数字电话网

  • 网络Digital telephone network;ISDN;IDN
数字电话网数字电话网
  1. 数字电话网的同步问题

    Synchronization in Digital Telephone Network

  2. 中国大都市公用数字移动电话网发展探讨

    The exploration on development of public digital mobile telephone network in metropolises of China

  3. ΔM与PCM兼用的数字电话模拟交换网

    A Telephone Network Consisting of △ M and PCM Hybrid Digital Carrier and Analog Switching

  4. 增量调制(ΔM)与脉码调制(PCM)兼用的数字电话模拟交换网具有灵活、经济及满意的质量等特点,适用于工业通信系统及其它类似场合。

    A telephone network consisting of both △ M and PCM digital coding channels and analog switching is advantageous in flexibility and economization , also it has satisfactory quality , so it is suitable for applications in industrial communication systems and other similar fields .