[MSDN Library June 1998] TAPI 3.0 and NetMeeting 2.0 (31.5319865319865%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > Appendix > IP Telephony with TAPI 3.0

[MSDN Library June 1998] TAPI Unicode Support (25.1948051948052%)

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

[MSDN Library June 1998] TAPI Error Values (24.6400338791643%)

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

[MSDN Library June 1998] TAPI Client Management Reference (24.4034090909091%)

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

[MSDN Library June 1998] TAPI Reference (24.275974025974%)

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