[MSDN Library April 2000] Supplementary Phone Services (57.9625322997416%)

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

[MSDN Library April 2000] Supplementary Telephony Services (46.6116412381656%)

MSDN Library - April 2000 > Platform SDK > Networking and Directory Services > Telephony Application Programming Interfaces (TAPI, TSPI, MSPI) > The Microsoft Telephony Programming Model > TAPI Levels of Service

[MSDN Library April 2000] Supplementary Phone Service Functions (31.4575067678516%)

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 Reference > TAPI Quick Function Reference > Supplementary Telephony Services Reference

[MSDN Library April 2000] Supplementary Line Service Functions (29.2052545155993%)

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 Reference > TAPI Quick Function Reference > Supplementary Telephony Services Reference

[MSDN Library April 2000] Supplementary Telephony Services Reference (26.2022441160372%)

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 Reference > TAPI Quick Function Reference