TAPIShort for Telephony Application Programming Interface, an API for connecting a PC running Windows to telephone services. TAPI was introduced in 1993 as the result of joint development by Microsoft and Intel. The standard supports connections by individual computers as well as LAN connections serving many computers. Within each connection type, TAPI defines standards for simple call control and for manipulating call content.
The Telephony Server Application Programming Interface (TSAPI) defines similar capabilities for NetWare servers.