RJ11 Cable 3 Way Splitter 6P4C Connector Phone Line Cord Adapter with 3 inch Cable for Landline Telephone Wire, Black, AV01303

works great. able to connect it to the internet box and have 2 lines.

Used it to connect an extension phone to a modem.

I have been looking for this item for awhile now. I needed this because I set-up my parent's home office, with the computer, all-in-one fax, printer, copier, etc; And this worked great to link everything together. It came the next day, and at a great price as well.

Simple, foolproof setup — The splitter plugs directly into a standard phone jack, and instantly gives you two outlets. No wiring or technical skill needed — just plug and go. This makes it great for quickly adding a second landline phone or fax without rewiring.

quick delivery. I would have more confidence in the product if the line snapped in for a solid fit. It is working.