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RJ11 to BT Cables

26 products

RJ11 to BT plug cables for connecting modems, routers, fax machines and phones to BT phone sockets, in straight and crossover wiring and lengths from 2m to 20m.

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Straight or crossover?

Most modern broadband routers and phones use a straight RJ11 to BT cable. Some older modems and fax machines need a crossover cable, which swaps the two line wires; if a straight cable gives no dial tone, a crossover cable is usually the answer. Crossover cables have crossover in the product name.

A longer cable lets you place your router somewhere with better Wi-Fi coverage. For routers with an RJ11 socket at both ends, see our ADSL modem cables.