touch-tone signalling 按键式信号发送
signalling tone 信令音
signalling tone peak frequency deviation 信令音峰值频偏
multi-tone sound signalling device 复音声响讯号装置
signalling tone or tones 音频或多音频控制信令
tone sound signalling device 复音声响讯号装置
They should not be relied upon to provide an error free method of relaying tone signalling to other decoders, such as a telephone exchange DTMF detector, for example.
它不应该被依赖用做提供一种无错的传送方法，传送双音频信号到另一解码器。例如：电话交换机的DTMF侦察器。
The CQP7000 supported a wide range of tone signalling standards, channel scanning and user programmable memory features, enhanced by the eight character alphanumeric display.
该CQP 7000支持标准的信号音广泛，频道扫描和用户可编程存储器的功能，由8个字符的字母数字显示增强。
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