It also begs the question of national roaming - the incumbent arrangement of discrete networks is a right royal pain in the backside. There is little to no benefit to the customer who has to suffer the vagaries of their chosen network provider. Yet cross the border to another country and you can roam freely across any of the national networks, virtually seamless coverage. Although to actually try and use foreign roaming still borders on financial imprudence.

This technology, if taken on board by all of the networks, would see that village hall festooned with five discrete sets of services and equipment. Madness!