It is a modem technology that allows access paths for multimedia & high-speed data communications. In essence, DSL is a specialised telephone line which allows users to access the internet at much higher speeds than from a standard 56k modem; access is accelerated by between 10 & 40 times. DSL offers much faster speeds than ISDN. It can be used for applications such as video conferencing & interactive multimedia as well as fast access to the internet. Users can also play games with much lower pings & multi-task with ease. It is designed to solve the bottlenecks that occur in the data access network, causing sluggish activity. DSL provides uninterrupted connectivity, access is available 24-7; there is no need to sign on to the internet & telephone calls are not disrupted.

Many ISPs offer an ADSL service but at present the ADSL service is not generally accessible if you are not in possession of a BT line. However, developments are happening all the time & changes to this are expected with the development of processes such as Local Loop Unbundling. DSL will only work through metal wiring such as copper & aluminium, so if your phone line has any fibre optic cable between you & the exchange you will be excluded from DSL services.

Usually DSL demands an initial installation fee & thereafter a flat-rate monthly fee. At present it is necessary to sign up for a minimum contract of one year in order to subscribe to the service.