They've been calling my cell phone several times a day for over a week now!! I don't answer and got fed up with constant calling so I googled their phone # and got this site. Seeing as how one of you said it's ADT, I think I might email their customer service to complain about their crap telemarketing.
Google.com search shows this number belongs to ADT. I'm on the do not call list and ADT is breaking the law by calling me. Let's not buy alarm systems from ADT.