Why is it better than a standard modem and telephone line?
Modems were designed to allow computers to communicate over the standard PSTN – a system designed for voice communications only. This limits the speed that computers can talk over the system as it is not sufficiently high quality – every digital signal has to be converted into an audible tone and then ‘heard’ by the remote computer. This process is called modulation demodulation. The fastest possible speed over a PSTN line is 56kbps. Broadband ADSL upgrades your line to one designed for digital communication, capable of up to 2mbps.
