Today "Microsoft Windows" called my mother's telephone. Both she and I picked up the phones. I listened to see how she would handle it. The call was a voice-activated tape recording. I had hoped my mother would hang up, but she didn't. First, she couldn't hear what was said. Second, she was absolutely confused. I see this a lot when she gets telemarketing calls -- all scams. We get several calls a day from various telemarketers/scammers. I am starting to see her phone as a serious problem. I would love to rip it from the wall, but she needs it to talk to other people. I've heard that AT&T is offering $50K to someone who can come up with something to detect robocalls. I hope they find something soon. I would definitely subscribe to it.
Of course, then the scammers would find some way to work around the robocall detector.