网关的主要部件包括: (1) 线路交换网络(switched-circuit network,SCN)接口卡,这是一种典型的T1/E1或者叫做PRI ISDN线路接口卡,它们与线路交换网络进行通信。
基于14个网页-相关网页
SIGTRAN有效解决了电信网信令在IP网中高可靠性,高实时性传输的问 题,保证电路交换网络(SCN,Switched Circuits Network)的信令(主要 是七号信令)在IP网络中的可靠传输。
基于3个网页-相关网页
包交换网络 packet switched network ; [计] packet switching network ; packet network ; PSN
构建高级的交换网络 BASN
公共包交换网络 Public Packet Switched Network ; PPSNPublicPacketSwitchedNetwork
分组交换网络 Packet Switched Network ; PSN ; [计] packet switching network ; Packet Switching
电文交换网络 message switching network
电路交换网络 Circuit-Switched Network ; switched circuit network ; CS networks ; SCN
多层交换网络 BCMSN
交换网络母线 Switching Network Highway THW
无交换网络 non-switched network
人们因为工作计划,家庭计划等等,就是不能换网络。
People have work plans, family plans, etc, etc, that they just can't switch.
道格说确实是有网络的,所以如果真搬家去伯利兹的话还是可以继续写博客,只是换种方式——用脚在白色沙滩上写。
Doug said that yes, they do have Internet, so if we move to Belize I can keep blogging, but I'll be doing it with my toes in the white sand.
另一部分原因可能在于,日本的每个移动运营商都有一套自己的网络标准,所以,用户要换运营商就一定得换手机。
And it is partly because each Japanese network has its own standard, so customers must buy new handsets when they switch.
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