[MSDN Library June 1998] Telephony Services (25.6919191919192%)
MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TSPI Version 2.1 > Overviews
[MSDN Library June 1998] Telephony Application Programming Interface (25.2932476540188%)
MSDN Library Visual Studio 6.0 > Platform SDK > Windows Programming Guidelines > Windows CE Programmer's Guide > Introduction to Windows CE Programming > Overview of the Windows CE Operating System > Communications Interface
[MSDN Library June 1998] Telephony Overview (24.9974747474747%)
MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Overviews
[MSDN Library June 1998] Telephony Counters (24.6618513065881%)
MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT Workstation 4.0 Resource Kit > Chapter 10 - About Performance Monitor > What's New in Performance Monitor
[MSDN Library June 1998] Telephony API (22.0599293179938%)
MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Overviews > The Telephony Programming Model