如何在android进行实时通话期间以编程方式发送Dtmf音调? [英] how to send Dtmf tone programmatically during a live call in android?

问题描述

我想在我的应用中以编程方式发送 DTMF 音频.在搜索时，我找到了一种方法

I Want to send DTMF Tones programmatically in my app. While searching i found a method

public void playDtmfTone (char digit)

这是Google在android中发送的新更新，以发送 DTMF 还是我们必须等待.

Is this a new update by google in android to send DTMF or still we have to wait.

http://developer.android.com/reference/android/telecom/Call.html#playDtmfTone(char)

推荐答案

有所谓的音频流，因此必须有一种在AudioManager.STREAM_VOICE_CALL或AudioManager.STREAM_DTMF上播放音调的方法.实际上，Skype会这样做.

There are the so called audio streams, and so there must be a way of playing tones over the AudioManager.STREAM_VOICE_CALL or AudioManager.STREAM_DTMF ones. Actually Skype does this.

但是您不能确定是在其他应用程序拨打的电话上播放音调.

But what you can't do for sure is to play tones over a call made from other app.

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