scope:

This Standard specifies an XML protocol for the services described in ECMA-269, Services for Computer Supported Telecommunications Applications (CSTA) Phase III.

This Standard provides an alternative protocol to the ASN.1 based protocol specified in ECMA-285.

Clause 5 to Clause 8 inclusive describes the concepts underlying the request/response model, application association, notation and service, and a description of the template used in this Standard.

Clause 9 to Clause 27 inclusive contains CSTA-specific protocol details and forms the main part of this Standard.

Annex A specifies the PICS for this Standard.

Examples of CSTA XML encodings are provided in Annex E through Annex J.