2Wire 2-Line inline DSL filter with a give back jack allows DSL subscribers to use a DSL modem with their existing telephone device, (such as fax machines, answering machines, and analog modems), at the same time.
The 2-line inline filter installs easily between phone jack and telephone device.
Once the filter is installed, telephone devices will be completely isolated from the DSL frequency spectrum resulting in clear phone service,Good Condition.#(2919)A17,a1
