Hung up when answer ed  returned called picked up messages voice full

The person has called three days in a row.  There is some breathing and maybe keys jingling a bit and then they eventually hang up.  I called the telephone company and reported it so it could be blocked.

this number has been calling me non stop and when i call back it says mailbox full. doesn't even ring... wtf?
anyone know who this is???

I am getting completely fed up with this caller.  As previous people have mentioned, there is no voice on the other side.  I've gotten to the point where I don't even say "hello" anymore.  If you cannot tell me who you are, why should I waste my time!

I received the same BS call. Maybe it's a bot checking numbers?