[Serusers] Failure route weirdness....

sip sip at arcdiv.com
Sat Dec 3 15:50:00 CET 2005


I get a 180 (ringing) reply from the UA. Well... I get many of them, actually. 

I've fiddled around with the fr_timer values, and can't change the behaviour.
Anything in particular I should be looking for in the UA logs? All I get on
the SNOM UA is a standard 180 reply...

Sent to udp:63.XX.XXX.XX:5060 at 3/12/2005 09:35:28:730 (639 bytes):

SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 63.95.254.3;branch=z9hG4bKeb5e.ba94aa26.0
Via: SIP/2.0/UDP
6X.1XX.XX.XXX:5060;rport=5060;branch=z9hG4bK3DF32D98B7E849A29558C3FBC0EA29C3
Record-Route: <sip:63.XX.XXX.XX;ftag=1165695902;lr=on>
From: "X-Lite" <sip:11019 at sip.ourservice.com>;tag=1165695902
To: <sip:11014 at sip.ourservice.com>;tag=rg0mrmlq7j
Call-ID: B06428D0-B4E6-4EDF-A20D-938B1E65EBB7 at 192.168.6.75
CSeq: 31898 INVITE
Contact: <sip:11014 at 192.168.6.70:2051;line=ek61k6wr>
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK,
MESSAGE, INFO
Allow-Events: talk, hold, refer
Content-Length: 0


Eventually, it times out. 

N.


On Fri, 2 Dec 2005 01:51:31 +0100, Jan Janak wrote
> 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.
> > 
> > _______________________________________________
> > Serusers mailing list
> > serusers at lists.iptel.org
> > http://lists.iptel.org/mailman/listinfo/serusers




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