TODAY SOMETHING STRANGE HAPENED.YESTERDAY MY PHONE WAS RINGING ALL DAY BUT TODAY THE PHONE WAS DEAD.I HAVE FULL COVERAGE IN APARTMENT.MY FRIEND WHO IS LIVING WITH ME HAVE THE SAME PROBLEM.SHE START TO CALL ME FROM HER PHONE BUT WAS ANSWERING THE MESSAGERY.AFTER THAT I TRY TO CALL HER AND IT WAS THE SAME.OR THEY SAY NUMBER NOT IN USE.NOW I START TO RECEIVE A LOT OF MESSages with missed calls.Someone can tell me if had the same problem.i was so pissed of today