diff --git a/Classes/BuschJaegerCallView.m b/Classes/BuschJaegerCallView.m
index b460a8cc6..a95e0599f 100644
--- a/Classes/BuschJaegerCallView.m
+++ b/Classes/BuschJaegerCallView.m
@@ -121,7 +121,7 @@
     User *usr = [[[LinphoneManager instance] configuration] getCurrentUser];
     /* init gradients for openDoorButton*/
     {
-        bool enabled = (usr != nil && usr.opendoor);
+        bool enabled = (usr != nil && usr.opendoor && ![[NSUserDefaults standardUserDefaults] boolForKey:@"lockdoors_preference"]);
         UIColor* col1 = (enabled)?BUSCHJAEGER_NORMAL_COLOR:BUSCHJAEGER_GRAY_COLOR;
         UIColor* col2 = (enabled)?BUSCHJAEGER_NORMAL_COLOR2:BUSCHJAEGER_GRAY_COLOR2;
         
diff --git a/Classes/LinphoneAppDelegate.m b/Classes/LinphoneAppDelegate.m
index ee0bfaac2..1b51761d1 100644
--- a/Classes/LinphoneAppDelegate.m
+++ b/Classes/LinphoneAppDelegate.m
@@ -174,6 +174,7 @@
                                  @"YES", @"outbound_proxy_preference",
                                  @"ringtone_01_1600", @"ringtone_preference",
                                  @"ringtone_01_1600", @"level_ringtone_preference",
+                                 @"NO", @"lockdoors_preference",
                                  nil];
     
     [defaultsToRegister addEntriesFromDictionary:appDefaults];
diff --git a/Settings.bundle/Root.plist b/Settings.bundle/Root.plist
index 4bf2d403a..916d77c87 100644
--- a/Settings.bundle/Root.plist
+++ b/Settings.bundle/Root.plist
@@ -87,8 +87,6 @@
 			<string>Sounds</string>
 			<key>Type</key>
 			<string>PSGroupSpecifier</string>
-			<key>FooterText</key>
-			<string>Welcome must be restarted for changes to take effect</string>
 		</dict>
 		<dict>
 			<key>DefaultValue</key>
@@ -142,6 +140,34 @@
 				<string>ringtone_05_1600</string>
 			</array>
 		</dict>
+		<dict>
+			<key>Title</key>
+			<string>Advanced</string>
+			<key>Type</key>
+			<string>PSGroupSpecifier</string>
+			<key>FooterText</key>
+			<string>Welcome must be restarted for changes to take effect</string>
+		</dict>
+		<dict>
+			<key>DefaultValue</key>
+			<false/>
+			<key>Key</key>
+			<string>lockdoors_preference</string>
+			<key>Title</key>
+			<string>Lock doors</string>
+			<key>Type</key>
+			<string>PSToggleSwitchSpecifier</string>
+		</dict>
+		<dict>
+			<key>DefaultValue</key>
+			<true/>
+			<key>Key</key>
+			<string>backgroundmode_preference</string>
+			<key>Title</key>
+			<string>Background mode</string>
+			<key>Type</key>
+			<string>PSToggleSwitchSpecifier</string>
+		</dict>
 	</array>
 	<key>StringsTable</key>
 	<string>Root</string>