[MSDN Library June 1998] Version Negotiation (40.6709558823529%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TSPI Version 2.1 > Overviews > Line Devices > Basic Line Services > Opening and Closing Line Devices

[MSDN Library June 1998] Version Negotiation (38.4103641456583%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 2.1 > Overviews > Line Devices Overview

[MSDN Library June 1998] Version Section (29.68798374613%)

MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Programmer's Guide > Chapter 2 Driver Installation > 2.3 INF Files > 2.3.1 INF File Format Reference

[MSDN Library June 1998] Version Compatibility (28.766193977591%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TSPI Version 2.1 > Overviews > Line Devices > Basic Line Services > Opening and Closing Line Devices

[MSDN Library June 1998] Version Section (27.2328398295891%)

MSDN Library Visual Studio 6.0 > DDK Documentation > Windows 95 Device Driver Kit > Programmer's Guide > Chapter 13: Device Information (INF) File Reference > Introduction