Ha, reminds me of the tiny 3G picostations you could get from your mobile operator for a while when 3G was in its infancy - if you said you had really poor signal at your home, they would send you a small 3G station you could use in your home and which used your own internet for data and calls....but the hardware had a GPS built in to make sure it was never moved from the address it was assigned to(otherwise you could take it say, abroad, and make calls with your own numbers without paying for roaming - not that in that specific scenario paying for roaming would have made any sense anyway).