The DTMF generators and detectors are provided so that commonly encountered tones can be<br />reproduced naturally at the other end of a Vocoded link, rather than being interpreted as a form of speech.<br />They should not be relied upon to provide an error free method of relaying tone signalling to other<br />decoders, such as a telephone exchange DTMF detector, for example.<br /><br /><br />通过双音多频收发器, 通常情况下可能出现的异常音调, 可以在声音传输通道的另一端自然再生, 而不会把这种异常音调当作话音. 向其他解码装置(比如电话交换双音多频检测器)传送音调信号的无损传输方法,是不能依靠它们来提供的.<br /><br /><br />
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