bought this when power went out
back to the future-Most of our phones, like everybody else, depend on line power for operation. This is a cheap solution. Have one or two around the house, in the garage or wherever, to use when the power keeps the cordless phones off. Works great. I put one in my shop, and one in the utility room.One of our neighbors (we live in the mountains) had to climb the hill behind their house to get up where the cell phone worked during a recent power outage. Didn't own a wired phone.