[Users] INVITE Timeout

[Helge Waastad]

Hi,
here is som information on the call flow.

br hw

The 200 OK sent by OpenSER has:

SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.46.11.104;rport=5060;branch=z9hG4bKdcc27f82c2173e09
From: "Helge Waastad"
<sip:67512390 at smartnet.no;user=phone>;tag=8366b40e13c880ef
CSeq: 60458 CANCEL
Call-ID: d6737a80e1b2a8d4 at 10.46.11.104
To: "Frank Zappa" <sip:67512385 at smartnet.no>;tag=21622EEB
Content-Length: 0
User-Agent: kphone/4.2
Contact: "Frank Zappa" <sip:67512385 at 10.46.11.111;transport=udp>
Record-Route: <sip:195.18.134.147;ftag=8366b40e13c880ef;lr=on;nat=yes>



The INVITE from OpenSER:

INVITE sip:67512385 at 10.46.11.111;transport=udp SIP/2.0
Record-Route: <sip:195.18.134.147;ftag=8366b40e13c880ef;nat=yes;lr=on>
Via: SIP/2.0/UDP 195.18.134.147;branch=z9hG4bK9001.1b43fc77.0
Via: SIP/2.0/UDP 10.46.11.104;rport=5060;branch=z9hG4bKdcc27f82c2173e09
From: "Helge Waastad"
<sip:67512390 at smartnet.no;user=phone>;tag=8366b40e13c880ef
To: <sip:67512385 at smartnet.no;user=phone>
Contact: <sip:67512390 at 10.46.11.104;user=phone>
Supported: replaces, timer
Call-ID: d6737a80e1b2a8d4 at 10.46.11.104
CSeq: 60458 INVITE
User-Agent: Grandstream GXP2000 1.0.1.9
Max-Forwards: 69
Allow:
INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK
Content-Type: application/sdp
Content-Length: 259


The CANCEL from SER:

CANCEL sip:67512385 at 10.46.11.111;transport=udp SIP/2.0
Via: SIP/2.0/UDP 195.18.134.147;branch=z9hG4bK9001.1b43fc77.0
From: "Helge Waastad"
<sip:67512390 at smartnet.no;user=phone>;tag=8366b40e13c880ef
Call-ID: d6737a80e1b2a8d4 at 10.46.11.104
To: <sip:67512385 at smartnet.no;user=phone>
CSeq: 60458 CANCEL
Content-Length: 0



On Mon, 2005-10-03 at 09:53 +0200, Klaus Darilion wrote:
> Hi Helge. I never had this problem.
> 
> some comments inline
> 
> Helge Waastad wrote:
> > I just wonder if this is a script error or if it is something else:
> > I am loading an INVITE timeout using avpops and the OpenSER terminates
> > the call. The callflow is as follows:
> > 
> > A -------------OpenSER------------B
> > ---INVITE---->
> > <---100-------
> >                      ---INVITE--->
> >                      <---100------
> >                      <---180------
> > <---180-------
> > 
> > 	<Inv Timeout delay>
> > 
> > <---408-------  
> >                      ---CANCEL--->
> >                      <---487------
> >                      ---ACK------>
> >                      <---200 OK---
> > <----200 OK---
> Maybe openser can't match the 200 OK to the CANCEL and thus forwards it.
> 
> What is the CSeq Header of the 200 OK sent by openser? INVITE or CANCEL?
> 
> Klaus
> 
> 
> > ---ACK------->
> >                      ---CANCEL--->
> >                      <---481------
> >                      ---CANCEL--->
> >                      <---481------
> > Any comments?
> > I do not want anyone to fix my problem, just a direction :-)
> > 
> > 
> 
-- 
mvh/best regards
Helge Waastad
System Engineer
Smartnet
(+47)67830017