Abbreviated TSAPI. A standard telephone interface developed by AT&T and Novell, designed to allow applications to set up and control calls. TSAPI is available as a NetWare Loadable Module for NetWare 4.01 and later.
TSAPI requires that the PBX (private branch exchange) be linked to a server and so has greater control over the call than does Telephony API.
See also Telephony API.