[This is preliminary documentation and subject to change.]
TAPI 3.0 is an evolutionary API providing convergence of both traditional PSTN telephony and IP Telephony.
IP Telephony is an emerging set of technologies which enables voice, data, and video collaboration over existing LANs, WANs and the Internet.
TAPI 3.0 enables IP Telephony on the Microsoft® Windows® operating system platform by providing simple and generic methods for making connections between two or more machines, and accessing any media streams involved in the connection.
TAPI 3.0 supports standards based H.323 conferencing and IP multicast conferencing. It utilizes the Windows NT® 5.0 operating system's Active Directory service to simplify deployment within an organization, and includes quality of service (QoS) support to improve conference quality and network manageability.
Introduction to H.323 Communications in TAPI 3.0
IP Multicast Conferencing in TAPI 3.0
Enterprise Deployment of TAPI 3.0 IP Telephony Infrastructure