diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/CallActivity.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/CallActivity.kt
index ee962096..7aa6834c 100644
--- a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/CallActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/CallActivity.kt
@@ -158,6 +158,7 @@ class CallActivity : SimpleActivity() {
 
         val newRoute = if (isSpeakerOn) CallAudioState.ROUTE_SPEAKER else CallAudioState.ROUTE_EARPIECE
         CallManager.inCallService?.setAudioRoute(newRoute)
+        call_toggle_speaker.contentDescription = getString(if (isSpeakerOn) R.string.turn_speaker_off else R.string.turn_speaker_on)
     }
 
     private fun toggleMicrophone() {
@@ -166,6 +167,7 @@ class CallActivity : SimpleActivity() {
         call_toggle_microphone.setImageDrawable(getDrawable(drawable))
         audioManager.isMicrophoneMute = !isMicrophoneOn
         CallManager.inCallService?.setMuted(!isMicrophoneOn)
+        call_toggle_microphone.contentDescription = getString(if (isMicrophoneOn) R.string.turn_microphone_off else R.string.turn_microphone_on)
     }
 
     private fun toggleDialpadVisibility() {
diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt
index 3da82ddf..3895adb8 100644
--- a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt
@@ -299,6 +299,7 @@ class MainActivity : SimpleActivity() {
                 skippedTabs++
             } else {
                 val tab = main_tabs_holder.newTab().setIcon(getTabIcon(index))
+                tab.contentDescription = getTabContentDescription(index)
                 val wasAlreadySelected = selectedTabIndex > -1 && selectedTabIndex == index - skippedTabs
                 val shouldSelect = !isAnySelected && wasAlreadySelected
                 if (shouldSelect) {
@@ -324,6 +325,16 @@ class MainActivity : SimpleActivity() {
         return resources.getColoredDrawableWithColor(drawableId, config.textColor)
     }
 
+    private fun getTabContentDescription(position: Int): String {
+        val stringId = when (position) {
+            0 -> R.string.contacts_tab
+            1 -> R.string.favorites_tab
+            else -> R.string.call_history_tab
+        }
+
+        return resources.getString(stringId)
+    }
+
     private fun refreshItems(openLastTab: Boolean = false) {
         if (isDestroyed || isFinishing) {
             return
diff --git a/app/src/main/res/layout/activity_call.xml b/app/src/main/res/layout/activity_call.xml
index 38164332..94ed695f 100644
--- a/app/src/main/res/layout/activity_call.xml
+++ b/app/src/main/res/layout/activity_call.xml
@@ -126,6 +126,7 @@
             android:layout_width="@dimen/dialpad_button_size"
             android:layout_height="@dimen/dialpad_button_size"
             android:background="?attr/selectableItemBackgroundBorderless"
+            android:contentDescription="@string/show_dialpad"
             android:padding="@dimen/medium_margin"
             android:src="@drawable/ic_dialpad_vector"
             app:layout_constraintBottom_toBottomOf="parent"
@@ -139,7 +140,7 @@
             android:id="@+id/call_end"
             android:layout_width="@dimen/dialpad_button_size"
             android:layout_height="@dimen/dialpad_button_size"
-            android:contentDescription="@string/decline"
+            android:contentDescription="@string/end_call"
             android:src="@drawable/ic_call_decline"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
@@ -159,7 +160,7 @@
             android:id="@+id/call_decline"
             android:layout_width="@dimen/incoming_call_button_size"
             android:layout_height="@dimen/incoming_call_button_size"
-            android:contentDescription="@string/decline"
+            android:contentDescription="@string/decline_call"
             android:src="@drawable/ic_call_decline"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
@@ -183,7 +184,7 @@
             android:id="@+id/call_accept"
             android:layout_width="@dimen/incoming_call_button_size"
             android:layout_height="@dimen/incoming_call_button_size"
-            android:contentDescription="@string/accept"
+            android:contentDescription="@string/accept_call"
             android:src="@drawable/ic_call_accept"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
@@ -241,6 +242,7 @@
                 android:layout_centerVertical="true"
                 android:layout_marginEnd="@dimen/activity_margin"
                 android:background="?attr/selectableItemBackgroundBorderless"
+                android:contentDescription="@string/hide_dialpad"
                 android:padding="@dimen/medium_margin"
                 android:src="@drawable/ic_cross_vector" />
         </RelativeLayout>
diff --git a/app/src/main/res/layout/activity_dialpad.xml b/app/src/main/res/layout/activity_dialpad.xml
index d3e8d12c..2a2b3a3a 100644
--- a/app/src/main/res/layout/activity_dialpad.xml
+++ b/app/src/main/res/layout/activity_dialpad.xml
@@ -99,6 +99,7 @@
         android:layout_height="@dimen/dialpad_button_size"
         android:layout_marginBottom="@dimen/activity_margin"
         android:background="@drawable/circle_background"
+        android:contentDescription="@string/call_number"
         android:elevation="@dimen/medium_margin"
         android:padding="@dimen/normal_margin"
         android:src="@drawable/ic_phone_vector"
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index a003bfc1..09d93b84 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -28,6 +28,7 @@
         android:layout_centerHorizontal="true"
         android:layout_marginBottom="@dimen/activity_margin"
         android:background="@drawable/circle_background"
+        android:contentDescription="@string/dialpad"
         android:elevation="@dimen/medium_margin"
         android:padding="@dimen/activity_margin"
         android:src="@drawable/ic_dialpad_vector" />
diff --git a/app/src/main/res/layout/dialpad.xml b/app/src/main/res/layout/dialpad.xml
index 08b9c463..15a81bd5 100644
--- a/app/src/main/res/layout/dialpad.xml
+++ b/app/src/main/res/layout/dialpad.xml
@@ -16,6 +16,7 @@
         android:layout_height="0dp"
         android:layout_marginStart="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/one"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_2_holder"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_2_holder"
         app:layout_constraintStart_toStartOf="parent"
@@ -37,6 +38,7 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="@dimen/medium_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/two"
         app:layout_constraintBottom_toTopOf="@+id/dialpad_5_holder"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_3_holder"
         app:layout_constraintStart_toEndOf="@+id/dialpad_1_holder">
@@ -67,6 +69,7 @@
         android:layout_height="0dp"
         android:layout_marginEnd="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/three"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_2_holder"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@+id/dialpad_2_holder"
@@ -98,6 +101,7 @@
         android:layout_height="0dp"
         android:layout_marginStart="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/four"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_5_holder"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_5_holder"
         app:layout_constraintStart_toStartOf="parent"
@@ -129,6 +133,7 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="@dimen/medium_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/five"
         app:layout_constraintBottom_toTopOf="@+id/dialpad_8_holder"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_6_holder"
         app:layout_constraintStart_toEndOf="@+id/dialpad_4_holder">
@@ -159,6 +164,7 @@
         android:layout_height="0dp"
         android:layout_marginEnd="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/six"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_5_holder"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@+id/dialpad_5_holder"
@@ -190,6 +196,7 @@
         android:layout_height="0dp"
         android:layout_marginStart="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/seven"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_8_holder"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_8_holder"
         app:layout_constraintStart_toStartOf="parent"
@@ -221,6 +228,7 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="@dimen/medium_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/eight"
         app:layout_constraintBottom_toTopOf="@+id/dialpad_0_holder"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_9_holder"
         app:layout_constraintStart_toEndOf="@+id/dialpad_7_holder">
@@ -251,6 +259,7 @@
         android:layout_height="0dp"
         android:layout_marginEnd="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/nine"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_8_holder"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@+id/dialpad_8_holder"
@@ -282,6 +291,7 @@
         android:layout_height="0dp"
         android:layout_marginStart="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/asterisk"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_0_holder"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_0_holder"
         app:layout_constraintStart_toStartOf="parent"
@@ -303,6 +313,7 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/zero"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toStartOf="@+id/dialpad_hashtag_holder"
         app:layout_constraintStart_toEndOf="@+id/dialpad_asterisk_holder">
@@ -337,6 +348,7 @@
         android:layout_height="0dp"
         android:layout_marginEnd="@dimen/activity_margin"
         android:background="?attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@string/hashtag"
         app:layout_constraintBottom_toBottomOf="@+id/dialpad_0_holder"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@+id/dialpad_0_holder"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 99c41a65..d2b08bb4 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -22,7 +22,6 @@
     <string name="asterisk">Asterisk</string>
     <string name="hashtag">Hashtag</string>
     <string name="call_number">Call number</string>
-    <string name="call_number">Call number</string>
 
     <!-- Dialer -->
     <string name="dialer">Dialer</string>