RFC 3891 on The Session Initiation Protocol (SIP) "Replaces" Header

A new Request for Comments is now available in online RFC libraries.

        RFC 3891

        Title:      The Session Initiation Protocol (SIP)
                    "Replaces" Header
        Author(s):  R. Mahy, B. Biggs, R. Dean
        Status:     Standards Track
        Date:       September 2004
        Mailbox:    rohan@cisco.com, bbiggs@dumbterm.net, rfc@fdd.com
        Pages:      16
        Characters: 34180
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-sip-replaces-05.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3891.txt

This document defines a new header for use with Session Initiation
Protocol (SIP) multi-party applications and call control.  The
Replaces header is used to logically replace an existing SIP dialog
with a new SIP dialog.  This primitive can be used to enable a variety
of features, for example: "Attended Transfer" and "Call Pickup".  Note
that the definition of these example features is non-normative.

This document is a product of the Session Initiation Protocol Working
Group of the IETF.

This is now a Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
of this memo is unlimited.

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USC/Information Sciences Institute

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