Is it possible to send dtmf from iPhone application in background state after connec开发者_JS百科ting the call?
I don't want to use pause and wait. I tried to find from CoreTelephony.framework but didn't find anything like this.
No, apps can't interact with phone calls.
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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