By synthetical digital telephone network it furnishes the sort of link from terminal to terminal,and it is a kind of communication techology of wide area network applying multi telecommunication services for undertaking sound,digit,picture,fax,and video etc.
ＩＳＤＮ技术是一种通过综合数字电话网提供端到端的数字化连接，用以承载包括话音、数据、图象、传真和视频在内的多种电信业务的广域网通信技术。
State-of-the-art advances in performance, economical pricing, local area net-works, and the benefits of digital telephone nerworks
其性能之先进、价格之便宜、局域网之便利和数字电话网之优势
The Research of Echo Cancellation Technology in Digital Network Conference Telephone;
网络数字会议电话回波抵消技术研究
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。
ISDN services include telephone, data, electronic mail, and facsimile.
综合业务数字网义务包括电话、据、子邮件和传真。
Digital Realization of Time-Revision System Based on PSTN;
基于公用电话网的时间校对系统数字化实现
The Design and Implementation of Telephone Gateway Interface in Digital Trunking System;
数字集群系统电话网关接口的设计与实现
digital carrier telephone terminal machine
数字载波电话终端机
Digital telecommunications network that operates over standard copper telephone wires or other media.
数字电信网络,在标准电话铜线或其它介质上运作。
12000 program-controlled telephones, digital transmissions and ISDN have been equipped as well as two relay towers.
开通程控电话12000门，无线电通信转播塔2座，数字传输，宽带上网。
CAS( Communication Automation System) includes cabling system, broadband netw-ork system, mobile phone coverage system, cable TV and digital communication system.
CAS 通信自动化系统，综合布线、频网路、动电话楼内覆盖系统、线电视及数字程控电话系统。
Interoffice junction digital line signalling system for telephone automatic switching network
GB3971.2-1983电话自动交换网局间中继数字型线路信号方式
Integrated Services Digital Network(ISDN) is easy to access Public Switched Telephone Network(PSTN) and has larger transmission and capacity and higher reliability.
综合业务数字网具有容易访问公用电话交换网且传输容量大、可靠性高等特性。
Demand for rich media services such as Internet access, video on demand, digital television and voice over IP grows more clamorous every day.
对丰富的媒体服务的需求，如因特网接入、视频点播、数字电视和IP电话，日日高涨。
A rotatable disk on a telephone with numbers and letters, used to signal the number to which a call is made.
拨号盘电话上带有数字和字母的转盘，用来发送号码给呼叫的电话
Application of 110 kV Digitized Power Substation in Zhejiang Power Grid
110kV数字化变电站在浙江电网的应用
A GOOSE Network Scheme for Relay Protection in Digitized Substations
数字化变电站继电保护的GOOSE网络方案
The phone number must have one or more digits in it.
电话号码应该包含一个或更多数字。
Most of telephone dials use digital numbers.
在部分电话号码盘都使用阿拉伯数字。