Many thanks for the pointers.
-Original Message-
From: Paul Kyzivat [mailto:pkyzi...@cisco.com]
Sent: Monday, May 03, 2010 10:05 AM
To: Dushyant Godse
Cc: sip-implementors@lists.cs.columbia.edu
Subject: Re: [Sip-implementors] How to resolve 491 request pending cross
over on Re-INVITEs
Dushyant Godse wrote:
> Now UA2 receives re-invite w/ SDP on call leg #1 from UA1. UA1 extracts
> SDP from call leg #1 and sends a Re-INVITE to UA2 on call leg#2. At the
> same time UA1 sends a re-invite on call leg#2 to UA2. These are part of
> session refresh being triggered using re-invites
> Question is -
>
> When a re-invite and 491 pending cross over happens on a dialog (call
> dialog #2), how do both the UA resolve this. What retry timers are used
> to resolve this and is there a draft available that addresses this
> issue?
See rfc3261 section 14.1's 491 text.
HI
I am sure this has been asked many times but I could not find a
definitive thread on how to resolve this. Moreover RFC 3261 section 14.2
is vague about resolving race conditions for Re-INVITEs. You could
directly skip over to offending section (in red) below for the issue in
question.
Here
