diff --git a/Classes/LinphoneAppDelegate.m b/Classes/LinphoneAppDelegate.m
index 08ab9de54..eaaa51ece 100644
--- a/Classes/LinphoneAppDelegate.m
+++ b/Classes/LinphoneAppDelegate.m
@@ -119,7 +119,8 @@ int __aeabi_idiv(int a, int b) {
 #endif
 #ifdef HAVE_G729                                 
                                  @"YES",@"g729_preference", // enable amr by default if compiled with
-#endif                                 @"NO",@"debugenable_preference",
+#endif                                 
+                                 @"NO",@"debugenable_preference",
 								 //@"+33",@"countrycode_preference",
                                  nil];
     
@@ -181,16 +182,6 @@ int __aeabi_idiv(int a, int b) {
 
 	[[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeSound];
 
-    UIDevice* device = [UIDevice currentDevice];
-    BOOL backgroundSupported = false;
-    if ([device respondsToSelector:@selector(isMultitaskingSupported)]){
-        backgroundSupported = device.multitaskingSupported;
-    }
-    if(backgroundSupported){
-        [[LinphoneManager instance] kickOffBackgroundTCPConnection];
-        NSLog(@"We are using my method");
-    }
-
 	CTCallCenter* ct = [[CTCallCenter alloc] init];
     ct.callEventHandler = ^(CTCall* call) {
         @synchronized([LinphoneManager instance]) {
diff --git a/Classes/LinphoneUI/LinphoneManager.m b/Classes/LinphoneUI/LinphoneManager.m
index 295aa96c0..c4d073c6a 100644
--- a/Classes/LinphoneUI/LinphoneManager.m
+++ b/Classes/LinphoneUI/LinphoneManager.m
@@ -362,6 +362,7 @@ static void linphone_iphone_call_state(LinphoneCore *lc, LinphoneCall* call, Lin
 												  cancelButtonTitle:NSLocalizedString(@"Continue",nil) 
 												  otherButtonTitles:nil ,nil];
                 [error show];
+                [error release];
             }
 		}
 		
diff --git a/Classes/LinphoneUI/UICallButton.m b/Classes/LinphoneUI/UICallButton.m
index 8ab033b6d..9b1fbf68d 100644
--- a/Classes/LinphoneUI/UICallButton.m
+++ b/Classes/LinphoneUI/UICallButton.m
@@ -45,8 +45,10 @@
 											  otherButtonTitles:nil];
 		[error show];
         [error release];
+        [ct release];
 		return;
     }
+    [ct release];
     
 	if (TRUE /*!linphone_core_in_call([LinphoneManager getLc])*/) {
 		LinphoneProxyConfig* proxyCfg;