Hi,
The 200 OK response & any number of reliable provisional
responses (RPRs) that belong to a particular dialog
(identified by these particular From and To header tags)
cannot have different Record-Route headers.
If at all you get a different record-route header set,
the response would also have a different tag in the To
header, thereby, creating another dialog.
The UAC needs to keep track of all route-sets for each
new dialog that results for the initial INVITE and for
refresh requests for the existing sessions.
Regards,
Siddharth.
---------------
Siddharth Toshniwal @ Hughes Software Systems,
Bangalore, India.
"Medhavi Bhatia" <[EMAIL PROTECTED]> on 07/25/2002 06:08:13 PM
To: "Aditya" <[EMAIL PROTECTED]>, "Baniel Uri-CUB001"
<[EMAIL PROTECTED]>, [EMAIL PROTECTED]
cc: (bcc: Siddharth J Toshniwal/HSSBLR)
Subject: Re: [Sip-implementors] record-route in 183?
Any headers in provisional responses are valid only for early dialogs,
so the 200 ok headers should replace.
However, I dont see how they would be different. The spec does seem
to be fuzzy in this respect.
----- Original Message -----
From: "Aditya" <[EMAIL PROTECTED]>
To: "Medhavi Bhatia" <[EMAIL PROTECTED]>; "Baniel Uri-CUB001"
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Thursday, July 25, 2002 12:48 AM
Subject: Re: [Sip-implementors] record-route in 183?
>
> Will the UAC override the route Set made with 183
> (provisionals) Record Routes with one from 200 OK?
>
> If multiple provisionals come will a new route set be
> made for each provisional at UAC ?
>
> -AD
>
> --- Medhavi Bhatia <[EMAIL PROTECTED]> wrote:
> > If the INVITE had the record route, the 183 MUST
> > have it.
> > Consider a scenario, where the 183 reaches the UAC,
> > and
> > it had a contact in it. If the UAC now wants to send
> > a BYE,
> > and there was no record-route in the 183, the BYE
> > may
> > bypass any proxies originally intended to be in the
> > call path.
> >
> > ----- Original Message -----
> > From: "Baniel Uri-CUB001" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, July 24, 2002 7:48 PM
> > Subject: [Sip-implementors] record-route in 183?
> >
> >
> > > Is record-route returned in 183? (or only in the
> > final response that
> > follows
> > > such as 200)?
> > >
> > >
> >
> =======================================================================
> > > Uri Baniel - Distinguished Member of Technical
> > Staff - Motorola
> > > Tel: (847) 632 4616; Fax: (847) 632 3963;
> > > "Learning that does not daily increase will daily
> > decrease. - EWC
> > >
> >
> =======================================================================
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