[Sip] I-D Action:draft-ietf-sip-subnot-etags-02.txt
Internet-Drafts@ietf.org Mon, 25 February 2008 20:08 UTC
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Subject: [Sip] I-D Action:draft-ietf-sip-subnot-etags-02.txt
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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 To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings. Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-sip-subnot-etags-02.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-sip-subnot-etags-02.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft.
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- [Sip] I-D Action:draft-ietf-sip-subnot-etags-02.t… Internet-Drafts
- [Sip] FW: I-D Action:draft-ietf-sip-subnot-etags-… DRAGE, Keith (Keith)