Got so many calls from this number...

Finally I listened to the whole message and there was a "Press one if you want to speak to a consultant."  Perfect!  I did and got a real live person.  

Next, I got the AIR HORN we have for soccer out of the closet.  

I asked the person on the other end of the line  "Can you hear me okay and are you wearing a headset?"  

"Yes, why do you ask?"  

A five second air horn blast right into the handset and POOF...
we haven't gotten called back by that number since.  Excellent trick!

Senior medical alert.  Called my cell.  I don't give out my cell.
Free system, but $35/month fee.

Recorded message, some kind of senior citizen health program, and not very good at hanging up when you hang up.  Reported to donotcall.gov and to the FCC.