Session Initiation Protocol (SIP)-Specific Event Notification
RFC 3265
Document | Type |
RFC - Proposed Standard
(July 2002; Errata)
Obsoleted by RFC 6665
Obsoletes RFC 2543
Updates RFC 3261
Was draft-ietf-sip-events (sip WG)
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Author | Adam Roach | ||
Last updated | 2020-01-21 | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized with errata bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 3265 (Proposed Standard) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Allison Mankin | ||
IESG note |
RFCs 3261-3265 Responsible: Finished |
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Send notices to | <rohan@cisco.com> |
Network Working Group A. B. Roach Request for Comments: 3265 dynamicsoft Updates: 2543 June 2002 Category: Standards Track Session Initiation Protocol (SIP)-Specific Event Notification 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 describes an extension to the Session Initiation Protocol (SIP). The purpose of this extension is to provide an extensible framework by which SIP nodes can request notification from remote nodes indicating that certain events have occurred. Concrete uses of the mechanism described in this document may be standardized in the future. Note that the event notification mechanisms defined herein are NOT intended to be a general-purpose infrastructure for all classes of event subscription and notification. Table of Contents 1. Introduction........................................... 3 1.1. Overview of Operation.................................. 4 1.2. Documentation Conventions.............................. 4 2. Definitions............................................ 5 3. Node Behavior.......................................... 6 3.1. Description of SUBSCRIBE Behavior...................... 6 3.1.1. Subscription Duration.................................. 6 3.1.2. Identification of Subscribed Events and Event Classes.. 6 3.1.3. Additional SUBSCRIBE Header Values..................... 7 3.1.4. Subscriber SUBSCRIBE Behavior.......................... 7 3.1.5. Proxy SUBSCRIBE Behavior............................... 9 3.1.6. Notifier SUBSCRIBE Behavior............................ 10 Roach Standards Track [Page 1] RFC 3265 SIP-Specific Event Notification June 2002 3.2. Description of NOTIFY Behavior......................... 13 3.2.1. Identification of Reported Events, Event Classes, and Current State.......................................... 13 3.2.2. Notifier NOTIFY Behavior............................... 14 3.2.3. Proxy NOTIFY Behavior.................................. 15 3.2.4. Subscriber NOTIFY Behavior............................. 16 3.3. General................................................ 18 3.3.1. Detecting support for SUBSCRIBE and NOTIFY............. 18 3.3.2. CANCEL requests........................................ 18 3.3.3. Forking................................................ 18 3.3.4. Dialog creation and termination........................ 18 3.3.5. State Agents and Notifier Migration.................... 19 3.3.6. Polling Resource State................................. 20 3.3.7. Allow-Events header usage.............................. 21 3.3.8. PINT Compatibility..................................... 21 4. Event Packages......................................... 21 4.1. Appropriateness of Usage............................... 21 4.2. Event Template-packages................................ 22 4.3. Amount of State to be Conveyed......................... 22 4.3.1. Complete State Information............................. 23 4.3.2. State Deltas........................................... 23 4.4. Event Package Responsibilities......................... 24 4.4.1. Event Package Name..................................... 24 4.4.2. Event Package Parameters............................... 24 4.4.3. SUBSCRIBE Bodies....................................... 24 4.4.4. Subscription Duration.................................. 25 4.4.5. NOTIFY Bodies.......................................... 25 4.4.6. Notifier processing of SUBSCRIBE requests.............. 25 4.4.7. Notifier generation of NOTIFY requests................. 25 4.4.8. Subscriber processing of NOTIFY requests............... 26 4.4.9. Handling of forked requests............................ 26 4.4.10. Rate of notifications.................................. 26 4.4.11. State Agents........................................... 27 4.4.12. Examples............................................... 27 4.4.13. Use of URIs to Retrieve State.......................... 27 5. Security Considerations................................ 28 5.1. Access Control......................................... 28 5.2. Notifier Privacy Mechanism............................. 28Show full document text