The TAPI Call Object

The WTE uses TAPI 3.0 to communicate with the telephony service provider (TSP) installed on the computer. Typical TSPs include voice boards, voice modems, and the IP device integral to the Windows 2000 operating system. All TAPI functionality is exposed to a Web telephony application through the ITBasicCallControl object. An application retrieves a reference to the interface by using the ITBasicCallControl property of the ExOM object. For more information, see the TAPI version 3.0 documentation.