Amazon.com: RJ45 to RJ11 Cable, 6 Feet Phone Jack to Ethernet Adapter RJ11 6P4C Male to RJ45 8P8C Male Connector Plug Cord for Landline Telephone : Electronics
Amazon.com: Treedix 4PCS RJ11 6-pin Breakout Board with PCB Mount Black Modular Jack 6P6C Telephone Socket Connector Jack Coupler : Electronics