This fearsome contraption is the handiwork of a couple of amateur DEFCON-types who reckoned that any self-respecting spy plane ought to be able to impersonate cellphone towers.
And that’s exactly what the Wireless Aerial Surveillance Platform does — it tricks AT&T and T-Mobile handsets into connecting to it, then re-routes the incoming calls via VOIP so they don’t drop, while simultaneously recording all conversations to 32GB of onboard storage. It can also handle a bit of WiFi snooping on the side . . .
A commenter makes the point that this thing could be very useful in disaster zones . . . IT