Session Initiation Protocol (SIP) INFO Method and Package Framework
RFC 6086
Document | Type |
RFC - Proposed Standard
(January 2011; Errata)
Obsoletes RFC 2976
|
|
---|---|---|---|
Authors | Christer Holmberg , Eric Burger , Hadriel Kaplan | ||
Last updated | 2015-10-14 | ||
Replaces | draft-ietf-sip-info-events | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6086 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Robert Sparks | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) C. Holmberg Request for Comments: 6086 Ericsson Obsoletes: 2976 E. Burger Category: Standards Track Georgetown University ISSN: 2070-1721 H. Kaplan Acme Packet January 2011 Session Initiation Protocol (SIP) INFO Method and Package Framework Abstract This document defines a method, INFO, for the Session Initiation Protocol (SIP), and an Info Package mechanism. This document obsoletes RFC 2976. For backward compatibility, this document also specifies a "legacy" mode of usage of the INFO method that is compatible with the usage previously defined in RFC 2976, referred to as "legacy INFO Usage" in this document. 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/rfc6086. Copyright Notice Copyright (c) 2011 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. Holmberg, et al. Standards Track [Page 1] RFC 6086 INFO Framework January 2011 Table of Contents 1. Introduction ....................................................3 1.1. Conventions Used in This Document ..........................4 2. Motivation ......................................................4 3. Applicability and Backward Compatibility ........................5 4. The INFO Method .................................................6 4.1. General ....................................................6 4.2. INFO Request ...............................................6 4.2.1. INFO Request Sender .................................6 4.2.2. INFO Request Receiver ...............................7 4.2.3. SIP Proxies .........................................8 4.3. INFO Message Body ..........................................8 4.3.1. INFO Request Message Body ...........................8 4.3.2. INFO Response Message Body ..........................9 4.4. Order of Delivery ..........................................9 5. Info Packages ...................................................9 5.1. General ....................................................9 5.2. User Agent Behavior .......................................10 5.2.1. General ............................................10 5.2.2. UA Procedures ......................................10 5.2.3. Recv-Info Header Field Rules .......................11 5.2.4. Info Package Fallback Rules ........................12 5.3. REGISTER Processing .......................................12 6. Formal INFO Method Definition ..................................13 6.1. INFO Method ...............................................13 7. INFO Header Fields .............................................15 7.1. General ...................................................15 7.2. Info-Package Header Field .................................15 7.3. Recv-Info Header Field ....................................16 8. Info Package Considerations ....................................16 8.1. General ...................................................16 8.2. Appropriateness of Info Package Usage .....................16 8.3. INFO Request Rate and Volume ..............................16 8.4. Alternative Mechanisms ....................................17 8.4.1. Alternative SIP Signaling Plane Mechanisms .........17 8.4.2. Media Plane Mechanisms .............................18 8.4.3. Non-SIP-Related Mechanisms .........................19Show full document text