Are you able to fax if you have "cable" high speed internet?

Answer 1

As long as your fax is connected to your phone line you will be able to fax out. Just follow the on-screen instructions.

Answer 2

I'm not exactly sure what you mean. A fax is through your phone line. If you have a phone line, then connect a fax machine to it and you can fax. If you do not have a phone line then you may want to look in to some e-mail fax services like http://www.myfax.com

Answer 3

Yes, if you subscribe to an internet based fax service. Otherwise you'll need a faxmodem and phone line to send and receive faxes.