[Sipping] New version: draft-ietf-sipping-gruu-reg-event-09

[Paul Kyzivat <[e-mail]>]

I submitted another revision of gruu-reg-event, which is now available 
on the server.

This aligns it with draft-ietf-sip-gruu-14, notably around the 
management of temporary GRUU lifetimes.

The syntax of both <temp-gruu> and <perm-gruu> has changed from -08. Now 
the gruu is passed as a attribute, as the AOR is in the <registration> 
element. <temp-gruu> now has another attribute specifying the cseq value 
for the oldest currently valid temp gruu.

There is also a new section explaining how this information is used by 
the UA to ensure it is only using valid temp gruus.

Happy reading.

	Thanks,
	Paul

-------- Original Message --------
Subject: [Sipping] I-D ACTION:draft-ietf-sipping-gruu-reg-event-09.txt
Date: Mon, 09 Jul 2007 16:15:02 -0400
From: [e-mail]
To: [e-mail]
CC: [e-mail]

A New Internet-Draft is available from the on-line Internet-Drafts
directories.
This draft is a work item of the Session Initiation Proposal 
Investigation Working Group of the IETF.

	Title		: Registration Event Package Extension for Session Initiation 
Protocol (SIP) Globally Routable User Agent URIs (GRUUs)
	Author(s)	: P. Kyzivat
	Filename	: draft-ietf-sipping-gruu-reg-event-09.txt
	Pages		: 16
	Date		: 2007-7-9
	
RFC 3680 defines a Session Initiation Protocol (SIP)[5] event package
    for registration state.  This package allows a watcher to learn about
    information stored by a SIP registrar, including its registered
    contact.

    However, the registered contact is frequently unreachable and thus
    not useful for watchers.  The Globally Routable User Agent URI

    (GRUU), defined in RFC YYYY [3], is a URI that is capable of reaching
    a particular contact.  However this URI is not included in the
    document format defined in RFC 3680.  This specification defines an
    extension to the registration event package to include GRUUs assigned
    by the registrar.

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