diff --git a/app/build.gradle b/app/build.gradle
index 731c1d82b..8599545bc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -168,8 +168,8 @@ dependencies {
     implementation 'androidx.media:media:1.2.0'
     implementation 'androidx.fragment:fragment-ktx:1.2.5'
     implementation 'androidx.core:core-ktx:1.3.2'
-    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.1'
-    implementation 'androidx.navigation:navigation-ui-ktx:2.3.1'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.2'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.3.2'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0'
diff --git a/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt b/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt
index 15acd0b31..8c7346053 100644
--- a/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt
+++ b/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt
@@ -52,12 +52,9 @@ class Api26Compatibility {
         fun createServiceChannel(context: Context, notificationManager: NotificationManagerCompat) {
             // Create service notification channel
             val id = context.getString(R.string.notification_channel_service_id)
-            val name: CharSequence =
-                context.getString(R.string.notification_channel_service_name)
-            val description =
-                context.getString(R.string.notification_channel_service_name)
-            val channel =
-                NotificationChannel(id, name, NotificationManager.IMPORTANCE_LOW)
+            val name = context.getString(R.string.notification_channel_service_name)
+            val description = context.getString(R.string.notification_channel_service_name)
+            val channel = NotificationChannel(id, name, NotificationManager.IMPORTANCE_LOW)
             channel.description = description
             channel.enableVibration(false)
             channel.enableLights(false)
@@ -65,18 +62,31 @@ class Api26Compatibility {
             notificationManager.createNotificationChannel(channel)
         }
 
+        fun createMissedCallChannel(
+            context: Context,
+            notificationManager: NotificationManagerCompat
+        ) {
+            val id = context.getString(R.string.notification_channel_missed_call_id)
+            val name = context.getString(R.string.notification_channel_missed_call_name)
+            val description = context.getString(R.string.notification_channel_missed_call_name)
+            val channel = NotificationChannel(id, name, NotificationManager.IMPORTANCE_LOW)
+            channel.description = description
+            channel.lightColor = context.getColor(R.color.notification_led_color)
+            channel.enableVibration(true)
+            channel.enableLights(true)
+            channel.setShowBadge(true)
+            notificationManager.createNotificationChannel(channel)
+        }
+
         fun createIncomingCallChannel(
             context: Context,
             notificationManager: NotificationManagerCompat
         ) {
             // Create incoming calls notification channel
             val id = context.getString(R.string.notification_channel_incoming_call_id)
-            val name: CharSequence =
-                context.getString(R.string.notification_channel_incoming_call_name)
-            val description =
-                context.getString(R.string.notification_channel_incoming_call_name)
-            val channel =
-                NotificationChannel(id, name, NotificationManager.IMPORTANCE_HIGH)
+            val name = context.getString(R.string.notification_channel_incoming_call_name)
+            val description = context.getString(R.string.notification_channel_incoming_call_name)
+            val channel = NotificationChannel(id, name, NotificationManager.IMPORTANCE_HIGH)
             channel.description = description
             channel.lightColor = context.getColor(R.color.notification_led_color)
             channel.enableVibration(true)
@@ -85,13 +95,15 @@ class Api26Compatibility {
             notificationManager.createNotificationChannel(channel)
         }
 
-        fun createMessageChannel(context: Context, notificationManager: NotificationManagerCompat) {
+        fun createMessageChannel(
+            context: Context,
+            notificationManager: NotificationManagerCompat
+        ) {
             // Create messages notification channel
             val id = context.getString(R.string.notification_channel_chat_id)
             val name = context.getString(R.string.notification_channel_chat_name)
             val description = context.getString(R.string.notification_channel_chat_name)
-            val channel =
-                NotificationChannel(id, name, NotificationManager.IMPORTANCE_HIGH)
+            val channel = NotificationChannel(id, name, NotificationManager.IMPORTANCE_HIGH)
             channel.description = description
             channel.lightColor = context.getColor(R.color.notification_led_color)
             channel.enableLights(true)
diff --git a/app/src/main/java/org/linphone/compatibility/Compatibility.kt b/app/src/main/java/org/linphone/compatibility/Compatibility.kt
index cf83f6ac8..38d464255 100644
--- a/app/src/main/java/org/linphone/compatibility/Compatibility.kt
+++ b/app/src/main/java/org/linphone/compatibility/Compatibility.kt
@@ -80,6 +80,7 @@ class Compatibility {
         ) {
             if (Version.sdkAboveOrEqual(Version.API26_O_80)) {
                 Api26Compatibility.createServiceChannel(context, notificationManager)
+                Api26Compatibility.createMissedCallChannel(context, notificationManager)
                 Api26Compatibility.createIncomingCallChannel(context, notificationManager)
                 Api26Compatibility.createMessageChannel(context, notificationManager)
             }
diff --git a/app/src/main/java/org/linphone/notifications/NotificationsManager.kt b/app/src/main/java/org/linphone/notifications/NotificationsManager.kt
index 68acc8fb1..754a31676 100644
--- a/app/src/main/java/org/linphone/notifications/NotificationsManager.kt
+++ b/app/src/main/java/org/linphone/notifications/NotificationsManager.kt
@@ -320,7 +320,7 @@ class NotificationsManager(private val context: Context) {
             .setContentText(if (useAutoStartDescription) context.getString(R.string.service_auto_start_description) else context.getString(R.string.service_description))
             .setSmallIcon(R.drawable.topbar_service_notification)
             .setContentIntent(pendingIntent)
-            .setCategory(Notification.CATEGORY_SERVICE)
+            .setCategory(NotificationCompat.CATEGORY_SERVICE)
             .setVisibility(NotificationCompat.VISIBILITY_SECRET)
             .setWhen(System.currentTimeMillis())
             .setShowWhen(true)
@@ -419,13 +419,13 @@ class NotificationsManager(private val context: Context) {
             .createPendingIntent()
 
         val notification = NotificationCompat.Builder(
-            context, context.getString(R.string.notification_channel_incoming_call_id))
+            context, context.getString(R.string.notification_channel_missed_call_id))
             .setContentTitle(context.getString(R.string.missed_call_notification_title))
             .setContentText(body)
             .setSmallIcon(R.drawable.topbar_missed_call_notification)
             .setAutoCancel(true)
             .setContentIntent(pendingIntent)
-            .setCategory(Notification.CATEGORY_EVENT)
+            // .setCategory(NotificationCompat.CATEGORY_EVENT) No one really matches "missed call"
             .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)
             .setWhen(System.currentTimeMillis())
             .setShowWhen(true)
@@ -488,7 +488,7 @@ class NotificationsManager(private val context: Context) {
             .setLargeIcon(roundPicture)
             .setAutoCancel(false)
             .setContentIntent(pendingIntent)
-            .setCategory(Notification.CATEGORY_CALL)
+            .setCategory(NotificationCompat.CATEGORY_CALL)
             .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
             .setPriority(NotificationCompat.PRIORITY_LOW)
             .setWhen(System.currentTimeMillis())
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index be84f0474..61ea700f7 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -542,9 +542,11 @@
 
     <!-- Notifications -->
     <string name="notification_channel_service_id" translatable="false">linphone_notification_service_id</string>
+    <string name="notification_channel_missed_call_id" translatable="false">linphone_notification_missed_call_id</string>
     <string name="notification_channel_incoming_call_id" translatable="false">linphone_notification_call_id</string>
     <string name="notification_channel_chat_id" translatable="false">linphone_notification_chat_id</string>
     <string name="notification_channel_service_name">&appName; service notification</string>
+    <string name="notification_channel_missed_call_name">&appName; missed calls notifications</string>
     <string name="notification_channel_incoming_call_name">&appName; incoming calls notifications</string>
     <string name="notification_channel_chat_name">&appName; instant messages notifications</string>
     <string name="incoming_call_notification_title">Call incoming</string>
diff --git a/build.gradle b/build.gradle
index 5686a006c..93040a295 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.4.20'
+    ext.kotlin_version = '1.4.21'
 
     repositories {
         google()