I want to use TAPI to make calls. I have successfully used tapiRequestMakeCall in the TAPI32.DLL to make calls, which seems to use dialer.exe. However, I would like more control over the call. I don't want the dialer window, I want to be able to hang up, I want to be able to detect when the called has picked up the phone. So, what "level" or TAPI library do I need? What's in TAPI32.DLL verses TAPI3.dll?
I want to use .NET code.