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Telephony server application programming interface (TSAPI) is a computer telephony integration standard that enables telephony and computer telephony integration (CTI) application programming.
The foundation of TSAPI is the European Computer Manufacturers Association’s (ECMA) standard CTI definition of computer-supported telecommunications applications (CSTA).
TSAPI is built with multiple Netware server control commands for call logging, call switching and voice mail. Although similar to the Microsoft/Intel telephony API (TAPI), TSAPI does not require call switching.
Novell and AT&T developed TSAPI to enable third-party control of CTI applications connected to local area networks (LANs). TSAPI is used by telephone system and LAN server data links for multiple phone and computer application controls.
TSAPI includes telephony services with the following hardware and software components: