I always ask the robocalls to say something specific.

It finally worked the other day! A robot repeated "chrysanthemum" back to me when asked. Sadly it seemed to be limited to this one single trick; as I continued my attempts to exploit it, it abruptly apologized and ended the call.

Cute, but one day I am going to get lucky and a scammer is going to get absolutely wrecked.

Chrysanthemum is also my go to. That or “You’re in a desert. You’re walking along in the sand when all of a sudden.. you look down and see a tortoise..”

"Tortoise? What's that?"

Wait, what's your endgame here?

Great, the dead internet theory is being backported to landlines.

So some time in the future, the Telcos will report, that 30%-50% of calls are Scammer AIs talking to Granny AIs

It would seem to me that it's a lot easier to build an AI that acts as a non-tech-savvy granny to keep scammers busy, than one that actually successfully executes a complete scam from start to finish on a real life person.