The DTMF generators and detectors are provided so that commonly encountered tones can be reproduced naturally at the other end of a Vocoded link, rather than being interpreted as a form of speech.

• DTMF产生器与侦测器是被提供了，因此一般遇到的双音频能在另一端连接的声音编码器自然地重新产生，而不会作为语音格式解释。