Amazon.com: USB A Female to RJ11 Ethernet Network Converter Adapter Phone Cable Coupler (2 PIN) : Electronics
Amazon.com: BT Telephone Socket Adapter UK to US | British Telecom Female Jacks to RJ11 4 Wire Male Plug | Cable Adapter Landline Port Converter Extender FAX Modem Corded Cordless Phone SKY
Amazon.com: Two Way Telephone Splitters, Uvital Male to 2 Female Converter Cable RJ11 6P4C Telephone Wall Adaptor and Separator for Landline (White, 4 Pack) : Electronics
Amazon.com: uxcell 6P4C RJ11 to RJ11 Female/Female Telephone Cable Coupler Adapter White : Electronics
Amazon.com: RJ45 to RJ11 Converter Adapter Connector M/F Cable,Uvital Telephone RJ11 6P4C Female to Ethernet RJ45 8P8C Male Converter Cord(2 Pack) : Electronics