PDF of this tutorial
Definition
The changes in the forces that shape the communications industry have been well documented and are nearing the level of common knowledge; examples include regulation and technology. Digital subscriber line (DSL) is the technology that is employed between a customer location and the carrier’s network that enables more bandwidth to be provided by using as much of the existing network infrastructure as possible. Speeds of up to 9 Mbps to the home are possible, given a number of limitations (e.g., distance and line quality). Using a greater range of frequencies over the existing copper line makes this increase in bandwidth possible. Voice over DSL (VoDSL) represents a breakthrough service by means of this technology.
Overview
This tutorial will explore the topic of VoDSL, emphasizing transport methods and standards groups. First, however, it provides a short history and explanation of DSL technology.
