As with cable modems, a DSL modem connects to an ethernet port and provides continuous internet access. Users rent or buy the DSL modem from the service provider who will only support their modem model. Be sure to find out what the system requirements are before you sign up for DSL service. Since DSL is normally offered through the phone companies there won't be too many companies to choose from, assuming you fall within DSL range. Sometimes you are charged extra if your long distance company is different than the phone company offering internet access.
Many people use their computer with an analogue modem as a fax machine.
You can still send faxes with your computer on DSL but clearly not with a cable modem. If you have a home network it is possible to share dial-up, DSL and cable internet services, but you will need internet sharing software which you'll have to configure yourself. Sympatico-Lycos Inc. All Rights Reserved Sympatico is a trademark of Bell Canada, used under license.