软交换是下一代网络的核心设备之一，也是目前电路交换网向分组交换网演进的设备之一。
Soft exchange is one of the core equipment of the next-generation network and also one of the equipment of evolving from circuit exchange network to packet exchange network.
在这里概述的题目包括点对点链路，电路交换，分组包交换，虚电路，拨号服务，和WAN设备。
Topics summarized here include point-to-point links, circuit switching, packet switching, virtual circuits, dialup services, and WAN devices.
在这里概述的题目包括点对点链路，电路交换，分组包交换，虚电路，拨号服务，和WAN设备。
Topics summarized here include point-to-point links, circuit switching, packet switching, virtual circuits, dialup services, and WAN devices.
应用推荐