[MSDN Library April 2000] Hookswitch Devices (70.429252782194%)
MSDN Library - April 2000 > Platform SDK > Networking and Directory Services > Telephony Application Programming Interfaces (TAPI, TSPI, MSPI) > TAPI Version 2.2 (For C Applications) > TAPI 2.2 Overview > Phone Devices Overview
[MSDN Library April 2000] Hookswitch Devices (43.5934704830054%)
MSDN Library - April 2000 > Platform SDK > Networking and Directory Services > Telephony Application Programming Interfaces (TAPI, TSPI, MSPI) > TAPI Service Providers > Telephony Service Providers (TSP) > Telephony Service Provider Interface (TSPI) > Phone Devices > Supplementary Phone Services