An acronym for Voice Over Internet Protocol, the technology allows telephone calls to be made using the Internet as the carrier instead of the traditional telephone networkNetwork In computer language, the term network defines a set of hardware and software devices which, when linked together, enable the exchange and sharing of resources, data or information. In a computer network, the devices that generate, route and terminate data are called network nodes., the one built over the last 100 years with copper cables and special exchanges. It is thanks to VoIPVoIP An acronym for Voice Over Internet Protocol, the technology allows telephone calls to be made using the Internet as the carrier instead of the traditional telephone network, the one built over the last 100 years with copper cables and special exchanges. It is thanks to VoIP that a telephone connected to a fiber-optic network can call any other user who is still connected to the traditional telephone network. that a telephone connected to a fiber-optic network can call any other user who is still connected to the traditional telephone network.