[MSDN Library June 1998] TSPI Messages (44.1919191919192%)

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

[MSDN Library June 1998] TSPI Constants (44.1919191919192%)

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

[MSDN Library June 1998] TSPI Device Classes (44.0039492671072%)

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

[MSDN Library June 1998] TSPI Structures (43.4776334776335%)

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

[MSDN Library June 1998] TSPI Functions (42.4062049062049%)

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