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CurrentBEST CURRENT PRACTICEIETF streamBCP119

RFC 4579: Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents

In plain English — editorial summary, not part of the RFC

This specification defines conferencing call control features for the Session Initiation Protocol (SIP). This document builds on the Conferencing Requirements and Framework documents to define how a tightly coupled SIP conference works. The approach is explored from the perspective of different user agent (UA) types: conference-unaware, conference-aware, and focus UAs. The use of Uniform Resource Identifiers (URIs) in conferencing, OPTIONS for capabilities discovery, and call control using REFER are covered in detail with example call flow diagrams. The usage of the isfocus feature tag is defined. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.

Document record

Document ID
RFC4579
Published
August 2006
Authors
A. Johnston; O. Levin
Status
BEST CURRENT PRACTICE
Stream
IETF
Area
rai
Pages
43
Also known as
BCP119

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/4579-session-initiation-protocol-sip-call-control-conferencing-for-user-agents