A telefon netzwerk, also called a telephone network or phone network, is a telecommunications network that allows telephone communication between end users. It is composed of a set of telephone lines, telephone exchanges, and other equipment that are interconnected to facilitate the transmission of voice, data, and other telecommunications services.
Telephone networks have been in existence for over 100 years, and they have evolved significantly over time. The first telephone networks were analog, but today most telephone networks are digital. This digitization has allowed for the development of new services, such as caller ID, voicemail, and call forwarding. Telephone networks are also essential for the operation of the internet, as they provide the underlying infrastructure for data transmission.