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Reference ISO/IEC/TR 22767 ed1.0 withdrawn corrigendum
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Title Information technology -- Telecommunications and information exchange between systems -- Using CSTA for SIP phone user agents (uaCSTA)
Publication date 2005-08-26
Format, price
(Swiss francs)
and language
198.- 82 pages
198.- 604 Kb
 
Abstract 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, and
  • by a proxy server that is front-ending a PBX.
Technical Committee JTC 1/SC 6 - Telecommunications and information exchange between systems  RSS
ICS Codes
35.100.30 Network layer
 
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Work in progress
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