Strike One: Only works on Google-branded phones. Which among other things means Google harvests data from it, because otherwise they wouldn't do it. Strike Two

Strike One: Only works on Google-branded phones. Which among other things means Google harvests data from it, because otherwise they wouldn't do it. Strike Two: Stupid kludge. The right solution is a DTMF code that plays iff a real human answers, so it only requires two transistors rather than a 50-kilowatt tensor network to recognize. That would have to be legislated, of course. Strike Three: Hiring Mechanical Turk to "wait on hold for me" is probably easier.