diff --git a/app/src/main/assets/assistant_linphone_default_values b/app/src/main/assets/assistant_linphone_default_values
index 06ebab856..eacc99247 100644
--- a/app/src/main/assets/assistant_linphone_default_values
+++ b/app/src/main/assets/assistant_linphone_default_values
@@ -29,7 +29,7 @@
     <entry name="protocols" overwrite="true">stun,ice</entry>
   </section>
   <section name="sip">
-    <entry name="media_encryption" overwrite="true">zrtp</entry>
+    <entry name="media_encryption" overwrite="true">srtp</entry>
     <entry name="media_encryption_mandatory">1</entry>
   </section>
 </config>
diff --git a/app/src/main/java/org/linphone/notifications/NotificationsManager.kt b/app/src/main/java/org/linphone/notifications/NotificationsManager.kt
index 3432bf952..e5012898b 100644
--- a/app/src/main/java/org/linphone/notifications/NotificationsManager.kt
+++ b/app/src/main/java/org/linphone/notifications/NotificationsManager.kt
@@ -1582,7 +1582,7 @@ class NotificationsManager
         val id = context.getString(R.string.notification_channel_call_id)
         val name = context.getString(R.string.notification_channel_call_name)
 
-        val channel = NotificationChannel(id, name, NotificationManager.IMPORTANCE_DEFAULT).apply {
+        val channel = NotificationChannel(id, name, NotificationManager.IMPORTANCE_LOW).apply {
             description = name
             lockscreenVisibility = Notification.VISIBILITY_PUBLIC
         }