Got the same crap, the phone spammer called 6:25 10/12/2014 left no name and told my dad it was important I call back. How dare they tell a senior this and worry them.
I don't answer calls from numbers that are not in my cell phone address directory. This number called Oct 18, 2014 and left no voicemail message. When I called back (after adding the *67 ID blocker), it just went to a "Google Subscriber" voicemail box. Hmmm...what kind of SCAM is someone running I wonder?