Interworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): One-to-One Text Chat Sessions
RFC 7573
| Document | Type |
RFC - Proposed Standard
(June 2015; No errata)
Was draft-ietf-stox-chat (stox WG)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-saintandre-sip-xmpp-chat | ||
| Stream | IETF | ||
| Formats | plain text pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Yana Stamcheva | ||
| Shepherd write-up | Show (last changed 2015-01-26) | ||
| IESG | IESG state | RFC 7573 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Alissa Cooper | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | No IANA Actions | ||
Internet Engineering Task Force (IETF) P. Saint-Andre
Request for Comments: 7573 &yet
Category: Standards Track S. Loreto
ISSN: 2070-1721 Ericsson
June 2015
Interworking between the Session Initiation Protocol (SIP) and the
Extensible Messaging and Presence Protocol (XMPP):
One-to-One Text Chat Sessions
Abstract
This document defines a bidirectional protocol mapping for the
exchange of instant messages in the context of a one-to-one chat
session between a user of the Session Initiation Protocol (SIP) and a
user of the Extensible Messaging and Presence Protocol (XMPP).
Specifically for SIP text chat, this document specifies a mapping to
the Message Session Relay Protocol (MSRP).
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7573.
Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Saint-Andre & Loreto Standards Track [Page 1]
RFC 7573 SIP-XMPP Interworking: Chat June 2015
Table of Contents
1. Introduction ....................................................2
2. Intended Audience ...............................................3
3. Terminology .....................................................4
4. XMPP to MSRP ....................................................4
5. MSRP to XMPP ....................................................9
6. Composing Events ...............................................13
6.1. Use of the Gone Chat State ................................14
7. Delivery Reports ...............................................15
8. Message Size ...................................................17
9. Internationalization Considerations ............................18
10. Security Considerations .......................................18
11. References ....................................................18
11.1. Normative References .....................................18
11.2. Informative References ...................................19
Acknowledgements ..................................................20
Authors' Addresses ................................................20
1. Introduction
Both the Session Initiation Protocol (SIP) [RFC3261] and the
Extensible Messaging and Presence Protocol (XMPP) [RFC6120] can be
used for the purpose of one-to-one text chat over the Internet. To
ensure interworking between these technologies, it is important to
define bidirectional protocol mappings.
The architectural assumptions underlying such protocol mappings are
provided in [RFC7247], including mapping of addresses and error
conditions. This document specifies mappings for one-to-one text
chat sessions (sometimes called "session-mode" messaging); in
particular, this document specifies mappings between XMPP messages of
type "chat" and the Message Session Relay Protocol (MSRP) [RFC4975],
which is commonly used in SIP-based systems for chat functionality
(although note that MSRP is not conjoined to SIP, and can be used by
non-SIP technologies). Mappings for single instant messages and
groupchat are provided in [RFC7572] and [GROUPCHAT].
The approach taken here is to directly map syntax and semantics from
one protocol to another. The mapping described herein depends on the
protocols defined in the following specifications:
o XMPP chat sessions using message stanzas of type "chat" are
specified in [RFC6121].
o MSRP chat sessions using the SIP INVITE and SEND request types are
specified in [RFC4975].
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