diff --git a/app/build.gradle b/app/build.gradle
index a11e91a2b..4d5a00168 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -107,6 +107,8 @@ dependencies {
     annotationProcessor 'com.github.bumptech.glide:compiler:4.2.0'
     compile 'com.github.bumptech.glide:okhttp3-integration:4.2.0@aar'
 
+    implementation 'org.webrtc:google-webrtc:1.0.+'
+
     testImplementation 'junit:junit:4.12'
     androidTestImplementation ('com.android.support.test.espresso:espresso-core:3.0.1', {
         exclude group: 'com.android.support', module: 'support-annotations'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index fe78fa4c9..a3003fc52 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,19 +1,28 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          xmlns:tools="http://schemas.android.com/tools"
           package="com.nextcloud.talk">
 
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-feature android:name="android.hardware.camera"/>
+    <uses-feature android:name="android.hardware.camera.autofocus"/>
+    <uses-feature
+        android:glEsVersion="0x00020000"
+        android:required="true"/>
+
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 
     <application
         android:name=".application.NextcloudTalkApplication"
         android:allowBackup="true"
+        android:fullBackupContent="@xml/backup_config"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/nc_app_name"
+        android:networkSecurityConfig="@xml/network_security_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:networkSecurityConfig="@xml/network_security_config"
         android:theme="@style/AppTheme">
 
         <activity
diff --git a/app/src/main/res/xml/backup_config.xml b/app/src/main/res/xml/backup_config.xml
new file mode 100644
index 000000000..f2de38318
--- /dev/null
+++ b/app/src/main/res/xml/backup_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Nextcloud Talk application
+  ~
+  ~ @author Mario Danic
+  ~ Copyright (C) 2017 Mario Danic
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<full-backup-content>
+    <!-- Exclude specific shared preferences that contain GCM registration Id -->
+</full-backup-content>