[MSDN Library June 1998] Phone Device (24.8611111111111%)

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

[MSDN Library June 1998] Phone Buttons (24.6831293706294%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Overviews > Phone Devices Overview

[MSDN Library June 1998] Phone SPI Initialization (21.1111111111111%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TSPI Version 2.1 > Overviews > Phone Devices > Basic Phone Services

[MSDN Library June 1998] Phone Jacks (21.0227272727273%)

MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT Server 4.0 Resource Kit > Windows NT Server Resource Kit - Supplement 1 > Chapter 4 - Using ISDN > Introduction to ISDN > ISDN Hardware

[MSDN Library June 1998] Phone Devices (20.7115384615385%)

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