A few years ago, I had a series of spam robocalls. I believe that they were received on my landline which lacked caller ID. So I would pick up and say "Hello",

A few years ago, I had a series of spam robocalls. I believe that they were received on my landline which lacked caller ID. So I would pick up and say "Hello", and an elderly woman's voice would say my name, with a question mark. And at first I'd go "Yes?" or "Speaking." and then nothing would happen. I assume that they were fishing for a live human response. However, it was chilling, because the voice that was selected was very reminiscent of my late grandmother who'd passed away about 20 years ago. And I'd hang up very rattled that some spammer/scammer knew my given name and exactly the sort of voice to get an emotional response out of me.