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ISO/IEC TR 22767:2005

Information technology — Telecommunications and information exchange between systems — Using CSTA for SIP phone user agents (uaCSTA)
26. 8. 2005.

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90.93     6. 7. 2015.



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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.

Životni ciklus


ISO/IEC TR 22767:2005
90.93 Odluka o potvrđivanju standarda
6. 7. 2015.

Povezani projekti

Identičan sa ECMA TR/87