1.
Exploration of Basic Architectures of the Course in "Program Control Digital Switch Technology";
探索“程控数字交换技术”课程的基本结构
2.
Realization of Call Restricting of S1240 SPC Digital Exchanger
S1240程控数字交换机呼叫限制功能的实现
3.
Regulation for construction of railway SPC digital telephone switching engineering
铁路数字程控交换通信工程施工规范
4.
Technical code for SPC digital telephone switching engineering design of railway
铁路时分数字程控交换设备技术规范
5.
SPC digital toll exchange
程控数字长途电话交换机
6.
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
7.
Standard for quality inspection and assessment of railway digital telephone switching engineering
铁路数字程控交换通信工程质量评定验收标准
8.
Technical requirements of digital SPC automatic telephone exchange
GB/T15542-1993数字程控自动电话交换机技术要求
9.
Multimedia Communications in Digital SPC Exchanges and Private Networks
数字程控交换机与专网中的多媒体通信
10.
Design of the Small Digital Program Controlled Exchange Used in Electric Power Communication;
电力通信用小型数字程控交换机的设计
11.
Research and Realization of Shipborne Digital Programme-controlled Telephone Switching Board Based on the CAN Bus
基于CAN总线船用数字程控交换机的实现研究
12.
Temporary regulation for test of anti-seismic performances of digital program control switching equipment
数字程控电话交换设备抗地震性能检测暂行规定
13.
SPC exchanges have accounted for 99.8% of the country central office telephone exchanges and 99.6% of long distance transmission has been digitized.
全国局用交换机程控化比重达到99.8%，长途传输数字化比重达到99.6%；
14.
Generic specification for stored program control digital private automatic branch telephone exchange system
GB/T14381-1993程控数字用户自动电话交换机通用技术条件
15.
Research of Switching Control Based on Non-compressed Digital Video Monitoring System;
非压缩数字视频监控系统的交换控制研究
16.
Committee on Exchange of Digital Data
数字数据交换委员会
17.
packet switched digital data network
分组交换数字数据网
18.
Softswitch Based Design of Call Control Unit in Digital Trunking System;
基于软交换的数字集群呼叫控制单元的设计