What are the different types of DSL that are available?
ADSL : Asymmetric Digital Subscriber Line – ADSL reports a downstream speed, however it’s upstream speed is only a fraction of the downstream speed. ADSL is permitted to be used in residential locations only. SDSL : Symmetric Digital Subscriber Line – SDSL provide the same bandwidth both downstream and upstream. Meaning whether you are downloading or uploading information, you have the same high-quality performance. SDSL provides connections speeds within the same range as a T1 Leased Line – but at a fraction of the cost. RADSL : Rate Adjustable Digital Subscriber Line – RADSL allows the transceiver to start up by automatically increasing the line speed to the highest attainable data rates that can be readily achieved over a given loop. RADSL also works with symmetrical download and upload speeds just as SDSL does. IDSL : ISDN Digital Subscriber Line – IDSL technology is symmetrical, just as SDSL is, however it may operate at slower speeds and longer distances.
