It's a silly person who calls herself, "Abbey". Says, "good morning how are you today"? Then she babbles something about a home security systems and hangs up. Most probably hangs up when they realize they are talking to an answering machine. I never pick up the phone for unknown numbers. DNC means nothing to them.
I've gotten 4 phone calls from this number today and 3 yesterday. They've continuously called me the last two weeks despite answer and hitting "1" to be put on the remove call list.