- Published in issue 5/1997 on page 20
digital communication lines
Some of the most likely causes for the increased demand for ISDN connections are the wider acceptance of fax machines for private use, the need to have several telephone lines available, and, of course, the widespread use of the Internet as a global medium. What is ISDN, what does the system offer, and for whom is it useful? In this article we examine the history and technical features of an ISDN connection.