I specifically mentioned Twilio because anyone can build a custom solution to address this problem.<p>Someone already has done this (with Twilio) to win the FTCs RoboCall Challenge: <a href="https:&#x2F;&#x2F;www.twilio.com&#x2F;blog&#x2F;2013&#x2F;04&#x2F;twilio-powered-nomorobo-wins-ftc-robocall-challenge.html" rel="nofollow">https:&#x2F;&#x2F;www.twilio.com&#x2F;blog&#x2F;2013&#x2F;04&#x2F;twilio-powered-nomorobo-...</a><p>I also like Twilio ;)