AudioManager audioTrack=(AudioManager) MainActivity.this.getSystemService(Context.AUDIO_SERVICE);
audioTrack.setMode(AudioManager.MODE_IN_CALL);
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"></uses-permission>
AudioManager audioTrack=(AudioManager) MainActivity.this.getSystemService(Context.AUDIO_SERVICE);
audioTrack.setMode(AudioManager.MODE_IN_CALL);
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"></uses-permission>
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