A phone wire is a cable used for connecting a phone to the phone wall socket. It is also used for LAN connections, infra-red audio control data, and connecting a modem or a fax machine to the phone wall socket. It is made up of a twisted pair of 24 gauge (AWG) cables with eight conductors or four pairs of wires. Its solid conductor wires can connect to 66 to 110 punch-down blocks at the central node, allowing easy interconnection.