Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home Fax Model Cordless Phone System, White, Wireless (2 Pack)

About this product

[Dual-Port Expansion] Converts a single modular phone jack into two outputs, allowing connection of two devices simultaneously [Please Note] Designed for splitting standard RJ11 phone lines — not for signal conversion or internet/network transmission. Not compatible with VOIP phones or Cox equipment [Stable Connection] 4-conductor duplex in-wall adapter ensures clear, reliable voice and data performance [Universal Compatibility] Works with phones, fax machines, answering machines, caller ID,etc [Plug and Play] Easily plugs into any standard modular wall jack