Who called from 4044457529

Received called, answered, no one there then after 5-10 seconds call disconnect. I heard no sound what so ever on incoming call. Caller ID said Atlanta, GA.

IC Systems is a collection agency, handling collections for AT&T Wireless. Calls are computer generated & most times there is no one on the line.

Received a call from (404)445 7529 it  was no one  on the  other   said hello several    times  after a few  seconds the call  hung   up.  This i is the fifth  or  six  call  from   this    number.