseconds, kamailio replied with '400 Bad request' to the second
>>> SUBSCRIBE
>>>
>>> The scenario is:
>>>
>>> Phone                           Kamailio
>>>   SUBSCRIBE    ---------->
>>>         401    <----------
>>>   SUBSCRIBE    ---------->
>>>         202    <----------
>>>       Pause    [      5ms]              (or 500 ms, the same thing
>>> happens)
>>>   SUBSCRIBE    ---------->         (previous SUBSCRIBE retransmitted)
>>> 400 Bad request <----------
>>>
>>> Is this the expected behavior? Is there any way to get kamailio to
>>> recognize the retransmission?
>>> This causes problems with Snom phones because they receive 400 reply
>>> when they retransmit the SUBSCRIBE, and presence stops working.
>> First, it would be a good idea to handle the SUBSCRIBE stateful, I think his
>> can be done by calling t_newtran() before, and t_release() after
>> handle_subscribe().
>>
>> regards
>> klaus
>>