Ghost Messages

On the heels of the strangest sentence of the week, someone has been leaving mid-paragraph rants on my answering machine. One of these is replicated for you here by way of example:

"...San Francisco, or some of them other places. Yes, it's transferable. He's
been talking about that for a while. Yes, I'm sure that's true. Manageable. Only the finest cuts..."

Is this someone's cellphone dialing me by accident? A message from beyond the grave? What?