1) Broadband choice for some cos 2) Symmetric dsl, contrast adsl 
(In topic `Network Architectures`) SDSL (symmetric DSL) is one of the major types of digital subscriber lines, a new technology allowing more data to be sent over existing copper lines. SDSL is being developed primarily in Europe (see xDSL & ADSL).
(See DSL)
Symmetric DSL, contrast ADSL.
Symmetric Digital Subscriber Line - A version of DSL where the upload speeds and download speeds are the same.
A version of DSL where the upload speeds and download speeds are the same.
Symmetric DSL