Voice capabilities are just one piece of the telecommunications puzzle. The transmission of data, whether it be faxes, computer files or e-mail, is becoming more and more important to successful businesses.
ISDN cabling is now standardized and reaching residential areas, giving homebased users the kind of data speed transmission larger companies already utilize. ISDN not only facilitates high-speed transmission of data--according to Southwestern Bell, an ISDN line can transmit a 240-page novel in about 90 seconds--it also allows homebased businesses to add multiple phone lines. One ISDN line can support three functions--standard phone service, fax transmission and Internet access--at once. If you're just beginning to expand your phone service, consider having an ISDN line installed.