[qasdfdsaq]

BT's network is already handling it in the half of the country VM don't have a presence, and were the providers nationwide until VM won the contract a couple years ago, so I doubt they have a "handling it" problem.

MBNL - not too sure about either. They act as brokers and site managers in many cases as 3 and EE have gone their separate ways with 4G rollout. AUIU they're more and more in charge of just handling the "passive infrastructure" which in my mind entails masts, poles, cabling, and antennas, but some people seem to count backhaul as well.

However as I recall MBNL started off with an exclusive contract with BT for backhaul, before the networks started announcing individual arrangements with VM.