[Serusers] Failure route weirdness....

[Jan Janak]

Do you get a provisional reply from the called ua ? If not, or if SER
cannot match it, then perhaps fr_timer (not fr_inv_timer) hits and that
one has a different value ? This is just a guess. Try to experiment with
value of fr_timer.
  
   Jan.

On 01-12-2005 19:30, sip wrote:
> Okay... I'm a little stumped on what's going on here, so I'll start with a
> general explanation before I bother posting my (likely hard to read) ser.cfg. 
> 
> I'm having a weird issue when calling from X-Lite to a SNOM 320 phone (I
> haven't tried the SNOM 190 with a different firmware yet, but I don't see that
> it would make much difference). 
> 
> I have a failure route which handles voicemail and such, and I have the invite
> timer set to 27 seconds (roughly 4.5 standard US rings). Now, when I call from
> X-Lite to X-Lite, or from Leadtek 8051 to X-Lite, or from SNOM to X-lite, or
> from SNOM to SNOM, or from Leadtek to Leadtek, etc, etc... everything works
> EXACTLY as it's supposed to. I have log messages telling me when the failure
> route is being entered, and it hits it at right on 27 seconds. 
> 
> However, when I call TO the SNOM phone from any other device besides another
> SNOM phone, I never hit the failure route until a 408 timeout at 58 seconds.
> Now, I can't think of a reason for a UA to overwrite the invite timer on SER
> or even how such overall weirdness would occur, but it's 58 seconds every time
> like clockwork.. error 408. At that point, it enters the failure route and
> does its processing (forwarding the call to voicemail as far as SER is
> concerned but not as far as the UA is concerned... which just receives an
> error message). 
> 
> Any ideas? 
> 
> Also... when I dial SNOM to SNOM, the SIP method I get in the ACC is PRACK (no
> INVITE). Can someone fill me in on what a PRACK is? 
> 
> Is there something I should be looking at to figure out why calling one UA
> behaves differently than other UAs? 
> 
> N.
> 
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