diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b14e4553..3282f915 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -14,10 +14,6 @@
         android:name="android.permission.WRITE_EXTERNAL_STORAGE"
         android:maxSdkVersion="28" />
 
-    <uses-feature
-        android:name="android.hardware.telephony"
-        android:required="false"/>
-
     <uses-permission
         android:name="android.permission.USE_FINGERPRINT"
         tools:node="remove"/>
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/extensions/Context.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/extensions/Context.kt
index adddf766..02336abc 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/extensions/Context.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/extensions/Context.kt
@@ -35,8 +35,6 @@ val Context.contactsDB: ContactsDao get() = ContactsDatabase.getInstance(applica
 
 val Context.groupsDB: GroupsDao get() = ContactsDatabase.getInstance(applicationContext).GroupsDao()
 
-val Context.audioManager: AudioManager get() = getSystemService(AUDIO_SERVICE) as AudioManager
-
 fun Context.getEmptyContact(): Contact {
     val originalContactSource = if (hasContactPermissions()) config.lastUsedContactSource else SMT_PRIVATE
     val organization = Organization("", "")
diff --git a/app/src/main/res/drawable/ic_backspace_vector.xml b/app/src/main/res/drawable/ic_backspace_vector.xml
deleted file mode 100644
index 06dbed70..00000000
--- a/app/src/main/res/drawable/ic_backspace_vector.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-  <path
-      android:fillColor="#FFFFFFFF"
-      android:pathData="M22,3L7,3c-0.69,0 -1.23,0.35 -1.59,0.88L0,12l5.41,8.11c0.36,0.53 0.9,0.89 1.59,0.89h15c1.1,0 2,-0.9 2,-2L24,5c0,-1.1 -0.9,-2 -2,-2zM19,15.59L17.59,17 14,13.41 10.41,17 9,15.59 12.59,12 9,8.41 10.41,7 14,10.59 17.59,7 19,8.41 15.41,12 19,15.59z"/>
-</vector>
diff --git a/app/src/main/res/drawable/ic_call_accept.xml b/app/src/main/res/drawable/ic_call_accept.xml
deleted file mode 100644
index 546b3ac0..00000000
--- a/app/src/main/res/drawable/ic_call_accept.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ripple xmlns:android="http://schemas.android.com/apk/res/android"
-    android:color="@color/ripple_foreground">
-    <item android:id="@+id/shortcut_dialpad_background">
-        <shape android:shape="oval">
-            <solid android:color="@color/md_green_700" />
-        </shape>
-    </item>
-
-    <item
-        android:bottom="@dimen/medium_margin"
-        android:drawable="@drawable/ic_phone_vector"
-        android:left="@dimen/medium_margin"
-        android:right="@dimen/medium_margin"
-        android:top="@dimen/medium_margin" />
-</ripple>
diff --git a/app/src/main/res/drawable/ic_call_decline.xml b/app/src/main/res/drawable/ic_call_decline.xml
deleted file mode 100644
index 5754ba70..00000000
--- a/app/src/main/res/drawable/ic_call_decline.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ripple xmlns:android="http://schemas.android.com/apk/res/android"
-    android:color="@color/ripple_foreground">
-    <item android:id="@+id/shortcut_dialpad_background">
-        <shape android:shape="oval">
-            <solid android:color="@color/md_red_700" />
-        </shape>
-    </item>
-
-    <item
-        android:bottom="@dimen/medium_margin"
-        android:drawable="@drawable/ic_phone_down_vector"
-        android:left="@dimen/medium_margin"
-        android:right="@dimen/medium_margin"
-        android:top="@dimen/medium_margin" />
-</ripple>
diff --git a/app/src/main/res/drawable/ic_microphone_off_vector.xml b/app/src/main/res/drawable/ic_microphone_off_vector.xml
deleted file mode 100644
index c05115e4..00000000
--- a/app/src/main/res/drawable/ic_microphone_off_vector.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M19,11C19,11 19.0088,9.8569 18.1571,9.8714 17.362,9.885 17.3,11 17.3,11c0,0.74 -0.16,1.43 -0.43,2.05l1.23,1.23C18.66,13.3 19,12.19 19,11ZM14.98,11.17C14.98,11.11 15,11.06 15,11L15,5C15,3.34 13.66,2 12,2 10.34,2 9,3.34 9,5L9,5.18ZM4.27,3 L3,4.27l6.01,6.01 0,0.72c0,1.66 1.33,3 2.99,3 0.22,0 0.44,-0.03 0.65,-0.08l1.66,1.66C13.6,15.91 12.81,16.1 12,16.1 9.24,16.1 6.7,14 6.7,11 6.7,11 6.6686,9.9807 5.8435,9.992 5.0185,10.0033 5,11 5,11c0,3.41 2.72,6.23 6,6.72L11,21c0,0 -0.0013,1.036 1.0127,1.0169C12.9886,21.9987 13,21 13,21l0,-3.28c0.91,-0.13 1.77,-0.45 2.54,-0.9L19.73,21 21,19.73Z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_phone_down_red_vector.xml b/app/src/main/res/drawable/ic_phone_down_red_vector.xml
deleted file mode 100644
index 763a320e..00000000
--- a/app/src/main/res/drawable/ic_phone_down_red_vector.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="@color/md_red_700"
-        android:pathData="M23.4267,12.2343C20.4492,9.413 16.4272,7.6753 11.9951,7.6753c-4.4321,0 -8.4541,1.7377 -11.4316,4.559 -0.1757,0.1757 -0.2831,0.4198 -0.2831,0.6931 0,0.2733 0.1074,0.5174 0.2831,0.6931l2.421,2.421c0.1757,0.1757 0.4198,0.2831 0.6931,0.2831 0.2636,0 0.5076,-0.1074 0.6834,-0.2733 0.7712,-0.7224 1.6498,-1.3277 2.5968,-1.806 0.3222,-0.1562 0.5467,-0.4881 0.5467,-0.8786l0,-3.0263C8.92,9.8718 10.4332,9.6278 11.9951,9.6278c1.562,0 3.0751,0.2441 4.4906,0.7029l0,3.0263c0,0.3807 0.2245,0.7224 0.5467,0.8786 0.9567,0.4783 1.8255,1.0934 2.6065,1.806 0.1757,0.1757 0.4198,0.2733 0.6834,0.2733 0.2733,0 0.5174,-0.1074 0.6931,-0.2831l2.421,-2.421c0.1757,-0.1757 0.2831,-0.4198 0.2831,-0.6931 0,-0.2733 -0.1171,-0.5076 -0.2929,-0.6834z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_phone_down_vector.xml b/app/src/main/res/drawable/ic_phone_down_vector.xml
deleted file mode 100644
index 6487b6a6..00000000
--- a/app/src/main/res/drawable/ic_phone_down_vector.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M23.4267,12.2343C20.4492,9.413 16.4272,7.6753 11.9951,7.6753c-4.4321,0 -8.4541,1.7377 -11.4316,4.559 -0.1757,0.1757 -0.2831,0.4198 -0.2831,0.6931 0,0.2733 0.1074,0.5174 0.2831,0.6931l2.421,2.421c0.1757,0.1757 0.4198,0.2831 0.6931,0.2831 0.2636,0 0.5076,-0.1074 0.6834,-0.2733 0.7712,-0.7224 1.6498,-1.3277 2.5968,-1.806 0.3222,-0.1562 0.5467,-0.4881 0.5467,-0.8786l0,-3.0263C8.92,9.8718 10.4332,9.6278 11.9951,9.6278c1.562,0 3.0751,0.2441 4.4906,0.7029l0,3.0263c0,0.3807 0.2245,0.7224 0.5467,0.8786 0.9567,0.4783 1.8255,1.0934 2.6065,1.806 0.1757,0.1757 0.4198,0.2733 0.6834,0.2733 0.2733,0 0.5174,-0.1074 0.6931,-0.2831l2.421,-2.421c0.1757,-0.1757 0.2831,-0.4198 0.2831,-0.6931 0,-0.2733 -0.1171,-0.5076 -0.2929,-0.6834z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_phone_green_vector.xml b/app/src/main/res/drawable/ic_phone_green_vector.xml
deleted file mode 100644
index 312e1562..00000000
--- a/app/src/main/res/drawable/ic_phone_green_vector.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="@color/md_green_700"
-        android:pathData="M6.62,10.79c1.44,2.83 3.76,5.14 6.59,6.59l2.2,-2.2c0.27,-0.27 0.67,-0.36 1.02,-0.24 1.12,0.37 2.33,0.57 3.57,0.57 0.55,0 1,0.45 1,1V20c0,0.55 -0.45,1 -1,1 -9.39,0 -17,-7.61 -17,-17 0,-0.55 0.45,-1 1,-1h3.5c0.55,0 1,0.45 1,1 0,1.25 0.2,2.45 0.57,3.57 0.11,0.35 0.03,0.74 -0.25,1.02l-2.2,2.2z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_speaker_off_vector.xml b/app/src/main/res/drawable/ic_speaker_off_vector.xml
deleted file mode 100644
index 17adb3f9..00000000
--- a/app/src/main/res/drawable/ic_speaker_off_vector.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M16.5,12c0,-1.77 -1.02,-3.29 -2.5,-4.03v2.21l2.45,2.45c0.03,-0.2 0.05,-0.41 0.05,-0.63zM19,12c0,0.94 -0.2,1.82 -0.54,2.64l1.51,1.51C20.63,14.91 21,13.5 21,12c0,-4.28 -2.99,-7.86 -7,-8.77v2.06c2.89,0.86 5,3.54 5,6.71zM4.27,3L3,4.27 7.73,9L3,9v6h4l5,5v-6.73l4.25,4.25c-0.67,0.52 -1.42,0.93 -2.25,1.18v2.06c1.38,-0.31 2.63,-0.95 3.69,-1.81L19.73,21 21,19.73l-9,-9L4.27,3zM12,4L9.91,6.09 12,8.18L12,4z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_speaker_on_vector.xml b/app/src/main/res/drawable/ic_speaker_on_vector.xml
deleted file mode 100644
index bc7422fc..00000000
--- a/app/src/main/res/drawable/ic_speaker_on_vector.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M3,9v6h4l5,5L12,4L7,9L3,9zM16.5,12c0,-1.77 -1.02,-3.29 -2.5,-4.03v8.05c1.48,-0.73 2.5,-2.25 2.5,-4.02zM14,3.23v2.06c2.89,0.86 5,3.54 5,6.71s-2.11,5.85 -5,6.71v2.06c4.01,-0.91 7,-4.49 7,-8.77s-2.99,-7.86 -7,-8.77z" />
-</vector>
diff --git a/app/src/main/res/drawable/ripple_background.xml b/app/src/main/res/drawable/ripple_background.xml
deleted file mode 100644
index 783c769d..00000000
--- a/app/src/main/res/drawable/ripple_background.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<ripple xmlns:android="http://schemas.android.com/apk/res/android"
-    android:color="@color/md_grey">
-    <item
-        android:id="@android:id/mask"
-        android:drawable="@android:color/white" />
-</ripple>
diff --git a/app/src/main/res/drawable/shortcut_dialpad.xml b/app/src/main/res/drawable/shortcut_dialpad.xml
deleted file mode 100644
index e92c7d47..00000000
--- a/app/src/main/res/drawable/shortcut_dialpad.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:id="@+id/shortcut_dialpad_background">
-        <shape android:shape="oval">
-            <solid android:color="@color/color_primary"/>
-        </shape>
-    </item>
-
-    <item
-        android:bottom="@dimen/medium_margin"
-        android:drawable="@drawable/ic_dialpad_vector"
-        android:left="@dimen/medium_margin"
-        android:right="@dimen/medium_margin"
-        android:top="@dimen/medium_margin"/>
-
-</layer-list>
diff --git a/app/src/main/res/menu/menu_dialpad.xml b/app/src/main/res/menu/menu_dialpad.xml
deleted file mode 100644
index a4a77b30..00000000
--- a/app/src/main/res/menu/menu_dialpad.xml
+++ /dev/null
@@ -1,9 +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/add_number_to_contact"
-        android:icon="@drawable/ic_plus_vector"
-        android:title="@string/add_number_to_contact"
-        app:showAsAction="ifRoom"/>
-</menu>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
deleted file mode 100644
index 03cc889a..00000000
--- a/app/src/main/res/values/colors.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="ripple_foreground">#33FFFFFF</color>
-</resources>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index e4a6c4ad..53ad0eaf 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -4,10 +4,4 @@
     <dimen name="contact_actions_size">48dp</dimen>
     <dimen name="contact_icons_size">40dp</dimen>
     <dimen name="dialpad_button_size">60dp</dimen>
-    <dimen name="incoming_call_button_size">72dp</dimen>
-    <dimen name="call_notification_button_size">30dp</dimen>
-
-    <dimen name="caller_name_text_size">34sp</dimen>
-    <dimen name="call_status_text_size">20sp</dimen>
-    <dimen name="dialpad_text_size">34sp</dimen>
 </resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index f9f377e2..9c3b80f3 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,19 +1,5 @@
 <resources>
 
-    <style name="AppTheme" parent="AppTheme.Base"/>
-
-    <style name="DialpadNumberStyle">
-        <item name="android:gravity">center</item>
-        <item name="android:paddingBottom">@dimen/normal_margin</item>
-        <item name="android:paddingTop">@dimen/normal_margin</item>
-        <item name="android:textSize">@dimen/dialpad_text_size</item>
-        <item name="android:background">?attr/selectableItemBackgroundBorderless</item>
-    </style>
-
-    <style name="DialpadLetterStyle">
-        <item name="android:gravity">center_horizontal</item>
-        <item name="android:textSize">@dimen/smaller_text_size</item>
-        <item name="android:alpha">0.8</item>
-    </style>
+    <style name="AppTheme" parent="AppTheme.Base" />
 
 </resources>