RJ45 8P4C male plug on one end and RJ11 6P4C male plug on the other. Interface: RJ45 8P4C male to RJ11 6P4C male. RJ45 male to RJ11 male converter cable is designed to connect your RJ11 devices such as analog phones, fax or answering machines etc. through a VoIP RJ45 ethernet port.
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