1.
Reconstruction and upgrading of Xi′an power administrative PBX network
西安电力行政电话交换网的改造与扩容
2.
Implementation of routing operation mode between NGN softswitch network and power administration network
NGN软交换网与电力行政网路由运行方式的实现
3.
Intranet Telephony: Will your LAN Replace Your PBX?
内部网电话：局域网会替代用户电话交换机吗？
4.
Intranet Telephony: Will your LAN Replace Your PBX? (2)
内部网电话：局域网会替代用户电话交换机吗？（2）
5.
Ringing and tone for telephone automatic switching network
GB3380-1982电话自动交换网铃流和信号音
6.
Subscriber line signalling system for telephone automatic switching network
GB3378-1982电话自动交换网用户信号方式
7.
The Research and Implementation of Management System of Local Switch Network;
本地电话交换网管理系统研究与实现
8.
Application Analysis of the Signaling System in Telepone Exchange Network;
信令系统在电话交换网中的应用分析
9.
The optimization and application of PRI mode connecting with PBX in Ningxia Electric Power Administrative Exchange Network
PRI方式接入PBX在宁夏电力行政交换网中的优化和应用
10.
An Integrated Services Digital Network device on a public switched telephone network.
公用交换电话网上的综合业务数字网设备。
11.
Megaco to bridge PSTN, IP networks
将公共电话交换网与IP网相联的新标准——Megaco
12.
The Structural Optimization of Switching Network Management System under Boss Framework;
BOSS框架下电话交换网络网管系统的优化
13.
Study on the Organizing Pattern of the Cross-region Coal Communication Network;
跨地区煤炭专用电话交换网组网模式的研究
14.
automatic switching of telegraph and telephone
电报-电话自动交换
15.
computer telephone exchange
电脑自动电话交换机
16.
common battery exchange
共电制电话交换机局
17.
electronically controlled telephone exchange
电子控制电话交换机
18.
electronic telephone switching system
电子式电话交换系统