Recorded call came in on Land Line, showing Unavailable on Caller ID.  Said it was Julie from Home Security Systems.  Pressed *61, which is supposed to block calls from this number with AT & T.  Called number back later and recording say number is disconnected.  Googled number first, before I got on 800 numbers, and it shows number to be from a Hammond, IN school.  I believe this to be a scam call.