[Sip] FW: I-D Action:draft-ietf-sip-subnot-etags-02.txt

["DRAGE, Keith \(Keith\)" <[e-mail]>]

(As SIP WG cochair)

This should represent the completion of the WG last call comments from
some time back...

Can you please check that if you made comments during WGLC, those
comments have been addressed to your satisfaction.

This is also the opportunity for all of you to do your last scan through
this document and address any comments as I work through the publication
request.

Regards

Keith


-----Original Message-----
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Sent: Monday, February 25, 2008 7:45 PM
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Subject: [Sip] I-D Action:draft-ietf-sip-subnot-etags-02.txt

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


	Title           : An Extension to Session Initiation Protocol
(SIP) Events for Conditional Event Notification
	Author(s)       : A. Niemi
	Filename        : draft-ietf-sip-subnot-etags-02.txt
	Pages           : 24
	Date            : 2008-02-25

The Session Initiation Protocol (SIP) events framework enables receiving
asynchronous notification of various events from other SIP user agents.
This framework defines the procedures for creating, refreshing and
terminating subscriptions, as well as fetching and periodic polling of
resource state.  These procedures have a serious deficiency in that they
provide no tools to avoid replaying event notifications that have
already been received by a user agent.  This memo defines an extension
to SIP events that allows the subscriber to condition the subscription
request to whether the state has changed since the previous notification
was received.  When such a condition is true, either the body of a
resulting event notification or the entire notification message is
suppressed.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-sip-subnot-etags-02.txt

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