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en:faq:how_to_choose_dtmf_mode [2014/05/05 02:03] solo [Set DTMF] |
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 ===== | |
| - | ===== dtmf在系统中的作用 ===== | + | Without correct DTMF, a IVR could not understand what's customer input. |
| - | 通俗的讲，系统会将用户输入转换成dtmf信号发送出去，当dtmf出现问题时，往往一般表现为用户无法通过按键在语音菜单(IVR)中做出选择。 | + | |
| ===== Set DTMF ===== | ===== Set DTMF ===== | ||
| Usually we just need to make sure it's using correct dtmfmode in the trunk. The option is | Usually we just need to make sure it's using correct dtmfmode in the trunk. The option is | ||
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| </code> | </code> | ||
| - | {{:en:faq:dtmfmode.png?300|}} | + | {{:en:faq:dtmfmode.png?768|}} |
| <note tip>In the default template, astercc is using rfc2833</note> | <note tip>In the default template, astercc is using rfc2833</note> | ||
