[MSDN Library June 1998] TSPI Phone Device Messages (80.3030303030303%)

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

[MSDN Library June 1998] TSPI Line Device Messages (77.4184149184149%)

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

[MSDN Library June 1998] TSPI Phone Device Constants (64.033189033189%)

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

[MSDN Library June 1998] TSPI Line Device Constants (60.9348984348984%)

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

[MSDN Library June 1998] TSPI Phone Device Structures (59.8268398268398%)

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