Philips 3-Way Phone Modular Splitter Line Wall Adapter Ivory Three Way Triplex Telephone 2 Line Device Tap Jack Snap-In Converter, Single Pack
Allows you to plug three modular devices into one jack (phone, fax, modem, etc.) If you have two phone lines coming into one wall jack, both will be available to all three. Line 1, line 1, and line 1 or Line one/two, line one/two, and line one/two.