Telephone RJ11 Line ADSL Modem Micro Filter Splitter This adapter separates voice signal and ADSL digital signal from telephone signal Protect the voice signal and ADSL digital signal from the interference of a telephone and a fax machine One RJ11 at one end for line Two RJ11 at the other end for phone and modem Dimension:5.5cm*4cm*2cm( approx) - We specialize in Electronics, Computer, Cell Phone Accessories, Professional Signal Conversion Devices, Adapter & Cables Pickup Location: "Cable Link" Tel: 613-680-6188