Fraudsters are calling victims and letting the phone ring just once, hoping to get targets to call back. Recipients who do call back are connected with a 900 number that charges per-minute fees.

WASHINGTON (CBS) – If an unknown number with a "222" area code rings up your phone in the middle of the night – don't call back. The FCC is warning of a new "One Ring" or "Wangiri" robocall ...

If you pick up your phone and see a missed call from a number you don't recognize, you may want to think twice about calling back. You could be a potential victim of the growing "one-ring phone ...