RJ12 = 6 pin. Crimp Connectors to make your own cables usually ideal for.
RJ12 Male Plug to RJ45 Ethernet Broadband Modem Cable 6P6C 8P6C ADSL Wire, 6 pin
6 Pin RJ12 to RJ45 Cable Network Telephone Lead Router ADSL Broadband Ethernet
Pack of 10 RJ12 6 Position 6 Conductor Modular Plugs Phone ADSL Network 6P6C
DRUT RJ12 to RJ12 (RJ11) 6-Pin Male to Male Cable with Female Coupler, Gold-P...
20x RJ12 6PIN 6P6C ADSL VDSL TELEPHONE CABLE CRIMP END CONNECTOR PLUGS (RJ11)
10x RJ12 6PIN 6P6C ADSL VDSL TELEPHONE CABLE CRIMP END CONNECTOR PLUGS (RJ11)
