Digital Subscriber Line or Digital Subscriber Loop (DSL) is a combination of transmission technologies that use a telephone line as a transmission medium. DSL is a technology for transmitting high bandwidth information to households and small and medium-sized businesses over regular copper telephone lines. It mainly supports symmetrical and asymmetrical transmission modes in subscriber lines for the transmission of public telephone networks.
Asia Pacific dominates the market due to the increasing demand for Digital Subscriber Line network equipment, due to the rise of the telecommunications market in emerging countries such as China, India, and others. For example, according to the Telecommunications Department of the Ministry of Communications of the Government of India, India is the second-largest telecommunications market in 2018 with a subscriber base of 1.18 billion. The wireless industry is expected to have a combined economic value of $217.73 billion by 2020.