Got a call. No message left.

Keep getting calls from these jerks, then they hang up. Cant call back because the "number is disconnected"

I answered the call.  Guy on the other line says he represents Western Phone directory and asked me to list my business. I told him that I closed it down. "oh" was his response. A short pause, then he hung up. Then they called again a week later. I blocked the number.  I live on the west coast, he wants me to list on a Florida directory?

Rec'd call.  No message.  Caller ID:  Miami, FL   Will block #

Received a call. Answered, waited two seconds and the caller hung up. No talking, no breathing, just silence.