I don't have a clue who this is calling my cellphone (and I don't answer numbers if I don't recognize them) but it looks from the comment below that it is a telemarketer. My number is on the Do Not Call Registry.
Apr 26th, 2013
Live person "Chelsie" calling about home security service. Told her I was on Natl' do-not-call list and told her to remove my number from her list. We'll see if that happens.