DSL is still readily available and is now the most basic form of internet access available.
A Digital Subscriber Line (DSL) service creates a connection to the Internet through the phone network. Fortunately, unlike dial-up, DSL can operate using a single phone line and can work without preventing normal use of the phone. So there’s no need to lose the phone! DSL uses high frequencies, while the low frequencies are left free for regular phone calls. Filters then separate these frequencies and are installed at the premises.
The word DSL originally stood for ‘digital subscriber loop’. In telecommunications, the term digital subscriber line tends to be used for Asymmetric Digital Subscriber Line (ADSL). That is because ADSL is the most commonly installed type of DSL. The data throughput of consumer DSL services typically ranges from 256 kb/s to 20 Mb/s for download. For ADSL, the upload rate is lower than the download, hence the designation of a Symmetric Digital Subscriber Line. With a Symmetric Digital Subscriber Line (SDSL), the download and upload speeds are equal.
Despite – unfortunately – being the only option available in some business parks, DSL strangles the digital capabilities of all but the smallest companies. Our advice is to stay clear.