This is a Modem cable only! Uses a special and expensive extended Shielded RJ12 plug these are much stronger/better crimp so stop any chance of cable pull out due to the cable being strained at angles!
eBay
Network Ethernet Cable Tester for RJ11 RJ12 LAN RJ45 Cat5 Cat5e Cat6 Cat6a Cat7 UTP/ STP Shielded Cable and RJ11 RJ12 Telephone
Aliexpress UK
RJ11 Male to RJ11. RJ11 Plug to RJ11 PLUG. Commonly used with ADSL Microfilter attached to phone socket.
eBay
USB To Rj11 Plug Cable USB To Rj11/DC 3.5 Radar Detector Power Cable Thickened USB Plug Connect To Car Charger Fit Most Radar
Aliexpress UK
This cable can be used to connect your ADSL Modem (with an RJ11socket) to the Filter/Splitter. plugged into your BT ADSL enabled wall socket. Connection: 4 Pin RJ11 to RJ11. Suite for ADSL connection.
eBay
USB To Rj11 Plug Cable USB To Rj11/DC 3.5 Radar Detector Power Cable Thickened USB Plug Connect To Car Charger Fit Most Radar
Aliexpress UK
This cable can be used anywhere a 2 or 4 pin RJ11 connection is required but are most commonly used to connect your ADSL Modem (with an RJ11 socket) -. to the Filter/Splitter plugged into your BT ADSL enabled wall socket.
eBay
RJ45 Crimper RJ11 RJ45 Crimping Tool Ethernet Network LAN Cable Crimper Cutter Stripper Plier for 6P 8P RJ11 RJ12 RJ45 Connector
Aliexpress UK
Built with durable PVC coating and high-conductivity copper core for stable signal transmission and clear connectivity. RJ11 Male to RJ11 Male cable. 1 x RJ11 to RJ11 ADSL Cable. Connector A: RJ11 Male.
eBay
AMPCOM RJ45 Crimper RJ11 RJ45 Crimping Tool Ethernet Network LAN Cable Crimper Cutter Stripper Plier for 6P 8P RJ11 RJ12 RJ45
Aliexpress UK
This cable can be used to connect your ADSL Modem (with an RJ11socket) to the Filter/Splitter. plugged into your BT ADSL enabled wall socket. Connection: 4 Pin RJ11 to RJ11. Suite for ADSL connection.
eBay
SAMZHE RJ45 Crimper RJ11 RJ45 Crimping Tool Ethernet Network LAN Cable Crimper Cutter Stripper Plier for 6P 8P RJ11 RJ12 RJ45
Aliexpress UK
Enhance your internet connectivity with our premium RJ11 to RJ11 ADSL cables. A popular choice as a high speed modem cable for providers such as Sky, BT, TalkTalk, EE and more. This cable can be used to connect your ADSL modem (with an RJ11 socket) to the Filter/Splitter plugged into your BT ADSL enabled wall socket.
eBay
J45 RJ11 Crimping Tool 3 in 1 LAN Cable Crimper Cutter Stripper Plier Compatible with 6P 8P RJ11 RJ12 RJ45 Connector
Aliexpress UK
Durable and robust design : High specification cable, designed for maximum signal transfer, clear voice integrity and optimum performance.
eBay
RJ45 Crimper RJ11 RJ45 Crimping Tool Ethernet Network LAN Cable Crimper Cutter Stripper Plier for 6P 8P RJ11 RJ12 RJ45
Aliexpress UK