Hah, Google already showed off their "book a hair appointment and have a human-sounding robot call the salon for you", what the callees need is a robot that either try to figure out if it's the real IRS calling (although, wait, the IRS sends letters) or an Indian scammer. If it's the latter, then run the "tie them up unnecessarily" script.

Until the scammers figure this out and respond with their own bot. Then, just like Twitter, it'll be bots spamming each other..