The phone keeps ringing.

It started a few weeks ago, once a day, at different times: Unknown caller. I answered once or twice - nothing. No person. No recording. No breathing, even. Just nothing.

In recent days, it's become more frequent. Once at 8:00 a.m., or within ten minutes of it. Again in an hour, or two. Today, they've called three times before noon.

My cell is on a Do Not Call list. I haven't shopped for insurance in over a year, or used any new online shopping places.

Who is calling? What do they want? And if they're never going to let me answer, how do I make them stop? (We like to sleep late on Saturdays.)