Who called from 3218907942

RECIEVED PHONE CALLS ON 7/31 AND 8/1. I SAID HELLO SEVERAL TIMES A WOMENS VOICE SAID GOOD BY.  ANY BODY KNOWN WHAT THIS ALL ABOUT.  IS IT A SCAM TO FIND OUT IF WE ARE HOME ETC.

Multiple calls in August 2012.  Dead air, then, "goodbye".

Tired of this crap. How can we report this to authorities or sue them for harassment.

Received call today Aug 16, 2012 at 3:33 PM from 321-890-7942.  Showed up as "Cell phone."  Dead air and then "good bye."

im so sick and tired of this phone number calling me... they call and say NOTHING AT ALL and hang up i try to call back and cant get thru..... i have been getting these calls for almost a month now..... how can i stp this