No matter whether it is 1G, 3G or PHS, they will have converged and interfaced with local area networks, before going underground into optical fibers or perhaps other more advanced circuits that are even faster.
無論 1G、3G、PHS 還是無線區域網路，勢必互相交錯整合，然後信號進入地下，在光纖或者某種更先進的電路中急速奔馳。