diff --git a/app/src/main/java/org/linphone/LinphoneManager.java b/app/src/main/java/org/linphone/LinphoneManager.java
index 0a38d1738..b1ef90828 100644
--- a/app/src/main/java/org/linphone/LinphoneManager.java
+++ b/app/src/main/java/org/linphone/LinphoneManager.java
@@ -1102,6 +1102,11 @@ public class LinphoneManager implements CoreListener, SensorEventListener, Accou
             final RegistrationState state,
             final String message) {
         Log.i("[Manager] New registration state [" + state + "]");
+
+        if (state == RegistrationState.Failed) {
+            boolean isIdle = Compatibility.isAppIdleMode(mServiceContext);
+            Log.w("[Manager] PowerManager isIdleMode returned " + isIdle);
+        }
     }
 
     public Context getContext() {
diff --git a/app/src/main/java/org/linphone/compatibility/ApiTwentyThreePlus.java b/app/src/main/java/org/linphone/compatibility/ApiTwentyThreePlus.java
index afacf3fd5..e960b810e 100644
--- a/app/src/main/java/org/linphone/compatibility/ApiTwentyThreePlus.java
+++ b/app/src/main/java/org/linphone/compatibility/ApiTwentyThreePlus.java
@@ -20,6 +20,8 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
 
 import android.annotation.TargetApi;
+import android.content.Context;
+import android.os.PowerManager;
 import android.widget.TextView;
 
 @TargetApi(23)
@@ -27,4 +29,8 @@ class ApiTwentyThreePlus {
     public static void setTextAppearance(TextView textview, int style) {
         textview.setTextAppearance(style);
     }
+
+    public static boolean isAppIdleMode(Context context) {
+        return ((PowerManager) context.getSystemService(Context.POWER_SERVICE)).isDeviceIdleMode();
+    }
 }
diff --git a/app/src/main/java/org/linphone/compatibility/Compatibility.java b/app/src/main/java/org/linphone/compatibility/Compatibility.java
index 787047dcf..170ea9195 100644
--- a/app/src/main/java/org/linphone/compatibility/Compatibility.java
+++ b/app/src/main/java/org/linphone/compatibility/Compatibility.java
@@ -203,4 +203,11 @@ public class Compatibility {
         }
         return false;
     }
+
+    public static boolean isAppIdleMode(Context context) {
+        if (Version.sdkAboveOrEqual(Version.API23_MARSHMALLOW_60)) {
+            return ApiTwentyThreePlus.isAppIdleMode(context);
+        }
+        return false;
+    }
 }