Sandy owns an iPhone and the AT&T signal in our house is terrible. The same is true for my iPad. What’s odd is I can see the cell tower from the guest bedroom. So in previous wall opening session for speaker installations I noticed horizontal metal bars throughout the walls. Anyway not to get technical, in order to get a better signal I was looking into a cell phone repeater, but that meant I’d have to run cables through the walls mount an antenna in the attic. I had the items in my Amazon cart for months as I dreaded doing that. One day I just happened to stumble upon an AT&T Microcell. This unit has an antenna and it routes cell signals from your phone to your router. We had it for a few weeks and we haven’t had any dropped calls. It is only for the iPhone though.