... telephone communication system 电话通信系统 telephone communication unit 电话通信装置 telephone dial 电话拨号盘 ...
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无线通信装置，无绳电话，显示操作控制方法，程序及存储介质。
Radio communicator, cordless telephone, display operation control method, program and storage medium.
低成本高频装置，高频放大方法，无线通信装置和移动电话。
Low cost high-frequency device, high-frequency amplifying method, radio communication device and mobile phone.
为了使电力系统通信设备的呼叫装置更加使用方便工作可靠，我们研制了以按键电话机发出双音频呼叫信号进行选择接收的音频选号装置。
In order to improve the ringing method of telephone used in power systems, a type of selective calling device using audio frequency has been developed.
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