These incredible network functions are realized due to many intelligent control mechanisms, such as signaling, routing and survivability technologies.

这些功能的实现，得益于信令、路由和生存性等智能化网络控制技术的引入。

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These functions are performed at each signaling point in the network and ensure that the user part messages originating at one point are delivered to the same user part at the destination point.

这些功能在网络中的每个信令点处得到执行并要确保将某点发出的用户部分消息送达到终点的同一个用户部分。

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