The design methods given here have been successfully implemented in a Chinese-developed SPC digital telephone switching system.

本文所讨论的设计方法已成功地应用于国产程控数字电话交换机。

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The development trends of integrated circuits used in SPC telephone switching systems, system architecture, features and requirements of the switching systems are discussed.

本文对程控数字电话交换机所用的集成电路器件，交换机的系统结构以及性能要求的发展趋势进行了讨论。

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Some systems, like the telephone system, use a network of cables, wires, and switching stations for point-to-point communication.

有些系统，如电话系统，使用由电缆、导线和交换台组成的网络，来进行点对点的通信。

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Huawei also earned headlines for its activities in Afghanistan where it helped the Taliban regime create a telephone switching system in Kabul that the Indian government identified as communications surveillance equipment.

CENTERFORSECURITYPOLICY: Center For Security Policy

Under the proposed transaction, the Soviet Union will procure outright sufficient System 12 machinery to handle the switching requirements of 250, 000 telephone lines.

CENTERFORSECURITYPOLICY: Center for Security Policy | Alcatel��s Soviet Joint Venture: A Sale The West Cannot Afford To Make