DNV 269

This Standard specifies the Services and Event Reports forComputer-Supported Telecommunications Applications, Phase III(CSTA).

This Standard is focused on providing application serviceinterfaces to a Switching Function, Computing Function and aSpecial Resource Function. A CSTA application interface isdisassociated from the various user-network interfaces andnetwork-network interfaces CSTA applications may serve, observe ormanipulate. Because CSTA operates with existing telecommunicationsinterfaces indirectly, it operates generically, so that differencesamong various existing interfaces are hidden from CSTAapplications. Support of user-to-network interfaces is outside thescope of CSTA.

Although most terminal equipment (TE) are suitable for use withCSTA there will be instances of TE that will not be suitable incertain circumstances. Examples are:

FAX terminals and modems that are unable to adjust theirtransmission modes to prevent carrier conflict when both partiesare alerted via CSTA during call establishment;

Functional terminals that perform telecommunication functionsoutside the control of the Switching Function.

Services defined in this Standard allow functional integrationbetween a computing network and a telecommunications network.Computing platforms (i.e., Application Programming Interfaces -APIs) that support such functionally-integrated applications areoutside the scope of this Standard.

Communication between the computing and switching (i.e.,telecommunications) networks may take place via interveningnetworks ranging from simple point-to-point connections to local-or wide-area telecommunications networks.

This Standard is part of a suite of CSTA Standards and TechnicalReports that provide a comprehensive description of thearchitectural and practical issues involved in applying,implementing, and utilizing CSTA-based CTI applications.

Edition:

9

Published:

12/01/2011

Number of Pages:

834