Design and Implementation of DSL-Based Access Solutions

Chapter 1. History of Remote Access Technology

This chapter covers the following key topics:

• History of Remote Access Technology — A brief history of the remote access technology and its evolution from analog to digital.

• The World of Analog — Earlier applications that used analog modems were mainly text-based, but with the explosion of the Internet and its graphical applications, analog modem has put a tremendous burden on the Public Switched Telephone Network (PSTN).

• ISDN — ISDN was supposed to be the next big thing, replacing analog modems; however, because telcos failed to push the technology and invest more upfront for a long-term, rather than a short-term financial gain, the technology failed to take off.

• ADSL Comes of Age — A brief history ...