[SR-Users] Ringing Timeout

[Alex Balashov]

Hi Edward,

You can achieve this by manipulating the fr_inv_timer (timer to final dispositive response for the transaction):

https://kamailio.org/docs/modules/5.5.x/modules/tm.html#tmp.p.fr_inv_timer

The secret ingredient is to reset it in an `onreply_route` only once you have received a 180/183 response:

https://kamailio.org/docs/modules/5.5.x/modules/tm.html#tm.f.t_set_fr

e.g.

--------
   onreply_route[MAIN_REPLY] {
      …

      if(t_check_status(“180|183”)) 
         t_set_fr(20000);
   }
--------

— Alex

> On Aug 7, 2021, at 10:31 AM, Edward Romanenco <edwardr at telemessage.com> wrote:
> 
> Hey all,
> 
> I'm trying to find the best way for settings a timeout for the 'ringing' stage of a call - meaning - I would like to wait for 20 seconds between receiving status 180 / 183 / early media from the remote end and 200, if I fail to receive the expected response in this timeframe - call should be dropped. Most of the documented timeouts I saw count between the first invite to any of the aforementioned stages - but I'm actually looking for the opposite.
> 
> Edward
> 
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-- 
Alex Balashov | Principal | Evariste Systems LLC

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