If it is a robocall, I would hang up and not say yes. Otherwise "I can hear you" and avoiding saying yes is good advice. And as for deepfakes, I assume they be

If it is a robocall, I would hang up and not say yes. Otherwise "I can hear you" and avoiding saying yes is good advice. And as for deepfakes, I assume they become good and widespread enough soon, that no telephone contracts become enforcable.