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结合目前用户跨区域通信的需求,从拨号方案、交换机用户数据制作、计费实现方式等多方面论述了基于交换方式的广域虚拟网业务实现方案。
Based on the current needs of users in cross-regional communication, this paper discusses the implementation of wide-area virtual network based on the exchange mode from many aspects such as dial plan, subscriber data creation and billing implementation.