esday, December 23, 2008 9:24 AM
To: Iñaki Baz Castillo
Cc: sip-implementors@lists.cs.columbia.edu
Subject: Re: [Sip-implementors] CANCEL - 200 IINVITE crossover.
I don't understand why stateless forwarding has been mentioned in the context
of this question. AFAIK it has no relevance.
If we assum
I don't understand why stateless forwarding has been mentioned in the
context of this question. AFAIK it has no relevance.
If we assume that the pcscf in the question is a transaction stateful
proxy (and I'm pretty certain that any IMS implementation would be),
then when the 200 INVITE is recei
2008/12/22 Maxim Sobolev :
>> Alto consider the following draft:
>> http://tools.ietf.org/html/draft-sparks-sip-invfix-02
>>
>> It states that a transaction statefull proxy mustn't forward a 200
>> stateless, so in your case the 200 OK wouldn't arrive to the UAC (if
>> the proxy honors the above
Iñaki Baz Castillo wrote:
> 2008/12/22 karthik karthik :
>> step3.
>> meanwhile the callee has sent 200(invite) without 18x directly.
>> ue<--200(invite)--pcscf<--200(invite)--scscf<--200(invite)--
>> ue--ack-->pcscf--ack-->scscf--ack-->
>> ue sends an ack though it had already sent a cancel.
>>
>>
2008/12/22 karthik karthik :
> step3.
> meanwhile the callee has sent 200(invite) without 18x directly.
> ue<--200(invite)--pcscf<--200(invite)--scscf<--200(invite)--
> ue--ack-->pcscf--ack-->scscf--ack-->
> ue sends an ack though it had already sent a cancel.
>
> what is the expected bahaviour at
lls.
Regards,
Sumit Jindal
-Original Message-
From: sip-implementors-boun...@lists.cs.columbia.edu
[mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of karthik
karthik
Sent: Monday, December 22, 2008 1:17 PM
To: sip-implementors@lists.cs.columbia.edu
Subject: [Sip-imple
Hello All,
I request clarrification with this cancel - 200(invite) crossover.
pcscf in this scenraio acts like a proxy and not a b2bua.
step1
ue--invite-->pcscf--invite-->scscf--invite-->
scscf doenst send 100 trying to pcscf.
pcscf has sent 100 trying to ue.
step2
ue--cancel-->pcscf
ue<--200(can
