Home Security Scammers
I don't know if this is the normal group of scumbags but this seems like a new M.O. The normal home security/Rachel from Card Services etc. scumbags use a recorded message and invite you to press 1 to hear more about the offer etc. In this case, there is someone on the other end of the phone right away.
In any event, my number is on the do not call list. I don't typically pick up numbers I don't recognize, but the call came in with a local area code.