Pre-recorded message about home break-ins and a "free" security system offer. I've heard the same recorded message from a dozen numbers in the past couple of years, so there's a high probability of scam/fraud. I would not recommend calling the number back, as any prompts may end up forwarding your call to an international long-distance or premium rate number and can result in large charges on your bill.
Called and hung up. Thought it was a friend from the West Coast and called back. Hung up immediately when I heard a computer voice: press any number to be removed from this list." Hope I didn't just lose $$$ on a scam.