Session Recording Protocol
draft-ietf-siprec-protocol-02

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Document Type Active Internet-Draft (siprec WG)
Last updated 2011-10-31 (latest revision 2011-10-26)
Replaces draft-portman-siprec-protocol
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SIPREC                                                   L. Portman, Ed.
Internet-Draft                                              NICE Systems
Intended status: Standards Track                             H. Lum, Ed.
Expires: May 3, 2012                             Genesys, Alcatel-Lucent
                                                             A. Johnston
                                                                   Avaya
                                                               A. Hutton
                                                      Siemens Enterprise
                                                          Communications
                                                        October 31, 2011

                       Session Recording Protocol
                     draft-ietf-siprec-protocol-02

Abstract

   This document specifies the use of the Session Initiation Protocol
   (SIP), the Session Description Protocol (SDP), and the Real Time
   Protocol (RTP) for delivering real-time media and metadata from a
   Communication Session (CS) to a recording device.  The Session
   Recording Protocol specifies the use of SIP, SDP, and RTP to
   establish a Recording Session (RS) from the Session Recording Client
   (SRC), which is on the path of the CS, to a Session Recording Server
   (SRS) at the recording device.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 3, 2012.

Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Portman, et al.            Expires May 3, 2012                  [Page 1]
Internet-Draft         Session Recording Protocol           October 2011

   This document is subject to BCP 78 and the IETF Trust's Legal
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   (http://trustee.ietf.org/license-info) in effect on the date of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Scope  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  Overview of operations . . . . . . . . . . . . . . . . . . . .  5
     4.1.  Delivering recorded media  . . . . . . . . . . . . . . . .  5
     4.2.  Delivering recording metadata  . . . . . . . . . . . . . .  7
   5.  Initiating a Recording Session . . . . . . . . . . . . . . . .  8
     5.1.  Procedures at the SRC  . . . . . . . . . . . . . . . . . .  8
     5.2.  Procedures at the SRS  . . . . . . . . . . . . . . . . . .  9
   6.  SDP Handling . . . . . . . . . . . . . . . . . . . . . . . . .  9
     6.1.  Procedures at the SRC  . . . . . . . . . . . . . . . . . . 10
       6.1.1.  Handling media stream updates  . . . . . . . . . . . . 11
     6.2.  Procedures at the SRS  . . . . . . . . . . . . . . . . . . 12
   7.  RTP Handling . . . . . . . . . . . . . . . . . . . . . . . . . 13
   8.  Metadata . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     8.1.  Procedures at the SRC  . . . . . . . . . . . . . . . . . . 13
     8.2.  Procedures at the SRS  . . . . . . . . . . . . . . . . . . 15
       8.2.1.  Formal Syntax  . . . . . . . . . . . . . . . . . . . . 17
   9.  Persistent Recording . . . . . . . . . . . . . . . . . . . . . 17
   10. Extensions for Recording-aware User Agents . . . . . . . . . . 17
     10.1. Procedures at the record-aware user agent  . . . . . . . . 17
       10.1.1. Recording preference . . . . . . . . . . . . . . . . . 18
     10.2. Procedures at the SRC  . . . . . . . . . . . . . . . . . . 19
       10.2.1. Recording indication . . . . . . . . . . . . . . . . . 19
       10.2.2. Recording preference . . . . . . . . . . . . . . . . . 20
   11. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 21
     11.1. Registration of Option Tags  . . . . . . . . . . . . . . . 21
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