I wish to send files via modem (COM2). I use Visual C++ 5.0 under NT4.0. I know to send chars to RS232. But I don't know how to comunnicate with the modem to compose a phone number to send a file to an other distant machine. How can I use the S registers of the modem, and the AT commnands on a US robotic SPORTSTER MESSAGE plus (33600 x2)
Where can I find TAPI (Telephony API)documentation?
Note: I wish only use C functions and not C++ functions, it isn't a real windows application.