[Sip] RFC 4320 on Actions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE Transaction

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

        RFC 4320

        Title:      Actions Addressing Identified Issues with the
                    Session Initiation Protocol's (SIP) Non-INVITE
                    Transaction
        Author(s):  R. Sparks
        Status:     Standards Track
        Date:       January 2006
        Mailbox:    rjsparks@estacado.net
        Pages:      7
        Characters: 13853
        Updates:    3261

        I-D Tag:    draft-sparks-sip-nit-actions-03.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc4320.txt

This document describes modifications to the Session Initiation
Protocol (SIP) to address problems that have been identified with the
SIP non-INVITE transaction.  These modifications reduce the
probability of messages losing the race condition inherent in the
non-INVITE transaction and reduce useless network traffic.  They also
improve the robustness of SIP networks when elements stop responding.
These changes update behavior defined in RFC 3261.

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
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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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