Adapter worked but nothing else. I couldn't use Winfax, or even Quicken. Later I put my Logitech mouse in my 2nd Serial port. This was pretty difficult because it was the long 25 pin and of course the mouse was only 9 pin. My Modem does not respond to anything.
First thing is try and see if the cables are in the right place.
I had so many problems fixed just because I put the line going into the wall in the place where it says phone. If this is correct, then check where your modem COM port is and open up Windows Terminal. Once you load up the HyperTerminal just cancel creating a new network connection and you should get a screen with a cursor. ATZ is a reset. If your modem is properly connected and the modem detects a dialtone you should hear your modem dial a number 1.