I noticed my new GE 29871 answering machine lost some of it's settings on a recent power failure. I just assumed it had a battery backup, as most devices of this type do. After calling GE, I was told that newer versions of this machine have come out with a battery backup. What is strange is that these newer versions carry the exact same model number. That means that if you buy them in the store, there is no way of knowing if it includes the battery backup, or not. Seems like they are obligated to give this newer version a different number like a 29871-A, so that people can
identify the newer models. I also assume that it is clearly written on the box that it has a battery backup, but who knows.
Sherwin D.