DSL

DSL (Digital Subscriber Line) is a technology for transmitting high-speed internet over standard copper telephone lines. Unlike traditional dial-up connections, DSL allows both voice and data to be transmitted simultaneously on the same line, making it possible to use the phone and internet at the same time. DSL achieves this by using higher frequency bands for data transmission, while voice calls use the lower frequency bands.

There are several types of DSL technologies, with the most common being ADSL (Asymmetric DSL) and VDSL (Very-high-bit-rate DSL):

• ADSL (Asymmetric DSL): Provides higher download speeds than upload speeds, making it suitable for home users who consume more data than they send.
• VDSL (Very-high-bit-rate DSL): Offers significantly faster speeds than ADSL, with download rates that can reach up to 100 Mbps, depending on the distance from the service provider’s central office.

DSL speeds are affected by the distance between the user and the local telephone exchange. The farther the signal has to travel, the slower and less stable the connection can become, which is a limitation of DSL technology.