apparently Directv bought Lifeshield and was due to start marketing it the first quarter of this year; so, most likely that is who is calling. Still have to be careful though and don't give out any personal information. They would ask if you are a directv customer I suppose. I expect they are calling existing customers. It says online they expect to integrate the system with Directv in the future I don't have a clear idea of what this does. I would ask them to send literature if they called. Well, actually they have called from Utah twice but I don't answer calls where I don't recognize the number.