ADSL stands for a technology literally described in Spanish as “Asymmetric Digital Subscriber Line”, its acronym comes from the English name “Asymmetric Digital Subscriber Line”; this system enables the transfer or broadcast of all kinds of digital information enjoying broadband speed through telephone lines, thus providing a multiplicity of services such as one of them is the Internet service, that is, thanks ADSL users have the possibility to access the Internet without having to intercept or interrupt incoming telephone calls to a line.

In other words, it is a high-speed digital line or technology supported by a copper braided cable that guides the conventional telephone line; This is qualified as a type of Internet connection that provides digital data transfer through a telephone line.

Today, the different telephone companies are establishing other ADSL systems such as ADSL2 and ADSL2+, which manage to differentiate themselves from the first due to the speed and technology used by them, given that ADSL manages to reach download levels of up to 8 Mb per second while the other two have the capacity to reach up to 24 Mb per second, although the limit for sending them is 1 mega per second.

It is important to make it clear that ADSL technology has a lower bandwidth than other technologies, which among them we can mention technologies such as cable or Metro Ethernet, in these cases their urban wiring is made up of fiber optic wires and not copper as is the case with ADSL, devised around the 1950s and 1960s.