Just called our business and surprise! A robo caller recording! What fun, so much so that I hung up without listening to what the recording was trying to sell me. Nothing on the CID except the number 248-215-0436.
Called and left no VM. I returned call as I have clients in MI but got a message that if I would like to be placed on the do not call list to press 1. Just hung up and blocked the number so I won't ever be hassled by them again (from that number at least.)
What "appears" to end this nonsense, from ANY number, is: After 3 rings, I pick up the phone, and say nothing. It clicks off in about 5 seconds and, as far as I can tell, I don't see any more calls from those numbers. Maybe a computer interprets my number as a dud. I don't know for certain; but try it.