Man of Honour
You somehow using them all at the same time? He said "in use".
The ones in drawers are being used by aliens, obviously. Or maybe the secret world government. Or maybe aliens are the secret world government. Either way, the phones are in use. QED.
Whatever's next on the list of revelations will be the same as all the previous ones (including the one that this thread was started in anticipation of) - nothing of any importance. Lots of words but no content.