Poke... this?

[He looks at the device and finally is properly looking at the camera again, the crack not quite disappearing as his expression smooths out, but becoming much harder to notice.]

This thing is a telephone? But how? It's not connected by any wires?

[He has no clue that it's broadcasting his image either as he moves it around to try and find where a wire might be running from.]

And it's rather small for a telephone as well.