There is a new scam out there. The Scammers call, and then hang up. They may even do it several times. That is the bait, they are counting on you calling back. When you do, they bill your Phone like you called a 1-900 number, dollars per minute, and a $20 first minute. There is no way to get your money back since you made the call.
If you don’t recognize the number, and they don’t leave a message, DON’T CALL BACK!!!