Media Control Channel Framework (CFW) Call Flow Examples
RFC 7058

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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.

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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