Telephone patch cable. Replace shorter cables with this extended length cable. Reserve wire connections for voice lines. Reverse cables reverse the right to left order of the pins inside the connectors.Flat Cable BodySilver Satin Color4 ConductorsRJ11 Connectors*Monoprice continually strives to improve its product line to bring our customers the best products available. Therefore, changes may be made to listed specifications without prior notice. Item received may not match photo or specs shown.