[MSDN Library April 2000] Supplementary Telephony Services (50.4320205539718%)

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 Services (39.1537362830967%)

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 Reference (30.0929246424241%)

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

[MSDN Library April 2000] Supplementary Phone Service Functions (26.0143784337333%)

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 (24.3439580133129%)

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