DSL Transmission Services
DSL technology introduces a new family of transmission services that can provide high-speed data service over the existing copper infrastructure.
DSL is a transmission technology that uses existing twisted-pair telephone lines to transport high-bandwidth data to service subscribers. DSL, although considered an end-to-end solution, really occurs only in the local loop between the CPE and the central office's DSL device. Like analog modems, cable modems, wireless, and T1 lines, DSL by itself is a transmission technology, not a complete end-to-end solution. End users don't buy DSL. They buy services such as high-speed Internet access, an intranet, a leased line, voice over DSL, a virtual private network (VPN), and video ...
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