[Kamailio-Users] fr_inv_timer increased to 120 secs

[Ovidiu Sas]

On Mon, Aug 11, 2008 at 4:47 PM, Iñaki Baz Castillo <ibc at aliax.net> wrote:
> El Lunes, 11 de Agosto de 2008, Kaeman Chris escribió:
>> Hello,
>>
>> What are the problems in production that can be encountered if the
>> fr_inv_timer is increased from 30-45 secs to 120 secs for a sip-sip call?
>> Anyone have found any issues?
>
> In fact, I recommend you to use a value greater then 100 seconds (at last).
> fr_inv_timer is the time OpenSer keeps the transaction until it receives a
> final response, but note A can call B and B rings for more than fr_inv_timer
> before send a 200 OK. What will occur then? OpenSer will receive the 200 OK
> and will drop it since transaction was already deleted.

AFAIK, the 200 OK is relayed in stateless mode, not dropped.


> So set always fr_inv_timer greater than 100 seconds. In fact, there is not any
> issue if you set a value os 300 seconds (usually 99% of calls are not ringing
> for more than 60 seconds).
>
> --
> Iñaki Baz Castillo
>
> _______________________________________________
> Users mailing list
> Users at lists.kamailio.org
> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>