I’ve had some success with this method. When I get a scam call, I’ll politely answer all their questions. And I’ll ask a few of my own. And I’ll do all of this in Hungarian. Twice already I’ve had the exasperated scammer say “I don’t understand you. You are off our list.”
I realize, of course, that not everyone has the time or the expertise to do this. But it has worked for me.
