DSL ADSL SDSL VDSL
DSL vs ADSL vs SDSL vs VDSL



: ADSl

Asymmetric Digital Subscriber Line ( ) 16 ( ) 2 256 .

: SDSL

Symmetric Subscriber Digital Line (). VPS 1000 SDSL . sdsl


: VDSL

Very-high-bitratnme Digital Subscriber Line service - VDSL ADSL ADSL ADSL DSLM 60 .