MRSupper_Phone/Assets/Plugins/Android/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="org.mediasoup.droid.demo" >
	<uses-permission android:name="android.permission.INTERNET" />
	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
	    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
	
	<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
  <application
  android:usesCleartextTraffic="true"
      android:hardwareAccelerated="true"
  android:label="@string/app_name"
      android:icon="@drawable/app_icon"
    android:requestLegacyExternalStorage="true" >
    android:supportsRtl="true" >
    <activity android:name="org.mediasoup.droid.demo.UnityActivity" >
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>

      <meta-data
          android:name="unityplayer.UnityActivity"
          android:value="true" />
    </activity>
  </application>

</manifest>