Designing for Digital Phone System Based on the Laser Communication;
基于激光通信的数字电话系统设计
To call long distance, dial 1, the area code, and then the seven-digit number.
要打长途电话，先按1号，再按区号，然后是7位数字电话号码。
The Design and Development of Digital Telephony Terminal System Based on DSP;
基于DSP的数字电话终端系统设计与开发
digital carrier telephone terminal machine
数字载波电话终端机
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
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。
At the telephone company end, ISDN lines connect to a digital switch.
在电话局一端，ISDN线连到数字交换机。
SPC digital toll exchange
程控数字长途电话交换机
Time Division Multiple Access: a digital wireless telephony transmission technique.
时分多址：一种数字无线电话传输技术。
Research and Realization on Digital Multi-function Telephone Recording System;
数字多功能电话录音系统研究与实现
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
Design of Digital Video Telephone System Based on DSP
基于DSP的数字可视电话系统设计
You have entered invalid characters in the phone number. Please use only numbers.
在电话号码中您输入了无效字符。请只使用数字。
Valid phone number could contain only digits and +-/ (). Valid extension could contain only digits.
有效的电话号码仅可以包含数字和 +-/ ()。有效的分机号码只能包含数字。
Code for design of railway SPC digital switching engineering
铁路时分数字程控电话交换工程设计规范
a disc on a telephone that is rotated a fixed distance for each number called.
在电话上为每一个数字旋转固定的距离的圆盘。
Device for the transmission and reproduction of documents by digitized signals sent over telephone lines.
用电话线传送数字讯号并再现文件的装置。
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。
