diff --git a/app/src/main/res/drawable-anydpi/ic_action_swap.xml b/app/src/main/res/drawable-anydpi/ic_action_swap.xml
deleted file mode 100644
index eff1e303..00000000
--- a/app/src/main/res/drawable-anydpi/ic_action_swap.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="?attr/colorControlNormal"
-    android:autoMirrored="true">
-  <path
-      android:fillColor="@android:color/white"
-      android:pathData="M21,5c-1.11,-0.35 -2.33,-0.5 -3.5,-0.5c-1.95,0 -4.05,0.4 -5.5,1.5c-1.45,-1.1 -3.55,-1.5 -5.5,-1.5S2.45,4.9 1,6v14.65c0,0.25 0.25,0.5 0.5,0.5c0.1,0 0.15,-0.05 0.25,-0.05C3.1,20.45 5.05,20 6.5,20c1.95,0 4.05,0.4 5.5,1.5c1.35,-0.85 3.8,-1.5 5.5,-1.5c1.65,0 3.35,0.3 4.75,1.05c0.1,0.05 0.15,0.05 0.25,0.05c0.25,0 0.5,-0.25 0.5,-0.5V6C22.4,5.55 21.75,5.25 21,5zM21,18.5c-1.1,-0.35 -2.3,-0.5 -3.5,-0.5c-1.7,0 -4.15,0.65 -5.5,1.5V8c1.35,-0.85 3.8,-1.5 5.5,-1.5c1.2,0 2.4,0.15 3.5,0.5V18.5z"/>
-  <path
-      android:fillColor="@android:color/white"
-      android:pathData="M17.5,10.5c0.88,0 1.73,0.09 2.5,0.26V9.24C19.21,9.09 18.36,9 17.5,9c-1.7,0 -3.24,0.29 -4.5,0.83v1.66C14.13,10.85 15.7,10.5 17.5,10.5z"/>
-  <path
-      android:fillColor="@android:color/white"
-      android:pathData="M13,12.49v1.66c1.13,-0.64 2.7,-0.99 4.5,-0.99c0.88,0 1.73,0.09 2.5,0.26V11.9c-0.79,-0.15 -1.64,-0.24 -2.5,-0.24C15.8,11.66 14.26,11.96 13,12.49z"/>
-  <path
-      android:fillColor="@android:color/white"
-      android:pathData="M17.5,14.33c-1.7,0 -3.24,0.29 -4.5,0.83v1.66c1.13,-0.64 2.7,-0.99 4.5,-0.99c0.88,0 1.73,0.09 2.5,0.26v-1.52C19.21,14.41 18.36,14.33 17.5,14.33z"/>
-</vector>
diff --git a/app/src/main/res/layout/activity_android_contacts.xml b/app/src/main/res/layout/activity_android_contacts.xml
deleted file mode 100644
index 98209afa..00000000
--- a/app/src/main/res/layout/activity_android_contacts.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/AndroidContactsView"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingBottom="@dimen/activity_vertical_margin"
-    android:paddingLeft="@dimen/activity_horizontal_margin"
-    android:paddingRight="@dimen/activity_horizontal_margin"
-    android:paddingTop="@dimen/activity_vertical_margin"
-    tools:context=".AndroidContactsActivity">
-
-    <ListView
-        android:id="@+id/androidContacts"
-        android:layout_width="fill_parent"
-        android:layout_height="match_parent"
-        android:divider="#00000000"
-        android:dividerHeight="10dp" >
-    </ListView>
-
-</RelativeLayout>
diff --git a/app/src/main/res/layout/android_contact_row.xml b/app/src/main/res/layout/android_contact_row.xml
deleted file mode 100644
index d2fa025e..00000000
--- a/app/src/main/res/layout/android_contact_row.xml
+++ /dev/null
@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/androidContactRow"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="horizontal" >
-
-    <TextView
-        android:id="@+id/TextAvatar"
-        android:layout_width="36dp"
-        android:layout_height="36dp"
-        android:scaleType="centerInside"
-        android:background="@drawable/circle"
-        android:textSize="24sp"
-        android:textAllCaps="true"
-        android:textColor="@android:color/white"
-        android:gravity="center"
-        android:visibility="gone" >
-    </TextView>
-
-    <androidx.cardview.widget.CardView
-        android:id="@+id/CardAvatar"
-        android:layout_width="36dp"
-        android:layout_height="36dp"
-        android:layout_gravity="center_vertical"
-        android:elevation="12dp"
-        app:cardCornerRadius="18dp" >
-
-        <ImageView
-            android:id="@+id/ImageAvatar"
-            android:layout_height="36dp"
-            android:layout_width="36dp"
-            android:adjustViewBounds="true"
-            android:scaleType="centerCrop"
-            android:contentDescription="@string/avatar_image">
-        </ImageView>
-
-    </androidx.cardview.widget.CardView>
-
-    <TextView
-        android:id="@+id/contactName"
-        android:layout_width="fill_parent"
-        android:layout_height="wrap_content"
-        android:layout_centerVertical="true"
-        android:layout_marginStart="41dp"
-        android:textSize="20sp"
-        android:layout_marginBottom="6dp">
-    </TextView>
-
-</RelativeLayout>
diff --git a/app/src/main/res/menu/swap_contacts_icon.xml b/app/src/main/res/menu/swap_contacts_icon.xml
deleted file mode 100644
index 66e08ffb..00000000
--- a/app/src/main/res/menu/swap_contacts_icon.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
-
-    <item
-        android:id="@+id/swapIcon"
-        android:title=""
-        app:showAsAction="always"
-        android:icon="@drawable/ic_action_swap" />
-
-</menu>
diff --git a/app/src/main/res/raw/autoanswer.wav b/app/src/main/res/raw/autoanswer.wav
deleted file mode 100644
index f8fba655..00000000
Binary files a/app/src/main/res/raw/autoanswer.wav and /dev/null differ
diff --git a/app/src/main/res/raw/error.wav b/app/src/main/res/raw/error.wav
deleted file mode 100644
index 9ebd62af..00000000
Binary files a/app/src/main/res/raw/error.wav and /dev/null differ