calls and does not speak and shortly hangs up. Since throwaway phones can be programed anywhere in the country to make you think someone is out of the area, I trust no one and wonder if they are checking to see if we are home or not. Called back and it says "mailbox is full -Bill.
Beware of any caller who does not identify themselves. You may be at risk
They may be a nut or trying to hurt you.
Other than the number, the only thing that shows up is CALL.
I have blocked these calls but I always gets call again from a different number. The caller ID only says "CALL". When I answer, no one responds. When I call back the answering machine says "the mailbox for John Doe [or Bill] is full".