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en:faq:how_to_choose_dtmf_mode [2014/05/05 02:11] solo [What's DTMF for] |
en:faq:how_to_choose_dtmf_mode [2017/12/12 03:05] (current) |
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| ====== How to choose dtmf mode ====== | ====== How to choose dtmf mode ====== | ||
| ===== What is DTMF ===== | ===== What is DTMF ===== | ||
| - | 双音多频 DTMF（Dual Tone Multi Frequency），双音多频，由高频群和低频群组成，高低频群各包含4个频率。一个高频信号和一个低频信号叠加组成一个组合信号，代表一个数字。DTMF信号有16个编码。利用DTMF信令可选择呼叫相应的对讲机。 | + | DTMF (dual tone multi frequency) is the signal to the phone company that you generate when you press an ordinary telephone's touch keys. |
| ===== What's DTMF for ===== | ===== What's DTMF for ===== | ||
| Without correct DTMF, a IVR could not understand what's customer input. | Without correct DTMF, a IVR could not understand what's customer input. | ||
