With Windows2000+ MS have provided a means of accessing TAPI via COM. Unfortunately they have not provided any kind of example that I can remotely understand. So far the following code works (inelegantly) for making calls:

PROCEDURE TapiCall
LPARAMETERS m.TelephoneDevice, m.CallPrefix, m.TelephoneNumber

oTapi = CREATEOBJECT("tapi.tapi")
oTapi.Initialize

FOR EACH oAddress IN oTapi.Addresses
   IF oAddress.AddressName() = m.TelephoneDevice AND oAddress.QueryMediaType(0x8)  && 0x8 = audio
      oCall = oAddress.CreateCall(m.CallPrefix + m.TelephoneNumber, 0x1, 0x8)
      oCall.Connect(.F.)
      EXIT
   ENDIF
ENDFOR

RELEASE oCall, oAddress, oTapi

I cannot find any way of obtaining the number of an incoming call. My primary source of information thus far has been:

http://msdn.microsoft.com/library/en-us/tapi/tapi2/code_snippets.asp

But the examples seem disjointed and over complicated.

Help, please?