This document provides an overview of DSL technology. It introduces different types of DSL including ADSL, VDSL, SDSL, and others. ADSL is described as the most common type for homes and small businesses, providing downstream speeds up to 1.5-1.59 Mbps and upstream up to 1.5 Mbps within an 18,000 foot range. DSL utilizes existing phone lines but offers higher speeds through digital technology. Advantages include always-on broadband access, faster speeds than dial-up, and fixed monthly billing. References for DSL standards are also provided.