An Architectural Framework for Media Server Control
RFC 5567
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RFC - Informational
(June 2009; No errata)
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Last updated |
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2015-10-14
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IETF
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plain text
pdf
html
bibtex
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WG state
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(None)
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Document shepherd |
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No shepherd assigned
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IESG state |
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RFC 5567 (Informational)
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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Robert Sparks
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(None)
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Network Working Group T. Melanchuk, Ed.
Request for Comments: 5567 Rain Willow Communications
Category: Informational June 2009
An Architectural Framework for Media Server Control
Status of This Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
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Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
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it for publication as an RFC or to translate it into languages other
than English.
Abstract
This document describes an architectural framework for Media Server
control. The primary focus will be to define logical entities that
exist within the context of Media Server control, and define the
appropriate naming conventions and interactions between them.
Melanchuk Informational [Page 1]
RFC 5567 Mediactrl Architecture June 2009
Table of Contents
1. Introduction ....................................................2
2. Terminology .....................................................3
3. Architecture Overview ...........................................4
4. SIP Usage .......................................................7
5. Media Control for IVR Services .................................10
5.1. Basic IVR Services ........................................11
5.2. IVR Services with Mid-Call Controls .......................11
5.3. Advanced IVR Services .....................................11
6. Media Control for Conferencing Services ........................12
6.1. Creating a New Conference .................................14
6.2. Adding a Participant to a Conference ......................14
6.3. Media Controls ............................................15
6.4. Floor Control .............................................16
7. Security Considerations ........................................21
8. Acknowledgments ................................................22
9. Contributors ...................................................22
10. Informative References ........................................23
1. Introduction
Application Servers host one or more instances of a communications
application. Media Servers provide real-time media processing
functions. This document presents the core architectural framework
to allow Application Servers to control Media Servers. An overview
of the architecture describing the core logical entities and their
interactions is presented in Section 3. The requirements for Media
Server control are defined in [RFC5167].
The Session Initiation Protocol (SIP) [RFC3261] is used as the
session establishment protocol within this architecture. Application
Servers use it both to terminate media streams on Media Servers and
to create and manage control channels for Media Server control
between themselves and Media Servers. The detailed model for Media
Server control together with a description of SIP usage is presented
in Section 4.
Several services are described using the framework defined in this
document. Use cases for Interactive Voice Response (IVR) services
are described in Section 5, and conferencing use cases are described
in Section 6.
Melanchuk Informational [Page 2]
RFC 5567 Mediactrl Architecture June 2009
2. Terminology
The following terms are defined for use in this document in the
context of Media Server control:
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