[MSDN Library June 1998] TAPI Version 2.0 (55.4878048780488%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Using the TAPI 2.1 Programmer's Reference > TAPI Versions

[MSDN Library June 1998] TAPI Version 2.1 (53.9253048780488%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Using the TAPI 2.1 Programmer's Reference > TAPI Versions

[MSDN Library June 1998] TAPI Version 1.4 (52.3628048780488%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Using the TAPI 2.1 Programmer's Reference > TAPI Versions

[MSDN Library June 1998] TAPI Version 1.5 (52.3628048780488%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Using the TAPI 2.1 Programmer's Reference > TAPI Versions

[MSDN Library June 1998] TAPI Version 1.3 (52.3628048780488%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Using the TAPI 2.1 Programmer's Reference > TAPI Versions