Jama: It would be a bummer if your 'home zone' was one poxy little overloaded cell site and you needed to call 111. Oh well just like TXT messaging life is cheap.
But the PSTN network is now managed in the same way. TCL here in Wgtn/Chch and newer parts of Telecom's network there are fibre fed roadside cabinets where there isn't the capacity for everybody fed off a cabinet to make a call at once unlike the old days where every phoneline ran straight back to the exchange.