Media Control Channel Framework (CFW) Call Flow Examples
RFC 7058
Internet Engineering Task Force (IETF) A. Amirante
Request for Comments: 7058 University of Napoli
Category: Informational T. Castaldi
ISSN: 2070-1721 L. Miniero
Meetecho
S P. Romano
University of Napoli
November 2013
Media Control Channel Framework (CFW) Call Flow Examples
Abstract
This document provides a list of typical Media Control Channel
Framework call flows. It aims at being a simple guide to the use of
the interface between Application Servers and MEDIACTRL-based Media
Servers, as well as a base reference document for both implementors
and protocol researchers.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
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). Not all documents
approved by the IESG are 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/rfc7058.
Amirante, et al. Informational [Page 1]
RFC 7058 CFW Call Flow Examples November 2013
Copyright Notice
Copyright (c) 2013 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.
Amirante, et al. Informational [Page 2]
RFC 7058 CFW Call Flow Examples November 2013
Table of Contents
1. Introduction ....................................................4
2. Conventions .....................................................5
3. Terminology .....................................................5
4. A Practical Approach ............................................6
4.1. State Diagrams .............................................6
5. Control Channel Establishment ..................................10
5.1. COMEDIA Negotiation .......................................11
5.2. SYNC ......................................................14
5.3. K-ALIVE ...................................................15
5.4. Wrong Behavior ............................................17
6. Use-Case Scenarios and Examples ................................20
6.1. Echo Test .................................................27
6.1.1. Direct Echo Test ...................................28
6.1.2. Echo Test Based on Recording .......................30
6.2. Phone Call ................................................39
6.2.1. Direct Connection ..................................42
6.2.2. Conference-Based Approach ..........................44
6.2.3. Recording a Conversation ...........................51
6.3. Conferencing ..............................................57
6.3.1. Simple Bridging ....................................62
6.3.2. Rich Conference Scenario ...........................66
6.3.3. Coaching Scenario ..................................75
6.3.4. Sidebars ...........................................83
6.3.5. Floor Control ......................................93
6.4. Additional Scenarios ......................................99
6.4.1. Voice Mail ........................................100
6.4.2. Current Time ......................................107
6.4.3. DTMF-Driven Conference Manipulation ...............112
7. Media Resource Brokering ......................................126
7.1. Publishing Interface .....................................127
7.2. Consumer Interface .......................................136
7.2.1. Query Mode ........................................137
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