what is xDSL and what does it do for users?
xDSL is a generic term for different “flavors” of DSL, or digital subscriber line. It is in fact a solution to the “last mile problem.” It converts an otherwise analog local loop into a digital line, employing advanced modulation techniques that enhance the loop to provide greater throughput. The upstream and downstream speeds that can be attained depend on several factors: distance to be traveled, modulation techniques used and network design. If you’ll permit me to throw a couple of technical terms your way, xDSL delivers high-bandwidth data, packet video and voice transmission at fiber optic quality over copper, by using the available frequencies above the 4 kilohertz voice band. Advantages to Users All this is fine, but what does xDSL mean to users? First and foremost, the connection is “always on,” one of the holy grails for serious Internet users. No dialing, no network bottlenecks, no busy signals, no hassles. This means no call set-up, and no user name and password to enter. Ju