diff --git a/src/android/org/linphone/call/CallActivity.java b/src/android/org/linphone/call/CallActivity.java
index 41bbe4883..fba1bb537 100644
--- a/src/android/org/linphone/call/CallActivity.java
+++ b/src/android/org/linphone/call/CallActivity.java
@@ -1143,6 +1143,9 @@ public class CallActivity extends LinphoneGenericActivity implements OnClickList
 	private void showAcceptCallUpdateDialog() {
 		dialog = new Dialog(this);
 		dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
+		dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
+		dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
+		dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 		Drawable d = new ColorDrawable(ContextCompat.getColor(this, R.color.colorC));
 		d.setAlpha(200);
 		dialog.setContentView(R.layout.dialog);
diff --git a/src/android/org/linphone/fragments/StatusFragment.java b/src/android/org/linphone/fragments/StatusFragment.java
index 0d08ef11f..60c3818b3 100644
--- a/src/android/org/linphone/fragments/StatusFragment.java
+++ b/src/android/org/linphone/fragments/StatusFragment.java
@@ -402,6 +402,9 @@ public class StatusFragment extends Fragment {
 
 			ZRTPdialog = new Dialog(getActivity());
 			ZRTPdialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
+			ZRTPdialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
+			ZRTPdialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
+			ZRTPdialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 			Drawable d = new ColorDrawable(ContextCompat.getColor(getActivity(), R.color.colorC));
 			d.setAlpha(200);
 			ZRTPdialog.setContentView(R.layout.dialog);