1.
Research on Establishing Video Communication Based on Public Switched Telephone Network;
基于公共交换电话网络可视通信建立的研究
2.
If it connects, the sending machine scans the document and transmits the image over the public switched telephone network (PSTN) to the receiving machine.
如果接通了，发送机就对文件扫描，然后通过公共交换电话网（PSTN）向接收机传送文件图像。
3.
To be successful, Internet faxing must provide reliability and performance equal to or better than traditional public switched telephone network faxing.
为了获得成功，因特网传真必须提供与传统的公共交换电话网传真相同、甚至更好的可靠性和性能。
4.
Megaco to bridge PSTN, IP networks
将公共电话交换网与IP网相联的新标准——Megaco
5.
common battery exchange
共电制电话交换机局
6.
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。
7.
In data communication, the connection through the public switched telephone network from a terminal to a service, network or computer.
数据通信中，通过公共电话交换网，实现一个终端和一个服务部门、网络或计算机的连接。
8.
The number of telephone lines connecting the subscriber's terminal equipment to the public switched network and which have a dedicated port in the telephone exchange equipment.
连接用户终端设备和公用交换网并具有一个电话交换设备专用端口的电话线数。
9.
If not, the call went to the company's in-house telephone switching system, or PBX (private branch exchange).
如果没有，电话就转到公司内的电话交换系统（即PBX，用户电话交换机）。
10.
DEX (Dendenkosha Electronic Exchange)
电信电话公司电子交换器
11.
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？
12.
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）
13.
But also needed is interoperability with the existing voice and video infrastructures: public switched networks, PBSs and video conferencing systems.
但也需要与现有话音和视频基础设施（公共交换网、用户交换机和视频会议系统）的互操作性。
14.
The transmission performance objectives for public analogue toll telephone automatic switching network
GB/T7437-1987公用模拟长途电话自动交换网传输性能指标
15.
The transmission performance objectives for mixed analogue-digital public telephone automatic switching network
GB/T14133-1993数模混合公用电话自动交换网传输性能指标
16.
By the end of 2001, total capacity of public network exchanges for fixed telephones reached 7.25 million gates,up by 19.4 percent over the previous year;
年末全市公众网固定电话交换机容量达725万门，比上年增长19.4%；
17.
The process of setting up a data transfer on a PSTN line.
在公用电话交换网（PSTN）线路上建立数据传输的过程。
18.
Ringing and tone for telephone automatic switching network
GB3380-1982电话自动交换网铃流和信号音