docs: def TransferDemo(handler, t):
      """
      Demonstration of transfering to another number
      """
      t.say ("One moment please.")
      t.transfer(MY_PHONE)
      t.say("Hi. I am a robot")
      json = t.RenderJson()
      logging.info ("TransferDemo json: %s" % json)
      handler.response.out.write(json)