diff --git a/Classes/LinphoneAppDelegate.m b/Classes/LinphoneAppDelegate.m
index 60b6a3983..fdbdc782a 100644
--- a/Classes/LinphoneAppDelegate.m
+++ b/Classes/LinphoneAppDelegate.m
@@ -43,7 +43,38 @@
 	[[LinphoneManager instance] becomeActive];
 }
 
+- (void)registerDefaultsFromSettingsBundle {
+	// source: http://stackoverflow.com/questions/510216/
+    NSString *settingsBundle = [[NSBundle mainBundle] pathForResource:@"Settings" ofType:@"bundle"];
+    if(!settingsBundle) {
+        NSLog(@"Could not find Settings.bundle");
+        return;
+    }
+
+    NSDictionary *settings = [NSDictionary dictionaryWithContentsOfFile:[settingsBundle stringByAppendingPathComponent:@"Root.plist"]];
+    NSArray *preferences = [settings objectForKey:@"PreferenceSpecifiers"];
+
+    NSMutableDictionary *defaultsToRegister = [[NSMutableDictionary alloc] initWithCapacity:[preferences count]];
+    for(NSDictionary *prefSpecification in preferences) {
+        NSString *key = [prefSpecification objectForKey:@"Key"];
+        if(key) {
+            [defaultsToRegister setObject:[prefSpecification objectForKey:@"DefaultValue"] forKey:key];
+        }
+    }
+
+    [[NSUserDefaults standardUserDefaults] registerDefaults:defaultsToRegister];
+    [defaultsToRegister release];
+}
+
 - (void) loadDefaultSettings {
+
+		// if this is the first launch after installing, we would like to load default settings values from Settings.bundle
+		NSObject *somePrefVal = [[NSUserDefaults standardUserDefaults] objectForKey:@"debugenable_preference"];
+		if(!somePrefVal) {
+			// has no value, so defaults have not been loaded yet
+			[self registerDefaultsFromSettingsBundle];
+		}
+
 		NSDictionary *appDefaults = [NSDictionary dictionaryWithObjectsAndKeys:
 									 @"NO", @"enable_first_login_view_preference", //
 									 nil];
diff --git a/submodules/build/builder-iphone-os.mk b/submodules/build/builder-iphone-os.mk
index 380d77b67..fa1d94d6f 100644
--- a/submodules/build/builder-iphone-os.mk
+++ b/submodules/build/builder-iphone-os.mk
@@ -193,7 +193,7 @@ build-libgsm:
 	cd $(BUILDER_BUILD_DIR)/$(gsm_dir)\
 	&& mkdir -p $(prefix)/include/gsm \
 	&& host_alias=$(host)  . $(BUILDER_SRC_DIR)/build/$(config_site) \
-	&&  make CC="$${CC}" INSTALL_ROOT=$(prefix)  GSM_INSTALL_INC=$(prefix)/include/gsm  install
+	&&  make -j1 CC="$${CC}" INSTALL_ROOT=$(prefix)  GSM_INSTALL_INC=$(prefix)/include/gsm  install
 
 clean-libgsm:
 	cd $(BUILDER_BUILD_DIR)/$(gsm_dir)\
diff --git a/submodules/tunnel b/submodules/tunnel
index c17f2142d..35e72d0c3 160000
--- a/submodules/tunnel
+++ b/submodules/tunnel
@@ -1 +1 @@
-Subproject commit c17f2142dadfba0f7f0bc5a92c680c845b56686a
+Subproject commit 35e72d0c3a383da8865fbf37e5e13b6cfd9483fd