Telephony Application Programming Interface. This cool piece of
   Windows 95 lets you use modems and other communication devices easier.
   Under TAPI, it's possible to change devices, for example, and not have
   to re-configure every piece of software to work with it. You can set
   up a single set of dialing rules, or multiple dialing rules based on
   your location, and the apps are smart enough to dial long distance as
   required. You can run a modem answering program, and quickly dial out
   or send a fax without having to shut down the answering program.
   
   I really like TAPI because of cool features like that. Microsoft
   extended TAPI to include SmartRing (TM) compatibility and voice
   capability in UNIMODEM V, available with the Win95 Service Pack. Super
   cool.