Ask me raises an action request on this phone, with no hub needed. Like requests from the hub, it alerts you through your rules: an Alert rule for the system code Action requested shows it as a notification. Answering it runs the Demo action, which sends your answer to the demo webhook when the hub is reachable.
In a rule's steps, add an Action step and pick Plugin: Demo control, or add a Delivery step and pick Slide in from right. The chime, the two textures and the Demo Orange theme are in Appearance.