Diversion Indication in SIP
RFC 5806
|
| Document |
Type |
|
RFC - Historic
(March 2010; Errata)
|
|
Last updated |
|
2015-10-14
|
|
Stream |
|
ISE
|
|
Formats |
|
plain text
pdf
html
bibtex
|
| Stream |
ISE state
|
|
(None)
|
|
Consensus Boilerplate |
|
Unknown
|
|
Document shepherd |
|
No shepherd assigned
|
| IESG |
IESG state |
|
RFC 5806 (Historic)
|
|
Telechat date |
|
|
|
Responsible AD |
|
Robert Sparks
|
|
Send notices to |
|
bbyerly@us.ibm.com, slevy@geom.umn.edu, rfc-editor@rfc-editor.org, jyang@synoptics.com
|
Independent Submission S. Levy
Request for Comments: 5806 Cisco Systems
Category: Historic M. Mohali, Ed.
ISSN: 2070-1721 Orange Labs
March 2010
Diversion Indication in SIP
Abstract
This RFC, which contains the text of an Internet Draft that was
submitted originally to the SIP Working Group, is being published now
for the historical record and to provide a reference for later
Informational RFCs. The original Abstract follows.
This document proposes an extension to the Session Initiation
Protocol (SIP). This extension provides the ability for the called
SIP user agent to identify from whom the call was diverted and why
the call was diverted. The extension defines a general header,
Diversion, which conveys the diversion information from other SIP
user agents and proxies to the called user agent.
This extension allows enhanced support for various features,
including Unified Messaging, Third-Party Voicemail, and Automatic
Call Distribution (ACD). SIP user agents and SIP proxies that
receive diversion information may use this as supplemental
information for feature invocation decisions.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for the historical record.
This document defines a Historic Document for the Internet community.
This is a contribution to the RFC Series, independently of any other
RFC stream. The RFC Editor has chosen to publish this document at
its discretion and makes no statement about its value for
implementation or deployment. Documents approved for publication by
the RFC Editor are not a candidate for any level of Internet
Standard; see 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/rfc5806.
Levy & Mohali Historic [Page 1]
RFC 5806 Diversion Indication in SIP March 2010
IESG Note
This document contains an early proposal to the IETF SIP Working
Group that was not chosen for standardization. Discussions on the
topic resulted in the informational RFC 3325, "Private Extensions to
the Session Initiation Protocol (SIP) for Asserted Identity within
Trusted Networks", and the standard solution that was chosen can be
found in RFC 4244, "An Extension to the Session Initiation Protocol
(SIP) for Request History Information".
Copyright Notice
Copyright (c) 2010 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.
Levy & Mohali Historic [Page 2]
RFC 5806 Diversion Indication in SIP March 2010
Table of Contents
1. Introduction ....................................................4
2. Terminology .....................................................4
2.1. Requirements Language ......................................4
2.2. Definitions ................................................4
2.3. Abbreviations ..............................................5
3. Overview ........................................................5
3.1. When Is the Diversion Header Used? .........................6
4. Extension Syntax ................................................6
5. Detailed Semantics ..............................................7
5.1. UAS Behavior ...............................................7
5.2. UAC Behavior ...............................................7
5.3. Redirect Server Behavior ...................................7
5.4. Proxy Server Behavior ......................................7
6. Examples Using Diversion Header .................................8
6.1. Call Forward Unconditional .................................8
6.2. Call Forward on Busy ......................................13
6.3. Call Forward on No-Answer .................................17
6.4. Call Forward on Unavailable ...............................21
6.5. Multiple Diversions .......................................24
Show full document text