Britain has been moving toward shutting down traditional radio communications systems and moving all emergency services to a private “4G Emergency Services Network”.
While much more expensive than their existing emergency radio system, it would at least be less reliable than what they have now. (Not a joke.)
They are also considering running both – radio system for voice and 4G for data (the first rule of government contracting is never do one when you can do two for twice the price!)
Source: Britain mulls ‘complete shutdown’ of 4G net for emergency services • The Register