[MSDN Library June 1998] tapi/phone (79.5795795795796%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > TAPI Reference > TAPI Device Classes

[MSDN Library June 1998] tapi/phone (76.1992255413308%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TSPI Version 2.1 > TSPI Reference > TSPI Device Classes

[MSDN Library June 1998] tapi/line (72.0795795795796%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > TAPI Reference > TAPI Device Classes

[MSDN Library June 1998] tapi/line (68.6992255413308%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TSPI Version 2.1 > TSPI Reference > TSPI Device Classes

[MSDN Library June 1998] tapi/terminal (66.1180411180411%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > TAPI Reference > TAPI Device Classes