Windows® CE 3.0 Application Programming

Introduction to Telephone API (TAPI)

The Telephone API (TAPI) provides control over making, maintaining, and terminating calls over a wide range of telephonic devices. With Windows CE, the most common telephonic devices are modems linked to an ordinary telephone line or a modem connected to a GSM or other mobile telephone device. By using TAPI you no longer have to work with the AT modem commands, or whatever else your telephone device supports—TAPI provides API functions to manage these functions and look after differences between various telephonic devices. TAPI is independent of the underlying telephone network and equipment.

Applications using TAPI features make calls into tapi.dll, and this in turn calls functions in the appropriate service ...