The table below compares the speed, applications, advantages, and drawbacks of the three DSL technologies. 768 kbps upstream and downstream. Higher downstream speeds for Internet access. Lower downstream speed bandwidth than ADSL may impact some applications, but is many times faster than other services. Crosstalk can occur when bundled with T1 lines.
More expensive equipment requires more silicon and memory.
Low upstream bandwidth limits usage for businesses that run symmetrical. Although not yet implemented, this technology will represent an excellent migration from ADSL since it provides maximum bi-directional bandwidth from a DSL circuit. DSL Solutions from ADC Kentrox All DSL technologies require a similar configuration of user and service provider equipment. At the user's home, office, or other location, DSL access requires a copper phone line that is connected to a DSL-compatible modem or router. The combination of DSL and ATM technology in the Cellworx product line enables carriers and network managers to concentrate and interwork a wide variety of services and protocols, while optimizing bandwidth across the carrier network.