Session Recording Protocol
RFC 7866
Internet Engineering Task Force (IETF) L. Portman
Request for Comments: 7866 NICE Systems
Category: Standards Track H. Lum, Ed.
ISSN: 2070-1721 Genesys
C. Eckel
Cisco
A. Johnston
Illinois Institute of Technology
A. Hutton
Unify
May 2016
Session Recording Protocol
Abstract
This document specifies the use of the Session Initiation Protocol
(SIP), the Session Description Protocol (SDP), and the Real-time
Transport 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) between the Session Recording
Client (SRC), which is on the path of the CS, and a Session Recording
Server (SRS) at the recording device. This document considers only
active recording, where the SRC purposefully streams media to an SRS
and all participating user agents (UAs) are notified of the
recording. Passive recording, where a recording device detects media
directly from the network (e.g., using port-mirroring techniques), is
outside the scope of this document. In addition, lawful intercept is
outside the scope of this document.
Status of This Memo
This is an Internet Standards Track document.
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). Further information on
Internet Standards is available in Section 2 of RFC 7841.
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/rfc7866.
Portman, et al. Standards Track [Page 1]
RFC 7866 Session Recording Protocol May 2016
Copyright Notice
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document authors. All rights reserved.
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described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................4
2. Terminology .....................................................4
3. Definitions .....................................................4
4. Scope ...........................................................4
5. Overview of Operations ..........................................5
5.1. Delivering Recorded Media ..................................5
5.2. Delivering Recording Metadata ..............................8
5.3. Receiving Recording Indications and Providing Recording
Preferences ................................................9
6. SIP Handling ...................................................11
6.1. Procedures at the SRC .....................................11
6.1.1. Initiating a Recording Session .....................11
6.1.2. SIP Extensions for Recording Indications
and Preferences ....................................12
6.2. Procedures at the SRS .....................................12
6.3. Procedures for Recording-Aware User Agents ................12
7. SDP Handling ...................................................13
7.1. Procedures at the SRC .....................................13
7.1.1. SDP Handling in the RS .............................13
7.1.1.1. Handling Media Stream Updates .............14
7.1.2. Recording Indication in the CS .....................15
7.1.3. Recording Preference in the CS .....................16
7.2. Procedures at the SRS .....................................16
7.3. Procedures for Recording-Aware User Agents ................18
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