[MSDN Library June 1998] Unimodem Only Supports INTERACTIVEVOICE for Outbound Calls (58.2456140350877%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Win32 Software Development Kit

[MSDN Library June 1998] Unimodem V Adds Additional Support for Data/Fax/Voice Modems (19.0789473684211%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Windows 95.x Retail Product