[Users] INVITE Timeout

Helge Waastad helge at smartnet.no
Mon Oct 3 14:07:49 CEST 2005


Hi,
I've got both xlite (linux-version), Grandstream Bt-102, GXP-2000 and
cisco 7960 (7.5)

The problem is for all phones, except when I call the Cisco 7960......

br
hw


On Mon, 2005-10-03 at 12:49 +0200, Klaus Darilion wrote:
> Thus, openser forwards the 200 ok (response to CANCEL) instead of 
> consuming it. Does this only happen with kphone as client?
> 
> regards
> klaus
> 
> Helge Waastad wrote:
> > 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




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