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随着经济的发展，无论是新建城市的住宅小区、商业楼宇，还是边远地区及中小型村庄等都对通信服务提出了迫切的需求。而这些用户通常是远离交换局，数量少且相对集中，业务需求多样化。如何快捷、经济地为这类用户提供通信服务，已是网络运营者亟待解决的课题。传统的解决方案?
With the economic development, both the residential area in the new city, commercial buildings, remote areas and small and medium-sized villages put forward urgent needs for communication services. These users are usually away from the exchange, the number of small and relatively concentrated business needs diversification. How to quickly and economically provide such users with communication services has become a pressing issue for network operators. Traditional solution?