This is something that makes no sense to me. I have tried to use the built-in fax software that comes with Win2k, and recently I have also tried FaxSTF X on my mac, and neither will allow you to ...
So long as you have a built-in modem, you can use Windows Fax and Scan to send and receive faxes from your computer. Learn how to use this classic program along with alternative faxing methods.