I am basing this off of years of off and on thinking it's fun to mess with phone scammers, which it sometimes can be, but engagement seems to bring on more calls. I know personal information is swapped around scamming groups. I am convinced that if you let them run their script and try to interject or delay or otherwise waste as much time as possible, they pass on your information out of spite (I would be quite a jerk and learned to swear in some fun languages). I know these people are scum, but these days I just go with "hello" and a hang up.
I never wanted to mess with scammers before.
But today's AI voice threat is new and very different from past scams. In other words, they can now use your voice and scam folk you know and love. My immediate response to start to negate this garbage is not give 'em my voice. Seems sensible until something better comes along.
I don't know how big or small of a sample the scammer needs to generate a working AI voice simulation. It may be just a few key words in your normal voice, like "Hello", "Good", "Yes", and other answers that they seem are very pointedly wanting you to say. Or it may be 30 seconds of straight conversation. Fact is, I don't know and won't chance it in my normal voice or expected responses.
Caller: How are you?
Expected: Good, Fine
Me with mish-mash accent: Well, I'm just finer than a frog hair. How 'r yeeew?
Caller: Can you hear me ok?
Expected: Yes.
Me: Why, I can hear an ant pee on a mothball. Yeew jus' keep on 'a talkin'.
You get the idea. Don't give expected answers and don't use your normal voice. Pro Tip: Try not to use a foreign accent that you don't know how to speak. One real person started speaking to me in that language. The only time I ever hung up LOL.
Oddly enough, I've been doing this long enough that, for some reason, the calls have lessened. Also automated and live humans hang up sooner when I start talking these days. I think they're on to me LMFAO!
Also fun to keep asking the automated calls "Are yeew a human?" Trips 'em up sometimes. Some have lied and said "Yes" or said they're transferring me to a manager.
Won't be stopping anytime soon with the accent thing. Having way too much fun with it.
Late edit: That accent thing is fun for me, but if I remember correctly, one of the articles I read mentioned having a safe word to be used for verification with friends/relative .