JTAPI (Java Telephony Application Programming Interface) is a Java-based application programming interface (API) for computer telephony applications. JTAPI consists of a set of language packages. The core package provides the basic framework for simple telephony processes such as placing a call, answering a call, and dropping a call. Several extension packages provide additional telephony features. JTAPI is interoperable across various computer platforms. JTAPI is similar to Microsoft and Intel's Telephony Application Programming Interface (TAPI).
JTAPI was developed in 1996 by a working group of computer and telecommunications companies including Intel, Lucent, NortelNetworks, Novell, and Sun Microsystems.