diff --git a/Classes/IncallViewController.m b/Classes/IncallViewController.m
index 895299e67..bd43eb27b 100644
--- a/Classes/IncallViewController.m
+++ b/Classes/IncallViewController.m
@@ -667,8 +667,8 @@ void addAnimationFadeTransition(UIView* view, float duration) {
 	dismissed = false;
 	UIDevice *device = [UIDevice currentDevice];
     device.proximityMonitoringEnabled = YES;
-	if ([speaker isOn]) 
-		[speaker toggle];
+	//if ([speaker isOn]) 
+	//	[speaker toggle];
     [self updateUIFromLinphoneState: YES]; 
 }
 
@@ -681,7 +681,7 @@ void addAnimationFadeTransition(UIView* view, float duration) {
 	UIDevice *device = [UIDevice currentDevice];
     device.proximityMonitoringEnabled = YES;
 	if (call !=nil  && linphone_call_get_dir(call)==LinphoneCallIncoming) {
-		if ([speaker isOn]) [speaker toggle];
+		//if ([speaker isOn]) [speaker toggle];
 	}
     [self updateUIFromLinphoneState: YES];
     
@@ -932,7 +932,11 @@ static void hideSpinner(LinphoneCall* call, void* user_data) {
         } else {
             switch (linphone_call_get_state(call)) {
                 case LinphoneCallPaused:
-                    [ms appendFormat:@"%@", NSLocalizedString(@"Paused (tap to resume)", nil), nil];
+                    if(!linphone_core_sound_resources_locked(linphone_call_get_core(call))) {
+                        [ms appendFormat:@"%@", NSLocalizedString(@"Paused (tap to resume)", nil), nil];
+                    } else {
+                        [ms appendFormat:@"%@", NSLocalizedString(@"Paused", nil), nil];
+                    }
                     break;
                 case LinphoneCallOutgoingInit:
                 case LinphoneCallOutgoingProgress:
@@ -1242,7 +1246,9 @@ static void hideSpinner(LinphoneCall* call, void* user_data) {
         if (linphone_core_is_in_conference(lc)) {
             linphone_core_leave_conference(lc);
         }
-        linphone_core_resume_call([LinphoneManager getLc], selectedCall);
+        if(!linphone_core_sound_resources_locked(lc)) {
+            linphone_core_resume_call([LinphoneManager getLc], selectedCall);
+        }
     }
     
     [self updateUIFromLinphoneState: YES];
diff --git a/Classes/LinphoneUI/LinphoneManager.h b/Classes/LinphoneUI/LinphoneManager.h
index 754bf9808..84bb07bc0 100644
--- a/Classes/LinphoneUI/LinphoneManager.h
+++ b/Classes/LinphoneUI/LinphoneManager.h
@@ -92,7 +92,8 @@ typedef struct _LinphoneCallAppData {
 -(NSString*) getDisplayNameFromAddressBook:(NSString*) number andUpdateCallLog:(LinphoneCallLog*)log; 
 -(UIImage*) getImageFromAddressBook:(NSString*) number;
 
--(void) setupNetworkReachabilityCallback: (const char*) nodeName withContext:(SCNetworkReachabilityContext*) ctx;
+-(BOOL) reconfigureLinphoneIfNeeded:(NSDictionary *)oldSettings;
+-(void) setupNetworkReachabilityCallback;
 -(void) refreshRegisters;
 
 @property (nonatomic, retain) id<LinphoneUICallDelegate> callDelegate;
diff --git a/Classes/LinphoneUI/LinphoneManager.m b/Classes/LinphoneUI/LinphoneManager.m
index 35f77c04c..7719c38d9 100644
--- a/Classes/LinphoneUI/LinphoneManager.m
+++ b/Classes/LinphoneUI/LinphoneManager.m
@@ -178,6 +178,14 @@ struct codec_name_pref_table codec_pref_table[]={
 }
 
 -(void) onCall:(LinphoneCall*) call StateChanged: (LinphoneCallState) new_state withMessage: (const char *)  message {
+    if(new_state == LinphoneCallReleased) {
+        if(linphone_call_get_user_pointer(call) != NULL) {
+            free (linphone_call_get_user_pointer(call));
+            linphone_call_set_user_pointer(call, NULL);
+        }
+        return;
+    }
+    
     const char* lUserNameChars=linphone_address_get_username(linphone_call_get_remote_address(call));
     NSString* lUserName = lUserNameChars?[[[NSString alloc] initWithUTF8String:lUserNameChars] autorelease]:NSLocalizedString(@"Unknown",nil);
     if (new_state == LinphoneCallIncomingReceived) {
@@ -306,9 +314,6 @@ struct codec_name_pref_table codec_pref_table[]={
                 [callDelegate displayInCall:call FromUI:mCurrentViewController forUser:lUserName withDisplayName:lDisplayName];
             }
 			break;
-        case LinphoneCallReleased:
-            free (linphone_call_get_user_pointer(call));
-            break;
         default:
             break;
 	}
@@ -322,12 +327,9 @@ struct codec_name_pref_table codec_pref_table[]={
 }
 
 +(LinphoneCore*) getLc {
-#if 0
 	if (theLinphoneCore==nil) {
 		@throw([NSException exceptionWithName:@"LinphoneCoreException" reason:@"Linphone core not initialized yet" userInfo:nil]);
 	}
-#else
-#endif
 	return theLinphoneCore;
 }
 
@@ -468,6 +470,14 @@ static LinphoneCoreVTable linphonec_vtable = {
 };
 
 
+-(void) configurePayloadType:(const char*) type fromPrefKey: (NSString*)key withRate:(int)rate  {
+	if ([[NSUserDefaults standardUserDefaults] boolForKey:key]) { 		
+		PayloadType* pt;
+		if((pt = linphone_core_find_payload_type(theLinphoneCore,type,rate))) {
+			linphone_core_enable_payload_type(theLinphoneCore,pt, TRUE);
+		}
+	} 
+}
 -(void) kickOffNetworkConnection {
 	/*start a new thread to avoid blocking the main ui in case of peer host failure*/
 	[NSThread detachNewThreadSelector:@selector(runNetworkConnection) toTarget:self withObject:nil];
@@ -575,7 +585,9 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 
 // no proxy configured alert 
 - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
-	
+	if (buttonIndex == 1) {
+		[[NSUserDefaults standardUserDefaults] setBool:true forKey:@"check_config_disable_preference"];
+	}
 }
 -(void) destroyLibLinphone {
 	[mIterateTimer invalidate]; 
@@ -631,6 +643,10 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 		} else {
 			ms_warning("keepalive handler cannot be registered");
 		}
+		LCSipTransports transportValue;
+		if (linphone_core_get_sip_transports(theLinphoneCore, &transportValue)) {
+			ms_error("cannot get current transport");	
+		}
 		return YES;
 	}
 	else {
@@ -646,9 +662,12 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	linphone_core_iterate(theLinphoneCore);
 }
 
--(void) setupNetworkReachabilityCallback: (const char*) nodeName withContext:(SCNetworkReachabilityContext*) ctx {
+-(void) setupNetworkReachabilityCallback {
+	SCNetworkReachabilityContext *ctx=NULL;
+	const char *nodeName="linphone.org";
+	
     if (proxyReachability) {
-        ms_message("Cancel old network reachability check");
+        ms_message("Cancelling old network reachability");
         SCNetworkReachabilityUnscheduleFromRunLoop(proxyReachability, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
         CFRelease(proxyReachability);
         proxyReachability = nil;
@@ -723,7 +742,9 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	
 	linphone_core_set_zrtp_secrets_file(theLinphoneCore, [zrtpSecretsFileName cStringUsingEncoding:[NSString defaultCStringEncoding]]);
     
-    [self setupNetworkReachabilityCallback: "linphone.org" withContext:nil];
+    [self setupNetworkReachabilityCallback];
+
+	[self reconfigureLinphoneIfNeeded:nil];
 	
 	// start scheduler
 	mIterateTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 
@@ -787,10 +808,14 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 		linphone_core_enable_video(theLinphoneCore, FALSE, FALSE);
 	}
     
-    ms_warning("Linphone [%s]  started on [%s], running with [%u] processor(s)"
+    if ([LinphoneManager runningOnIpad])
+        ms_set_cpu_count(2);
+    else
+        ms_set_cpu_count(1);
+    
+    ms_warning("Linphone [%s]  started on [%s]"
                ,linphone_core_get_version()
-               ,[[UIDevice currentDevice].model cStringUsingEncoding:[NSString defaultCStringEncoding]],
-			   cpucount);
+               ,[[UIDevice currentDevice].model cStringUsingEncoding:[NSString defaultCStringEncoding]] );
 	
 }
 
@@ -799,9 +824,16 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	if (proxyReachability){
 		SCNetworkReachabilityFlags flags=0;
 		if (!SCNetworkReachabilityGetFlags(proxyReachability, &flags)) {
-			ms_error("Cannot get reachability flags");
-		}else
-			networkReachabilityCallBack(proxyReachability, flags, 0);	
+			ms_error("Cannot get reachability flags, re-creating reachability context.");
+			[self setupNetworkReachabilityCallback];
+		}else{
+			networkReachabilityCallBack(proxyReachability, flags, 0);
+			if (flags==0){
+				/*workaround iOS bug: reachability API cease to work after some time.*/
+				/*when flags==0, either we have no network, or the reachability object lies. To workaround, create a new one*/
+				[self setupNetworkReachabilityCallback];
+			}
+		}
 	}else ms_error("No proxy reachability context created !");
 	linphone_core_refresh_registers(theLinphoneCore);//just to make sure REGISTRATION is up to date
 }
@@ -810,13 +842,11 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
     if (theLinphoneCore == nil) {
 		//back from standby and background mode is disabled
 		[self	startLibLinphone];
-	} else {
-		[self refreshRegisters];
 	}
 	/*IOS specific*/
 	linphone_core_start_dtmf_stream(theLinphoneCore);
+    
 }
-
 -(void) registerLogView:(id<LogView>) view {
 	mLogView = view;
 }
diff --git a/Classes/LinphoneUI/UISpeakerButton.m b/Classes/LinphoneUI/UISpeakerButton.m
index 10fdf5b5f..1508f4cdf 100644
--- a/Classes/LinphoneUI/UISpeakerButton.m
+++ b/Classes/LinphoneUI/UISpeakerButton.m
@@ -22,6 +22,7 @@
 #include "linphonecore.h"
 
 @implementation UISpeakerButton
+static AudioSessionPropertyID routeChangeID = kAudioSessionProperty_AudioRouteChange;
 
 static void audioRouteChangeListenerCallback (
                                        void                   *inUserData,                                 // 1
@@ -36,7 +37,7 @@ static void audioRouteChangeListenerCallback (
 
 -(void) initWithOnImage:(UIImage*) onImage offImage:(UIImage*) offImage debugName:(const char *)name{
    [super initWithOnImage:onImage offImage:offImage debugName:name];
-   AudioSessionPropertyID routeChangeID = kAudioSessionProperty_AudioRouteChange;
+   
    AudioSessionInitialize(NULL, NULL, NULL, NULL);
    OSStatus lStatus = AudioSessionAddPropertyListener(routeChangeID, audioRouteChangeListenerCallback, self);
    if (lStatus) {
@@ -85,7 +86,11 @@ static void audioRouteChangeListenerCallback (
  */
 
 - (void)dealloc {
-    [super dealloc];
+    OSStatus lStatus = AudioSessionRemovePropertyListenerWithUserData(routeChangeID, audioRouteChangeListenerCallback, self);
+	if (lStatus) {
+		ms_error ("cannot un register route change handler [%ld]",lStatus);
+	}
+	[super dealloc];
 }
 
 
diff --git a/Classes/PhoneViewController-ipad.xib b/Classes/PhoneViewController-ipad.xib
index fc15c4af0..0b5db5b31 100644
--- a/Classes/PhoneViewController-ipad.xib
+++ b/Classes/PhoneViewController-ipad.xib
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <archive type="com.apple.InterfaceBuilder3.CocoaTouch.iPad.XIB" version="8.00">
 	<data>
-		<int key="IBDocument.SystemTarget">1280</int>
-		<string key="IBDocument.SystemVersion">11C74</string>
-		<string key="IBDocument.InterfaceBuilderVersion">1938</string>
-		<string key="IBDocument.AppKitVersion">1138.23</string>
-		<string key="IBDocument.HIToolboxVersion">567.00</string>
+		<int key="IBDocument.SystemTarget">1296</int>
+		<string key="IBDocument.SystemVersion">11E53</string>
+		<string key="IBDocument.InterfaceBuilderVersion">2182</string>
+		<string key="IBDocument.AppKitVersion">1138.47</string>
+		<string key="IBDocument.HIToolboxVersion">569.00</string>
 		<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
 			<string key="NS.key.0">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
-			<string key="NS.object.0">933</string>
+			<string key="NS.object.0">1181</string>
 		</object>
 		<array key="IBDocument.IntegratedClassDependencies">
 			<string>IBUIViewController</string>
@@ -325,7 +325,7 @@
 									<string key="targetRuntimeIdentifier">IBIPadFramework</string>
 									<int key="IBUIContentHorizontalAlignment">0</int>
 									<int key="IBUIContentVerticalAlignment">0</int>
-									<string key="IBUINormalTitle">4</string>
+									<string key="IBUINormalTitle">6</string>
 									<reference key="IBUIHighlightedTitleColor" ref="839360217"/>
 									<object class="NSColor" key="IBUINormalTitleColor">
 										<int key="NSColorSpace">1</int>
@@ -371,7 +371,7 @@
 									<string key="targetRuntimeIdentifier">IBIPadFramework</string>
 									<int key="IBUIContentHorizontalAlignment">0</int>
 									<int key="IBUIContentVerticalAlignment">0</int>
-									<string key="IBUINormalTitle">6</string>
+									<string key="IBUINormalTitle">4</string>
 									<reference key="IBUIHighlightedTitleColor" ref="839360217"/>
 									<object class="NSColor" key="IBUINormalTitleColor">
 										<int key="NSColorSpace">1</int>
@@ -583,14 +583,6 @@
 					</object>
 					<int key="connectionID">47</int>
 				</object>
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchOutletConnection" key="connection">
-						<string key="label">four</string>
-						<reference key="source" ref="372490531"/>
-						<reference key="destination" ref="803418491"/>
-					</object>
-					<int key="connectionID">48</int>
-				</object>
 				<object class="IBConnectionRecord">
 					<object class="IBCocoaTouchOutletConnection" key="connection">
 						<string key="label">hash</string>
@@ -623,14 +615,6 @@
 					</object>
 					<int key="connectionID">52</int>
 				</object>
-				<object class="IBConnectionRecord">
-					<object class="IBCocoaTouchOutletConnection" key="connection">
-						<string key="label">six</string>
-						<reference key="source" ref="372490531"/>
-						<reference key="destination" ref="34136542"/>
-					</object>
-					<int key="connectionID">53</int>
-				</object>
 				<object class="IBConnectionRecord">
 					<object class="IBCocoaTouchOutletConnection" key="connection">
 						<string key="label">star</string>
@@ -727,6 +711,22 @@
 					</object>
 					<int key="connectionID">62</int>
 				</object>
+				<object class="IBConnectionRecord">
+					<object class="IBCocoaTouchOutletConnection" key="connection">
+						<string key="label">four</string>
+						<reference key="source" ref="372490531"/>
+						<reference key="destination" ref="34136542"/>
+					</object>
+					<int key="connectionID">63</int>
+				</object>
+				<object class="IBConnectionRecord">
+					<object class="IBCocoaTouchOutletConnection" key="connection">
+						<string key="label">six</string>
+						<reference key="source" ref="372490531"/>
+						<reference key="destination" ref="803418491"/>
+					</object>
+					<int key="connectionID">64</int>
+				</object>
 			</array>
 			<object class="IBMutableOrderedSet" key="objectRecords">
 				<array key="orderedObjects">
@@ -940,7 +940,7 @@
 			<nil key="activeLocalization"/>
 			<dictionary class="NSMutableDictionary" key="localizations"/>
 			<nil key="sourceID"/>
-			<int key="maxID">62</int>
+			<int key="maxID">64</int>
 		</object>
 		<object class="IBClassDescriber" key="IBDocument.Classes">
 			<array class="NSMutableArray" key="referencedPartialClassDescriptions">
@@ -1121,6 +1121,10 @@
 		</object>
 		<int key="IBDocument.localizationMode">0</int>
 		<string key="IBDocument.TargetRuntimeIdentifier">IBIPadFramework</string>
+		<object class="NSMutableDictionary" key="IBDocument.PluginDeclaredDependencyDefaults">
+			<string key="NS.key.0">com.apple.InterfaceBuilder.CocoaTouchPlugin.iPhoneOS</string>
+			<real value="1296" key="NS.object.0"/>
+		</object>
 		<bool key="IBDocument.PluginDeclaredDependenciesTrackSystemTargetVersion">YES</bool>
 		<int key="IBDocument.defaultPropertyAccessControl">3</int>
 		<dictionary class="NSMutableDictionary" key="IBDocument.LastKnownImageSizes">
@@ -1131,6 +1135,6 @@
 			<string key="startcall-gray.png">{60, 52}</string>
 			<string key="startcall-green.png">{60, 52}</string>
 		</dictionary>
-		<string key="IBCocoaTouchPluginVersion">933</string>
+		<string key="IBCocoaTouchPluginVersion">1181</string>
 	</data>
 </archive>
diff --git a/Classes/PhoneViewController.m b/Classes/PhoneViewController.m
index 34e842e5f..8ba6dff29 100644
--- a/Classes/PhoneViewController.m
+++ b/Classes/PhoneViewController.m
@@ -265,9 +265,9 @@
         
 		mIncomingCallActionSheet = [[UIActionSheet alloc] initWithTitle:[NSString  stringWithFormat:NSLocalizedString(@" %@ is calling you",nil),[displayName length]>0?displayName:username]
 															   delegate:cd 
-													  cancelButtonTitle:NSLocalizedString(@"Decline",nil) 
+													  cancelButtonTitle:nil 
 												 destructiveButtonTitle:NSLocalizedString(@"Answer",nil) 
-													  otherButtonTitles:nil];
+													  otherButtonTitles:NSLocalizedString(@"Decline",nil),nil];
         
 		mIncomingCallActionSheet.actionSheetStyle = UIActionSheetStyleDefault;
         if ([LinphoneManager runningOnIpad]) {
@@ -315,8 +315,8 @@
 
 -(void) displayInCall: (LinphoneCall*) call FromUI:(UIViewController*) viewCtrl forUser:(NSString*) username withDisplayName:(NSString*) displayName {
     [mMainScreenWithVideoPreview showPreview:NO]; 
-    if (self.presentedViewController != (UIViewController*)mIncallViewController && (call == 0x0 ||
-																  linphone_call_get_dir(call)==LinphoneCallIncoming)){
+    if (self.presentedViewController != (UIViewController*)mIncallViewController /*&& (call == 0x0 ||
+																  linphone_call_get_dir(call)==LinphoneCallIncoming)*/){
 		[self presentModalViewController:(UIViewController*)mIncallViewController animated:true];
 		
 	}
diff --git a/linphone-Info.plist b/linphone-Info.plist
index 9558573e0..45828b413 100644
--- a/linphone-Info.plist
+++ b/linphone-Info.plist
@@ -24,11 +24,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.5.0</string>
+	<string>3.5.2</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1.1.2</string>
+	<string>1.3</string>
 	<key>NSMainNibFile</key>
 	<string>PhoneMainView</string>
 	<key>NSMainNibFile~ipad</key>
diff --git a/linphone.xcodeproj/project.pbxproj b/linphone.xcodeproj/project.pbxproj
index 97bdf99e3..6f3ff353f 100755
--- a/linphone.xcodeproj/project.pbxproj
+++ b/linphone.xcodeproj/project.pbxproj
@@ -1798,7 +1798,7 @@
 					HAVE_SILK,
 				);
 				GCC_THUMB_SUPPORT = NO;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
+				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
 				HEADER_SEARCH_PATHS = (
 					submodules/linphone/coreapi,
 					submodules/linphone/mediastreamer2/include,
@@ -1837,7 +1837,7 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 3.1;
 				LIBRARY_SEARCH_PATHS = "";
 				LINK_WITH_STANDARD_LIBRARIES = YES;
-				PROVISIONING_PROFILE = "32E63D15-36ED-474A-8157-8DD0770DF063";
+				PROVISIONING_PROFILE = "B8ED8915-B69D-40DA-9B89-1700C44B156B";
 				SDKROOT = iphoneos;
 			};
 			name = DistributionAdhoc;
@@ -1864,7 +1864,7 @@
 					HAVE_SILK,
 				);
 				GCC_THUMB_SUPPORT = NO;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
+				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
 				HEADER_SEARCH_PATHS = (
 					submodules/linphone/coreapi,
 					submodules/linphone/mediastreamer2/include,
@@ -2140,7 +2140,7 @@
 					HAVE_SILK,
 				);
 				GCC_THUMB_SUPPORT = NO;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
+				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
 				HEADER_SEARCH_PATHS = (
 					submodules/linphone/coreapi,
 					submodules/linphone/mediastreamer2/include,
@@ -2207,7 +2207,7 @@
 					HAVE_SILK,
 				);
 				GCC_THUMB_SUPPORT = NO;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
+				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
 				HEADER_SEARCH_PATHS = (
 					submodules/linphone/coreapi,
 					submodules/linphone/mediastreamer2/include,
diff --git a/submodules/linphone b/submodules/linphone
index 23d589cec..630e26944 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit 23d589cec01361b7c08528cd7433d5b01c0579bb
+Subproject commit 630e26944dd6e5cca53787452b162ec6baf7ba48