TAPIEx.Net can be incorporated in to applications to make and answer voice or data calls, detect Caller ID on incoming calls, detect remote party DTMF key press tones, generate DTMF tones etc. TAPIEx is TAPI (Microsoft and Intel Telephony API) compliant. We have put together a simplistic overview of TAPI, it's connectivity models.
TAPIEx works through Microsoft's Telephony API (TAPI) to provide hardware-independence (the freedom to work with telephony devices from many manufacturers).
The only requirements for using TAPIEx are:
Windows OS, Windows 2000/XP/Vista or later.
A Development environment that supports Microsoft .Net
TAPI compliant telephony device and TSP (TAPI driver)