diff --git a/app/build.gradle b/app/build.gradle
index fa341d70..9f791167 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -57,7 +57,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:5.27.0'
+    implementation 'com.simplemobiletools:commons:5.27.1'
     implementation 'joda-time:joda-time:2.10.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta4'
     implementation 'com.googlecode.ez-vcard:ez-vcard:0.10.5'
diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/activities/CallActivity.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/activities/CallActivity.kt
index 8cb146ea..0ed6b7e1 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/pro/activities/CallActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/pro/activities/CallActivity.kt
@@ -1,20 +1,21 @@
 package com.simplemobiletools.contacts.pro.activities
 
 import android.annotation.SuppressLint
-import android.app.Notification
-import android.app.NotificationChannel
-import android.app.NotificationManager
-import android.app.PendingIntent
+import android.app.*
+import android.content.Context
 import android.content.Intent
 import android.graphics.*
 import android.net.Uri
+import android.os.Build
 import android.os.Bundle
 import android.provider.MediaStore
 import android.telecom.Call
 import android.util.Size
+import android.view.WindowManager
 import android.widget.RemoteViews
 import androidx.core.app.NotificationCompat
 import com.simplemobiletools.commons.extensions.*
+import com.simplemobiletools.commons.helpers.isOreoMr1Plus
 import com.simplemobiletools.commons.helpers.isOreoPlus
 import com.simplemobiletools.commons.helpers.isQPlus
 import com.simplemobiletools.contacts.pro.R
@@ -43,11 +44,12 @@ class CallActivity : SimpleActivity() {
 
         callContact = CallManager.getCallContact(applicationContext)
         callContactAvatar = getCallContactAvatar()
+        addLockScreenFlags()
         showNotification()
+        updateOtherPersonsInfo()
 
         CallManager.registerCallback(getCallCallback())
         updateCallState(CallManager.getState())
-        updateOtherPersonsInfo()
     }
 
     override fun onDestroy() {
@@ -134,6 +136,22 @@ class CallActivity : SimpleActivity() {
         }
     }
 
+    @SuppressLint("NewApi")
+    private fun addLockScreenFlags() {
+        if (isOreoMr1Plus()) {
+            setShowWhenLocked(true)
+            setTurnScreenOn(true)
+        } else {
+            window.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED or WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON)
+        }
+
+        if (isOreoPlus()) {
+            (getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager).requestDismissKeyguard(this, null)
+        } else {
+            window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD)
+        }
+    }
+
     @SuppressLint("NewApi")
     private fun showNotification() {
         val channelId = "simple_contacts_call"