RJ11 to BT Plug crossover cable. Specification: RJ11 6P4C - to BT Plug Crossover wired Length 10 meters Copper cores Colour white This 10m BT to RJ11 4 wire crossover phone modem cable is used for connecting a modem or phone to a BT / Openreach wall socket. Unlike a standard phone cable which typically contains only two wires this crossover cable features 4 wires. Manufactured with copper cores for optimal conductivity. Pins are crossed over to different pins and not to be confused with a rollover which is just reversed on one end.
