[MSDN Library June 1998] tapiRequestDrop (94.4444444444444%)

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

[MSDN Library June 1998] tapiRequestDrop (40.6071428571429%)

MSDN Library Visual Studio 6.0 > Specifications > Platforms > Telephony Application Programming Interface (TAPI) > Chapter 2 > Simple Telephony