[OpenSER-Users] no-answer timeout

[Anatoly Pidruchny]

Iñaki Baz Castillo wrote:
> A UAC or proxy shouldn't generate a CANCEL if it hasn't receive a 100 Trying. 
> fr_timer is the time OpenSer will wait for a first provisional reply from UAS 
> (commonly the 100 Trying), so OpenSer shouldn't generate a CANCEL if fr_timer 
> expries.
>   

You are right about the CANCEL. But then the question is about the "408 
Request Timeout" reply to the caller. When fr_timer expires, 408 reply 
is sent to the caller no matter if noisy_ctimer is set or not. Is this 
the correct behavior or not? I thought that it is correct, but in one of 
your previous posts you wrote:

> if you don't set the noisy_timer then OpenSer won't send a CANCEL and 408.


> BTW, the other case (100 Trwying is received but fr_inv_timer expires) then 
> OpenSer should generate a CANCEL just if noisy_ctimer is enabled:
>
> 1.3.7. noisy_ctimer (integer)
>  If set, on FR timer INVITE transactions will be explicitly canceled if 
> possible, silently dropped otherwise. Preferably, it is turned off to allow 
> very long ringing. This behavior is overridden if a request is forked, or 
> some functionality explicitly turned it off for a transaction (like acc does 
> to avoid unaccounted transactions due to expired timer). 
>  Default value is 0 (false).
>
> Do you say that it generates CANCEL even if that parameter is off?
>   

My testing shows that it generates 408 even if noisy_ctimer is off. But 
I only tested fr_timer. Why are you even asking me this question. In one 
of the previous posts you wrote:

> Sorry, it's strange, I've tested now and OpenSer generates the CANCEL and 408 
> even if "noisy_ctimer" is 0. I can sure that time ago I tryed it and just 
> generated them if that parameter wa set to 1. ¿?¿


So, you tested fr_inv_timeout and OpenSER generated both 408 and CANCEL 
even if the noisy_ctimer parameter is off. If you confirm that CANCEL is 
sent even if noisy_ctimer is off then we need to open a bug report on 
the tracker. But I am not sure about the 408 reply to the caller. I 
really do not know if 408 reply is supposed to be always sent to the 
caller or only when noisy_ctimer parameter is set to 1.

Regards,
Anatoly.