Browse Prior Art Database

Internet Media Type message/sipfrag (RFC3420)

IP.com Disclosure Number: IPCOM000010296D
Original Publication Date: 2002-Nov-01
Included in the Prior Art Database: 2002-Nov-19
Document File: 9 page(s) / 15K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Sparks: AUTHOR

Abstract

This document registers the message/sipfrag Multipurpose Internet Mail Extensions (MIME) media type. This type is similar to message/sip, but allows certain subsets of well formed Session Initiation Protocol (SIP) messages to be represented instead of requiring a complete SIP message. In addition to end-to-end security uses, message/sipfrag is used with the REFER method to convey information about the status of a referenced request.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 19% of the total text.

Network Working Group                                          R. Sparks

Request for Comments: 3420                                   dynamicsoft

Category: Standards Track                                  November 2002

                  Internet Media Type message/sipfrag

Status of this Memo

   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.

Copyright Notice

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

Abstract

   This document registers the message/sipfrag Multipurpose Internet

   Mail Extensions (MIME) media type.  This type is similar to

   message/sip, but allows certain subsets of well formed Session

   Initiation Protocol (SIP) messages to be represented instead of

   requiring a complete SIP message.  In addition to end-to-end security

   uses, message/sipfrag is used with the REFER method to convey

   information about the status of a referenced request.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2

   2.  Definition: message/sipfrag  . . . . . . . . . . . . . . . . .  2

   3.  Examples . . . . . . . . . . . . . . . . . . . . . . . . . . .  3

       3.1 Valid message/sipfrag parts  . . . . . . . . . . . . . . .  3

       3.2 Invalid message/sipfrag parts  . . . . . . . . . . . . . .  4

   4.  Discussion . . . . . . . . . . . . . . . . . . . . . . . . . .  5

   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  6

   6.  Security Considerations  . . . . . . . . . . . . . . . . . . .  6

       Normative References . . . . . . . . . . . . . . . . . . . . .  7

       Non-Normative References . . . . . . . . . . . . . . . . . . .  7

       Author's Address . . . . . . . . . . . . . . . . . . . . . . .  7

       Full Copyright Statement . . . . . . . . . . . . . . . . . . .  8

Sparks                      Standards Track                     [Page 1]

RFC 3420           Internet Media Type message/ipfrag      November 2002

1. Introduction

   The message/sip MIME media type defined in [1] carries an entire well

   formed SIP message.  Section 23.4 of [1] describes the use of

   message/sip in concert with S/MIME  to enhance end-to-end security.

   The concepts in that section can be extended to allow SIP entities to

   make assertions about a subset of a SIP message (for example, as

   described in [6]).  The message/sipfrag type defined in this document

   is used to represent this subset.

   A subset of a SIP message is also used by the R...