ISO/IEC TR 22767:2005

Information technology — Telecommunications and information exchange between systems — Using CSTA for SIP phone user agents (uaCSTA)

Publication date:   Aug 26, 2005

General information

90.93 Standard confirmed   Jul 6, 2015

ISO/IEC

ISO/IEC JTC 1/SC 6 Telecommunications and information exchange between systems

Technical Report

35.100.30   Network layer

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Scope

ISO/IEC TR 22767:2005 describes how CSTA can be used to provide a subset of CSTA call control functionality, called first party call control, for Session Initiation Protocol (SIP) user agents. The term uaCSTA (for user agent CSTA) refers to transporting ECMA-323 (CSTA XML) messages over a SIP session.
SIP is a control (signalling) protocol for creating, modifying, and terminating sessions with one or more participants. These sessions include Internet telephone calls, multimedia distribution, and multimedia conferences.
CSTA standardizes a very powerful and flexible set of application services to observe and control voice and non-voice media calls as well as control and observe non-call related features.
uaCSTA leverages SIP mechanisms to provide a highly featured, robust, and extensible set of features to support applications in the Enterprise environment.
uaCSTA can be implemented by several different types of SIP user agents:
directly by a SIP user agent on a SIP phone,uaCSTA can also be implemented by a SIP B2BUA to augment 3PCC functionality, andby a proxy server that is front-ending a PBX.

Life cycle

NOW

PUBLISHED
ISO/IEC TR 22767:2005
90.93 Standard confirmed
Jul 6, 2015

Relations

Adopted from ECMA TR/87