diff --git a/Classes/LinphoneUI/UIBluetoothButton.m b/Classes/LinphoneUI/UIBluetoothButton.m
index 539422c2c..4f3248a39 100644
--- a/Classes/LinphoneUI/UIBluetoothButton.m
+++ b/Classes/LinphoneUI/UIBluetoothButton.m
@@ -23,14 +23,14 @@
 
 @implementation UIBluetoothButton
 #define check_auresult(au,method) \
-if (au!=0) ms_error("UIBluetoothButton error for %s: ret=%i",method,au)
+if (au!=0) ms_error("UIBluetoothButton error for %s: ret=%ld",method,au)
 
 -(void) onOn {
 	//redirect audio to bluetooth
 
 	UInt32 size = sizeof(CFStringRef);
 	CFStringRef route="HeadsetBT";
-	OSStatus result = AudioSessionSetProperty(kAudioSessionProperty_AudioRoute, &size, &route);
+	OSStatus result = AudioSessionSetProperty(kAudioSessionProperty_AudioRoute, size, &route);
 	check_auresult(result,"set kAudioSessionProperty_AudioRoute HeadsetBT");
 	
 	int allowBluetoothInput = 1;
diff --git a/Classes/LinphoneUI/UISpeakerButton.m b/Classes/LinphoneUI/UISpeakerButton.m
index a513d67ce..717025e00 100644
--- a/Classes/LinphoneUI/UISpeakerButton.m
+++ b/Classes/LinphoneUI/UISpeakerButton.m
@@ -40,7 +40,7 @@ static void audioRouteChangeListenerCallback (
    AudioSessionInitialize(NULL, NULL, NULL, NULL);
    OSStatus lStatus = AudioSessionAddPropertyListener(routeChangeID, audioRouteChangeListenerCallback, self);
    if (lStatus) {
-       ms_error ("cannot register route change handler [%i]",lStatus);
+       ms_error ("cannot register route change handler [%ld]",lStatus);
    }
 }
 
diff --git a/Classes/LinphoneUI/UIToggleButton.h b/Classes/LinphoneUI/UIToggleButton.h
index bd960cee2..61ba8aba7 100644
--- a/Classes/LinphoneUI/UIToggleButton.h
+++ b/Classes/LinphoneUI/UIToggleButton.h
@@ -24,6 +24,7 @@
 	-(void) onOff;
 	-(bool) isInitialStateOn;
 @end
+
 @interface UIToggleButton : UIButton <UIToggleButtonDelegate> {
 @private
 	UIImage* mOnImage;
diff --git a/Classes/LinphoneUI/UIToggleButton.m b/Classes/LinphoneUI/UIToggleButton.m
index 0f5a81e07..5961a46c1 100644
--- a/Classes/LinphoneUI/UIToggleButton.m
+++ b/Classes/LinphoneUI/UIToggleButton.m
@@ -69,5 +69,19 @@
 	[mOffImage release];
 }
 
+-(void) onOn {
+    [NSException raise:NSInternalInconsistencyException 
+                format:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)];
+}
+-(void) onOff {
+    [NSException raise:NSInternalInconsistencyException 
+                format:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)];
+}
+-(bool) isInitialStateOn {
+    [NSException raise:NSInternalInconsistencyException 
+                format:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)];
+    return false;
+}
+
 
 @end