Monica,
I interpret the intention of step 8, section 10.3, as defining the following
logic
when building a REGISTER response...
for each current binding
Insert a Contact header/value indicating the binding
endfor
Since there are no current bindings, no Contact header is required.
Note that table 2, section 20, clearly permits a response to a REGISTER to
contain no Contacts since the Contact field is optional.
Regards,
Paul DS
Paul D.Smith
Network Protocols Group
Data Connection Ltd (DCL)
Tel: +44 20 8366 1177 Email: [EMAIL PROTECTED]
Fax: +44 20 8363 1039 Web: http://www.dataconnection.com
-----Original Message-----
From: Monica Chitre [mailto:[EMAIL PROTECTED]
Sent: 20 April 2004 23:52
To: SIP (E-mail)
Subject: RE: [Sip-implementors] response to REGISTER with contact=*
Hi Venkat,
Thanks for your response. The example shows no contact header.
The section I was referring to is 10.3 (Under Step 8 for what the
registrar does after receiving a REGISTER):
"The response MUST contain Contact header field values enumerating all
current bindings."
So, I was wondering should you return Contact header with null value or
"*" or omit it as the example (but that contradicts the statement
above).
Regards,
Monica.
> -----Original Message-----
> From: Goud, Venkat Ramana (Venkat) ** CTR ** [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 20, 2004 4:14 PM
> To: Monica Chitre; [EMAIL PROTECTED]
> Cc: Sasha Ruditsky
> Subject: RE: [Sip-implementors] response to REGISTER with contact=*
>
>
> It's correct.
> The response must contain Contact header field values
> enumerating all current bindings. In the example UA is
> unregistering all bindings, so there are no current bindings
> hence an empty contact header.
>
> -venkat
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:sip-implementors-> [EMAIL PROTECTED] Behalf Of
> Monica Chitre
> Sent:
> Tuesday, April 20, 2004 3:50 PM
> To: [EMAIL PROTECTED]
> Cc: Sasha Ruditsky
> Subject: [Sip-implementors] response to REGISTER with contact=*
>
>
> Hi All,
>
> RFC 3261 mentions that Contact header MUST be present in a
> response to a REGISTER message.
>
> But in looking at the un-REGISTER example in RFC 3665 (call
> flows), I see that when a REGISTER with contact=* and
> expires=0 is sent, then the response does not have a contact
> header. Is this correct? Should it have a contact header
> and if yes, what should it be set to, "*"?
>
> Regards,
> Monica.
>
> Monica Chitre
> RADVISION, Inc.
> 266 Harristown Road, Suite 201
> Glen Rock, NJ 07452
> Voice: 201-689-6365
> Fax: 201-689-6301
>
>
_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
