At the moment I'm pretty inclined to hang up if I feel I'm wasting my time with a robot.
But maybe soon we will not even realise we speak to a robot, given the current speed of ai development.
I wonder how that will erode trust in calls. I moved from cold emailing and cold LinkedIn to cold calling because of the massive amounts of ai spam I have to compete with. But maybe cold calling will die soon as well if the robots emerge.