diff --git a/.gitmodules b/.gitmodules
index 91ccd4cab..3cbcd38e4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -49,3 +49,6 @@
 [submodule "submodules/tunnel"]
 	path = submodules/tunnel
 	url = gitosis@git.linphone.org:tunnel
+[submodule "submodules/bcg729"]
+	path = submodules/bcg729
+	url = git://git.linphone.org/bcg729.git
diff --git a/Classes/LinphoneAppDelegate.h b/Classes/LinphoneAppDelegate.h
index 0de437353..cf01f937c 100644
--- a/Classes/LinphoneAppDelegate.h
+++ b/Classes/LinphoneAppDelegate.h
@@ -20,6 +20,7 @@
 
 #import <UIKit/UIKit.h>
 #import <AddressBookUI/ABPeoplePickerNavigationController.h>
+#import "CoreTelephony/CTCallCenter.h"
 
 #define DIALER_TAB_INDEX 1
 #define CONTACTS_TAB_INDEX 2
@@ -39,7 +40,8 @@
 	IBOutlet PhoneViewController* myPhoneViewController;
 	CallHistoryTableViewController* myCallHistoryTableViewController;
 	ContactPickerDelegate* myContactPickerDelegate;
-	
+    
+    CTCallCenter* callCenter;
 }
 
 @property (nonatomic, retain) IBOutlet UIWindow *window;
diff --git a/Classes/LinphoneAppDelegate.m b/Classes/LinphoneAppDelegate.m
index 52d29b56b..8cbd45e2c 100644
--- a/Classes/LinphoneAppDelegate.m
+++ b/Classes/LinphoneAppDelegate.m
@@ -22,6 +22,9 @@
 #import "ContactPickerDelegate.h"
 #import "AddressBook/ABPerson.h"
 
+#import "CoreTelephony/CTCallCenter.h"
+#import "CoreTelephony/CTCall.h"
+
 #import "ConsoleViewController.h"
 #import "MoreViewController.h"
 #include "CallHistoryTableViewController.h"
@@ -29,6 +32,13 @@
 #include "LinphoneManager.h"
 #include "linphonecore.h"
 
+#if __clang__ && __arm__
+extern int __divsi3(int a, int b);
+int __aeabi_idiv(int a, int b) {
+	return __divsi3(a,b);
+}
+#endif
+
 @implementation linphoneAppDelegate
 
 @synthesize window;
@@ -36,6 +46,24 @@
 @synthesize myPeoplePickerController;
 @synthesize myPhoneViewController;
 
+-(void) handleGSMCallInteration: (id) cCenter {
+    CTCallCenter* ct = (CTCallCenter*) cCenter;
+    
+    int callCount = [ct.currentCalls count];
+    if (!callCount) {
+        NSLog(@"No GSM call -> enabling SIP calls");
+        linphone_core_set_max_calls([LinphoneManager getLc], 3);
+    } else {
+        NSLog(@"%d GSM call(s) -> disabling SIP calls", callCount);
+        /* pause current call, if any */
+        LinphoneCall* call = linphone_core_get_current_call([LinphoneManager getLc]);
+        if (call) {
+            NSLog(@"Pausing SIP call");
+            linphone_core_pause_call([LinphoneManager getLc], call);
+        }
+        linphone_core_set_max_calls([LinphoneManager getLc], 0);
+    }
+}
 
 -(void)applicationWillResignActive:(UIApplication *)application {
     LinphoneCore* lc = [LinphoneManager getLc];
@@ -55,11 +83,31 @@
     
 }
 - (void)applicationDidEnterBackground:(UIApplication *)application {
-	[[LinphoneManager instance] enterBackgroundMode];
+    if (![[LinphoneManager instance] enterBackgroundMode]) {
+        // destroying eventHandler if app cannot go in background.
+        // Otherwise if a GSM call happen and Linphone is resumed,
+        // the handler will be called before LinphoneCore is built.
+        // Then handler will be restored in appDidBecomeActive cb
+        callCenter.callEventHandler = nil;
+        [callCenter release];
+        callCenter = nil;
+    }
 }
 - (void)applicationDidBecomeActive:(UIApplication *)application {
 	[[LinphoneManager instance] becomeActive];
     
+    if (callCenter == nil) {
+        callCenter = [[CTCallCenter alloc] init];
+        callCenter.callEventHandler = ^(CTCall* call) {
+            // post on main thread
+            [self performSelectorOnMainThread:@selector(handleGSMCallInteration:)
+                                   withObject:callCenter
+                                waitUntilDone:YES];
+        };
+    }
+    // check call state at startup
+    [self handleGSMCallInteration:callCenter];
+    
     LinphoneCore* lc = [LinphoneManager getLc];
     LinphoneCall* call = linphone_core_get_current_call(lc);
     if (call == NULL)
@@ -107,6 +155,9 @@
 #ifdef HAVE_AMR                                 
                                  @"YES",@"amr_8k_preference", // enable amr by default if compiled with
 #endif
+#ifdef HAVE_G729                                 
+                                 @"YES",@"g729_preference", // enable amr by default if compiled with
+#endif                                 
                                  @"NO",@"debugenable_preference",
 								 //@"+33",@"countrycode_preference",
                                  nil];
@@ -117,6 +168,7 @@
     [[NSUserDefaults standardUserDefaults] synchronize];
 	
 }
+
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    
 	
 	/*
@@ -166,9 +218,16 @@
 	
 	[[LinphoneManager instance] setCallDelegate:myPhoneViewController];
 	[[LinphoneManager instance]	startLibLinphone];
-		
+
 	[[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeSound];
-		
+
+	callCenter = [[CTCallCenter alloc] init];
+    callCenter.callEventHandler = ^(CTCall* call) {
+        // post on main thread
+        [self performSelectorOnMainThread:@selector(handleGSMCallInteration:)
+                               withObject:callCenter
+                            waitUntilDone:YES];
+    };
 	return YES;
 }
 
diff --git a/Classes/LinphoneUI/FastAddressBook.m b/Classes/LinphoneUI/FastAddressBook.m
index 1f88a0077..e1e3334c6 100644
--- a/Classes/LinphoneUI/FastAddressBook.m
+++ b/Classes/LinphoneUI/FastAddressBook.m
@@ -89,13 +89,13 @@ void sync_address_book (ABAddressBookRef addressBook, CFDictionaryRef info, void
 -(id) initWithRecord:(ABRecordRef) aRecord ofType:(NSString*) type {
      if ((self = [super init])) {
          record=CFRetain(aRecord);
-         numberType= type?[type retain]:@"unkown";
+         numberType= [type?type:@"unknown" retain];
      }
     return self;
 }
 - (void)dealloc {
-    [super dealloc];
     CFRelease(record);
     [numberType release];
+    [super dealloc];
 }
 @end
diff --git a/Classes/LinphoneUI/LinphoneManager.h b/Classes/LinphoneUI/LinphoneManager.h
index b7a8414cd..046835fe2 100644
--- a/Classes/LinphoneUI/LinphoneManager.h
+++ b/Classes/LinphoneUI/LinphoneManager.h
@@ -75,7 +75,7 @@ typedef struct _CallContext {
 -(BOOL) isNotIphone3G;
 -(void) destroyLibLinphone;
   
--(void) enterBackgroundMode;
+-(BOOL) enterBackgroundMode;
 -(void) becomeActive;
 -(void) kickOffNetworkConnection;
 -(NSString*) getDisplayNameFromAddressBook:(NSString*) number andUpdateCallLog:(LinphoneCallLog*)log; 
diff --git a/Classes/LinphoneUI/LinphoneManager.m b/Classes/LinphoneUI/LinphoneManager.m
index 563b961b0..75a643344 100644
--- a/Classes/LinphoneUI/LinphoneManager.m
+++ b/Classes/LinphoneUI/LinphoneManager.m
@@ -50,6 +50,9 @@ extern void libmsx264_init();
 extern void libmssilk_init(); 
 #endif
 
+#if HAVE_G729
+extern  void libmsbcg729_init();
+#endif
 @implementation LinphoneManager
 @synthesize callDelegate;
 @synthesize registrationDelegate;
@@ -365,6 +368,7 @@ static void linphone_iphone_call_state(LinphoneCore *lc, LinphoneCall* call, Lin
 												  cancelButtonTitle:NSLocalizedString(@"Continue",nil) 
 												  otherButtonTitles:nil ,nil];
                 [error show];
+                [error release];
             }
 		}
 		
@@ -676,6 +680,7 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	[self configurePayloadType:"PCMU" fromPrefKey:@"pcmu_preference" withRate:8000];
 	[self configurePayloadType:"PCMA" fromPrefKey:@"pcma_preference" withRate:8000];
 	[self configurePayloadType:"G722" fromPrefKey:@"g722_preference" withRate:8000];
+	[self configurePayloadType:"G729" fromPrefKey:@"g729_preference" withRate:8000];
 	
 	//get video codecs from linphonerc
 	const MSList *videoCodecs=linphone_core_get_video_codecs(theLinphoneCore);
@@ -741,6 +746,7 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	AVAudioSession *audioSession = [AVAudioSession sharedInstance];
 	[audioSession setDelegate:nil];
 	if (theLinphoneCore != nil) { //just in case application terminate before linphone core initialization
+        NSLog(@"Destroy linphonecore");
 		linphone_core_destroy(theLinphoneCore);
 		theLinphoneCore = nil;
         SCNetworkReachabilityUnscheduleFromRunLoop(proxyReachability, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
@@ -750,7 +756,7 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 }
 
 //**********************BG mode management*************************///////////
--(void) enterBackgroundMode {
+-(BOOL) enterBackgroundMode {
 	LinphoneProxyConfig* proxyCfg;
 	linphone_core_get_default_proxy(theLinphoneCore, &proxyCfg);	
 	linphone_core_stop_dtmf_stream(theLinphoneCore);
@@ -790,11 +796,12 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 		if (linphone_core_get_sip_transports(theLinphoneCore, &transportValue)) {
 			ms_error("cannot get current transport");	
 		}
-		
+		return YES;
 	}
 	else {
 		ms_warning("Entering lite bg mode");
 		[self destroyLibLinphone];
+        return NO;
 	}
 	
 }
@@ -840,6 +847,10 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 #ifdef HAVE_X264
 	libmsx264_init(); //load x264 plugin if present from the liblinphone sdk
 #endif
+
+#if HAVE_G729
+	libmsbcg729_init(); // load g729 plugin
+#endif
 	/* Initialize linphone core*/
 	
 	linphonec_vtable.show =NULL;
@@ -855,6 +866,7 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	linphonec_vtable.text_received=NULL;
 	linphonec_vtable.dtmf_received=NULL;
 	
+
 	theLinphoneCore = linphone_core_new (&linphonec_vtable
 										 , [confiFileName cStringUsingEncoding:[NSString defaultCStringEncoding]]
 										 , [factoryConfig cStringUsingEncoding:[NSString defaultCStringEncoding]]
@@ -946,13 +958,12 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	
 }
 -(void) becomeActive {
-    
     if (theLinphoneCore == nil) {
 		//back from standby and background mode is disabled
 		[self	startLibLinphone];
 	} else {
         if (![self reconfigureLinphoneIfNeeded:currentSettings]) {
-            ms_message("becomming active with no config modification, make sure we are registered");
+            ms_message("becoming active with no config modification, make sure we are registered");
             linphone_core_refresh_registers(theLinphoneCore);//just to make sure REGISTRATION is up to date
         }
 		
diff --git a/Classes/LinphoneUI/UICallButton.m b/Classes/LinphoneUI/UICallButton.m
index 58ddac124..9b1fbf68d 100644
--- a/Classes/LinphoneUI/UICallButton.m
+++ b/Classes/LinphoneUI/UICallButton.m
@@ -19,6 +19,7 @@
 
 #import "UICallButton.h"
 #import "LinphoneManager.h"
+#import "CoreTelephony/CTCallCenter.h"
 
 
 @implementation UICallButton
@@ -33,6 +34,22 @@
         [error release];
 		return;
 	}
+    
+    CTCallCenter* ct = [[CTCallCenter alloc] init];
+    if ([ct.currentCalls count] > 0) {
+        ms_error("GSM call in progress, cancelling outgoing SIP call request");
+		UIAlertView* error = [[UIAlertView alloc]	initWithTitle:NSLocalizedString(@"Cannot make call",nil)
+														message:NSLocalizedString(@"Please terminate GSM call",nil) 
+													   delegate:nil 
+											  cancelButtonTitle:NSLocalizedString(@"Continue",nil) 
+											  otherButtonTitles:nil];
+		[error show];
+        [error release];
+        [ct release];
+		return;
+    }
+    [ct release];
+    
 	if (TRUE /*!linphone_core_in_call([LinphoneManager getLc])*/) {
 		LinphoneProxyConfig* proxyCfg;	
 		//get default proxy
diff --git a/Classes/StatusSubViewController.m b/Classes/StatusSubViewController.m
index e0d1cadcb..f1eaa2423 100644
--- a/Classes/StatusSubViewController.m
+++ b/Classes/StatusSubViewController.m
@@ -60,7 +60,7 @@
 }
 
 -(BOOL) updateWithRegistrationState:(LinphoneRegistrationState)state message:(NSString*) message {
-    
+    label.hidden = NO;
     switch(state) {
         case LinphoneRegistrationCleared:
             image.hidden = NO;
diff --git a/Classes/StatusSubViewController.xib b/Classes/StatusSubViewController.xib
index d93f8f7f6..9ce474c3b 100644
--- a/Classes/StatusSubViewController.xib
+++ b/Classes/StatusSubViewController.xib
@@ -39,7 +39,7 @@
 				<array class="NSMutableArray" key="NSSubviews">
 					<object class="IBUIImageView" id="332800514">
 						<reference key="NSNextResponder" ref="848661322"/>
-						<int key="NSvFlags">292</int>
+						<int key="NSvFlags">-2147483356</int>
 						<string key="NSFrame">{{0, -1}, {25, 23}}</string>
 						<reference key="NSSuperview" ref="848661322"/>
 						<reference key="NSWindow"/>
@@ -66,7 +66,7 @@
 					</object>
 					<object class="IBUILabel" id="200467549">
 						<reference key="NSNextResponder" ref="848661322"/>
-						<int key="NSvFlags">292</int>
+						<int key="NSvFlags">-2147483356</int>
 						<string key="NSFrame">{{28, 0}, {280, 21}}</string>
 						<reference key="NSSuperview" ref="848661322"/>
 						<reference key="NSWindow"/>
@@ -76,7 +76,7 @@
 						<int key="IBUIContentMode">7</int>
 						<bool key="IBUIUserInteractionEnabled">NO</bool>
 						<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
-						<string key="IBUIText">No SIP account defined</string>
+						<string key="IBUIText">CARAMBA</string>
 						<object class="NSColor" key="IBUITextColor">
 							<int key="NSColorSpace">3</int>
 							<bytes key="NSWhite">MC42NjY2NjY2NjY3AA</bytes>
diff --git a/Classes/VideoViewController-ipad.xib b/Classes/VideoViewController-ipad.xib
index 6aee67bb2..01b0daa4c 100644
--- a/Classes/VideoViewController-ipad.xib
+++ b/Classes/VideoViewController-ipad.xib
@@ -35,9 +35,10 @@
 			<object class="IBUIView" id="191373211">
 				<reference key="NSNextResponder"/>
 				<int key="NSvFlags">274</int>
-				<string key="NSFrameSize">{768, 1004}</string>
+				<string key="NSFrameSize">{768, 1024}</string>
 				<reference key="NSSuperview"/>
 				<reference key="NSWindow"/>
+				<reference key="NSNextKeyView"/>
 				<object class="NSColor" key="IBUIBackgroundColor">
 					<int key="NSColorSpace">4</int>
 					<bytes key="NSWhite">MAA</bytes>
@@ -51,10 +52,10 @@
 					<object class="IBUIImageView" id="873033834">
 						<reference key="NSNextResponder" ref="25193021"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{-9, 0}, {777, 1004}}</string>
+						<string key="NSFrameSize">{768, 1024}</string>
 						<reference key="NSSuperview" ref="25193021"/>
 						<reference key="NSWindow"/>
-						<reference key="NSNextKeyView" ref="68468370"/>
+						<reference key="NSNextKeyView" ref="901145609"/>
 						<string key="NSReuseIdentifierKey">_NS:569</string>
 						<bool key="IBUIUserInteractionEnabled">NO</bool>
 						<string key="targetRuntimeIdentifier">IBIPadFramework</string>
@@ -62,7 +63,7 @@
 					<object class="IBUIButton" id="897140295">
 						<reference key="NSNextResponder" ref="25193021"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{329, 942}, {108, 62}}</string>
+						<string key="NSFrame">{{329, 962}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="25193021"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="509323940"/>
@@ -105,7 +106,7 @@
 					<object class="IBUIButton" id="68468370">
 						<reference key="NSNextResponder" ref="25193021"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{223, 942}, {108, 62}}</string>
+						<string key="NSFrame">{{223, 962}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="25193021"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="897140295"/>
@@ -126,9 +127,10 @@
 					<object class="IBUIView" id="679593526">
 						<reference key="NSNextResponder" ref="25193021"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{598, 779}, {170, 225}}</string>
+						<string key="NSFrame">{{598, 799}, {170, 225}}</string>
 						<reference key="NSSuperview" ref="25193021"/>
 						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView"/>
 						<object class="NSColor" key="IBUIBackgroundColor">
 							<int key="NSColorSpace">3</int>
 							<bytes key="NSWhite">MQA</bytes>
@@ -141,7 +143,7 @@
 					<object class="IBUIButton" id="509323940">
 						<reference key="NSNextResponder" ref="25193021"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{436, 942}, {108, 62}}</string>
+						<string key="NSFrame">{{436, 962}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="25193021"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="679593526"/>
@@ -164,15 +166,16 @@
 					<object class="IBUIImageView" id="901145609">
 						<reference key="NSNextResponder" ref="25193021"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{20, 956}, {28, 28}}</string>
+						<string key="NSFrame">{{20, 976}, {28, 28}}</string>
 						<reference key="NSSuperview" ref="25193021"/>
 						<reference key="NSWindow"/>
+						<reference key="NSNextKeyView" ref="68468370"/>
 						<string key="NSReuseIdentifierKey">_NS:567</string>
 						<bool key="IBUIUserInteractionEnabled">NO</bool>
 						<string key="targetRuntimeIdentifier">IBIPadFramework</string>
 					</object>
 				</array>
-				<string key="NSFrameSize">{768, 1004}</string>
+				<string key="NSFrameSize">{768, 1024}</string>
 				<reference key="NSSuperview"/>
 				<reference key="NSWindow"/>
 				<reference key="NSNextKeyView" ref="873033834"/>
@@ -190,7 +193,7 @@
 					<object class="IBUIImageView" id="696525010">
 						<reference key="NSNextResponder" ref="763566492"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrameSize">{1004, 768}</string>
+						<string key="NSFrameSize">{1024, 768}</string>
 						<reference key="NSSuperview" ref="763566492"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="637528292"/>
@@ -201,7 +204,7 @@
 					<object class="IBUIView" id="756580344">
 						<reference key="NSNextResponder" ref="763566492"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{779, 598}, {225, 170}}</string>
+						<string key="NSFrame">{{799, 598}, {225, 170}}</string>
 						<reference key="NSSuperview" ref="763566492"/>
 						<reference key="NSWindow"/>
 						<object class="NSColor" key="IBUIBackgroundColor">
@@ -214,7 +217,7 @@
 					<object class="IBUIButton" id="637528292">
 						<reference key="NSNextResponder" ref="763566492"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{341, 706}, {108, 62}}</string>
+						<string key="NSFrame">{{351, 706}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="763566492"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="303730267"/>
@@ -235,7 +238,7 @@
 					<object class="IBUIButton" id="303730267">
 						<reference key="NSNextResponder" ref="763566492"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{448, 706}, {108, 62}}</string>
+						<string key="NSFrame">{{458, 706}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="763566492"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="499714887"/>
@@ -257,7 +260,7 @@
 					<object class="IBUIButton" id="499714887">
 						<reference key="NSNextResponder" ref="763566492"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{555, 706}, {108, 62}}</string>
+						<string key="NSFrame">{{565, 706}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="763566492"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="756580344"/>
@@ -288,7 +291,7 @@
 						<string key="targetRuntimeIdentifier">IBIPadFramework</string>
 					</object>
 				</array>
-				<string key="NSFrameSize">{1004, 768}</string>
+				<string key="NSFrameSize">{1024, 768}</string>
 				<reference key="NSSuperview"/>
 				<reference key="NSWindow"/>
 				<reference key="NSNextKeyView" ref="696525010"/>
@@ -310,7 +313,7 @@
 					<object class="IBUIImageView" id="97794255">
 						<reference key="NSNextResponder" ref="79829529"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrameSize">{1004, 768}</string>
+						<string key="NSFrameSize">{1024, 768}</string>
 						<reference key="NSSuperview" ref="79829529"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="243148779"/>
@@ -321,7 +324,7 @@
 					<object class="IBUIView" id="799261982">
 						<reference key="NSNextResponder" ref="79829529"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{779, 598}, {225, 170}}</string>
+						<string key="NSFrame">{{799, 598}, {225, 170}}</string>
 						<reference key="NSSuperview" ref="79829529"/>
 						<reference key="NSWindow"/>
 						<object class="NSColor" key="IBUIBackgroundColor">
@@ -334,7 +337,7 @@
 					<object class="IBUIButton" id="243148779">
 						<reference key="NSNextResponder" ref="79829529"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{341, 706}, {108, 62}}</string>
+						<string key="NSFrame">{{351, 706}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="79829529"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="796028571"/>
@@ -355,7 +358,7 @@
 					<object class="IBUIButton" id="796028571">
 						<reference key="NSNextResponder" ref="79829529"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{448, 706}, {108, 62}}</string>
+						<string key="NSFrame">{{458, 706}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="79829529"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="551257366"/>
@@ -377,7 +380,7 @@
 					<object class="IBUIButton" id="551257366">
 						<reference key="NSNextResponder" ref="79829529"/>
 						<int key="NSvFlags">292</int>
-						<string key="NSFrame">{{555, 706}, {108, 62}}</string>
+						<string key="NSFrame">{{565, 706}, {108, 62}}</string>
 						<reference key="NSSuperview" ref="79829529"/>
 						<reference key="NSWindow"/>
 						<reference key="NSNextKeyView" ref="799261982"/>
@@ -408,7 +411,7 @@
 						<string key="targetRuntimeIdentifier">IBIPadFramework</string>
 					</object>
 				</array>
-				<string key="NSFrameSize">{1004, 768}</string>
+				<string key="NSFrameSize">{1024, 768}</string>
 				<reference key="NSSuperview"/>
 				<reference key="NSWindow"/>
 				<reference key="NSNextKeyView" ref="97794255"/>
diff --git a/PhoneMainView.xib b/PhoneMainView.xib
index 3953ea8da..b4c3174c1 100644
--- a/PhoneMainView.xib
+++ b/PhoneMainView.xib
@@ -47,6 +47,7 @@
 				<object class="NSPSMatrix" key="NSFrameMatrix"/>
 				<string key="NSFrameSize">{320, 480}</string>
 				<reference key="NSSuperview"/>
+				<reference key="NSNextKeyView"/>
 				<object class="NSColor" key="IBUIBackgroundColor">
 					<int key="NSColorSpace">1</int>
 					<bytes key="NSRGB">MSAxIDEAA</bytes>
@@ -140,6 +141,7 @@
 					<int key="NSvFlags">266</int>
 					<string key="NSFrame">{{0, 431}, {320, 49}}</string>
 					<reference key="NSSuperview"/>
+					<reference key="NSNextKeyView"/>
 					<object class="NSColor" key="IBUIBackgroundColor">
 						<int key="NSColorSpace">3</int>
 						<bytes key="NSWhite">MCAwAA</bytes>
@@ -366,10 +368,6 @@
 			<string key="NS.key.0">com.apple.InterfaceBuilder.CocoaTouchPlugin.iPhoneOS</string>
 			<integer value="784" key="NS.object.0"/>
 		</object>
-		<object class="NSMutableDictionary" key="IBDocument.PluginDeclaredDependencyDefaults">
-			<string key="NS.key.0">com.apple.InterfaceBuilder.CocoaTouchPlugin.iPhoneOS</string>
-			<real value="1280" key="NS.object.0"/>
-		</object>
 		<object class="NSMutableDictionary" key="IBDocument.PluginDeclaredDevelopmentDependencies">
 			<string key="NS.key.0">com.apple.InterfaceBuilder.CocoaTouchPlugin.InterfaceBuilder3</string>
 			<integer value="3000" key="NS.object.0"/>
diff --git a/README b/README
index 69c6e6e7e..4f0900f9d 100644
--- a/README
+++ b/README
@@ -25,8 +25,10 @@ Link macport libtoolize to glibtoolize
 
 Link host's strings to simulator SDK 
 
-	$ ln -s  /usr/bin/strings /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/strings
-
+	For Xcode prior to 4.3:
+	$ sudo ln -s  /usr/bin/strings /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/strings
+	For newer XCode:
+	$ sudo ln -s  /usr/bin/strings /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/strings
 
 
 BUILDING THE SDK
@@ -63,9 +65,9 @@ After the SDK is built, just open the linphone xcode project with Xcode, and pre
 
  * Note regarding third party components subject to license
  
-The liblinphone-sdk is compiled with third parties code that are subject to patent license, specially: AMR, SILK and  X264 codecs.
-Linphone controls the embedding of these codecs thanks to the preprocessor macros HAVE_SILK, HAVE_AMR, HAVE_X264 positioned in xcode project.
-Before embeding these 3 codecs in the final application, make sure to have the right to do so.
+The liblinphone-sdk is compiled with third parties code that are subject to patent license, specially: AMR, SILK G729 and  X264 codecs.
+Linphone controls the embedding of these codecs thanks to the preprocessor macros HAVE_SILK, HAVE_AMR, HAVE_G729 HAVE_X264 positioned in xcode project.
+Before embeding these 4 codecs in the final application, make sure to have the right to do so.
 
 
 LIMITATIONS, KNOWN BUGS
diff --git a/linphone.xcodeproj/project.pbxproj b/linphone.xcodeproj/project.pbxproj
index 796704773..ef6478f8b 100755
--- a/linphone.xcodeproj/project.pbxproj
+++ b/linphone.xcodeproj/project.pbxproj
@@ -133,6 +133,7 @@
 		34CA8530148F646700503C01 /* MainScreenWithVideoPreview.xib in Resources */ = {isa = PBXBuildFile; fileRef = 34CA852E148F646700503C01 /* MainScreenWithVideoPreview.xib */; };
 		34CA8536148F669900503C01 /* VideoViewController-ipad.xib in Resources */ = {isa = PBXBuildFile; fileRef = 34CA8534148F669900503C01 /* VideoViewController-ipad.xib */; };
 		34CA853A148F692A00503C01 /* MainScreenWithVideoPreview.m in Sources */ = {isa = PBXBuildFile; fileRef = 34CA8538148F692A00503C01 /* MainScreenWithVideoPreview.m */; };
+		57D8FE5F15137F69006BB25F /* CoreTelephony.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 57D8FE5E15137F69006BB25F /* CoreTelephony.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -490,6 +491,7 @@
 		34CA8534148F669900503C01 /* VideoViewController-ipad.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; path = "VideoViewController-ipad.xib"; sourceTree = "<group>"; };
 		34CA8537148F692A00503C01 /* MainScreenWithVideoPreview.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MainScreenWithVideoPreview.h; sourceTree = "<group>"; };
 		34CA8538148F692A00503C01 /* MainScreenWithVideoPreview.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MainScreenWithVideoPreview.m; sourceTree = "<group>"; };
+		57D8FE5E15137F69006BB25F /* CoreTelephony.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreTelephony.framework; path = System/Library/Frameworks/CoreTelephony.framework; sourceTree = SDKROOT; };
 		70571E1913FABCB000CDD3C2 /* rootca.pem */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; name = rootca.pem; path = Resources/rootca.pem; sourceTree = "<group>"; };
 		7066FC0B13E830E400EFC6DC /* libvpx.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libvpx.a; path = "liblinphone-sdk/apple-darwin/lib/libvpx.a"; sourceTree = "<group>"; };
 		70E542F213E147E3002BA2C0 /* OpenGLES.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = OpenGLES.framework; path = System/Library/Frameworks/OpenGLES.framework; sourceTree = SDKROOT; };
@@ -503,6 +505,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				57D8FE5F15137F69006BB25F /* CoreTelephony.framework in Frameworks */,
 				22D8F15B147548E2008C97DB /* libvpx.a in Frameworks */,
 				22D8F15C147548E2008C97DB /* QuartzCore.framework in Frameworks */,
 				22D8F15D147548E2008C97DB /* OpenGLES.framework in Frameworks */,
@@ -917,6 +920,7 @@
 		29B97314FDCFA39411CA2CEA /* CustomTemplate */ = {
 			isa = PBXGroup;
 			children = (
+				57D8FE5E15137F69006BB25F /* CoreTelephony.framework */,
 				F07EBD1C149F40A5006F61D2 /* libtunnel.a */,
 				344ABDF014850AE9007420B6 /* libstdc++.6.dylib */,
 				2211DB9614764F6B00DEE054 /* nogpl-thirdparties */,
diff --git a/linphonerc b/linphonerc
index f0dff0146..ef80ec31e 100644
--- a/linphonerc
+++ b/linphonerc
@@ -2,7 +2,7 @@
 download_bw=380
 upload_bw=380
 firewall_policy=0
-mtu=0
+mtu=1300
 
 [sip]
 sip_random_port=1
diff --git a/linphonerc-ipad b/linphonerc-ipad
index 59853ab38..402f17b15 100644
--- a/linphonerc-ipad
+++ b/linphonerc-ipad
@@ -2,7 +2,7 @@
 download_bw=512
 upload_bw=512
 firewall_policy=0
-mtu=0
+mtu=1300
 
 [sip]
 sip_random_port=1
diff --git a/submodules/bcg729 b/submodules/bcg729
new file mode 160000
index 000000000..1ad5aa5ab
--- /dev/null
+++ b/submodules/bcg729
@@ -0,0 +1 @@
+Subproject commit 1ad5aa5abdf23bb260595b07f0705c9ede1a37d2
diff --git a/submodules/build/Makefile b/submodules/build/Makefile
index 830974c99..67f2bd100 100644
--- a/submodules/build/Makefile
+++ b/submodules/build/Makefile
@@ -48,10 +48,17 @@ build:
 	&& make -f  builder-iphone-os.mk   host=armv7-apple-darwin all enable_gpl_third_parties=$(enable_gpl_third_parties)\
 	&& make -f builder-iphone-os.mk delivery-sdk 
 
+ipa: build
+	make -f  builder-iphone-simulator.mk  ipa \
+	&&  make -f  builder-iphone-os.mk  ipa \
+	&&  make -f  builder-iphone-os.mk   host=armv7-apple-darwin ipa
+
+
 clean:
 	make -f  builder-iphone-simulator.mk  clean\
 	&&  make -f  builder-iphone-os.mk  clean\
 	&&  make -f  builder-iphone-os.mk   host=armv7-apple-darwin clean
+
 clean-makefile:
 	make -f  builder-iphone-simulator.mk  clean-makefile \
 	&&  make -f  builder-iphone-os.mk  clean-makefile \
diff --git a/submodules/build/builder-iphone-os.mk b/submodules/build/builder-iphone-os.mk
index da6484b83..b34ee547c 100644
--- a/submodules/build/builder-iphone-os.mk
+++ b/submodules/build/builder-iphone-os.mk
@@ -46,7 +46,7 @@ BUILDER_BUILD_DIR?=$(shell pwd)/../build-$(host)
 LINPHONE_SRC_DIR=$(BUILDER_SRC_DIR)/linphone
 LINPHONE_BUILD_DIR=$(BUILDER_BUILD_DIR)/linphone
 
-all: build-linphone build-msilbc build-msamr build-msx264 build-mssilk
+all: build-linphone build-msilbc build-msamr build-msx264 build-mssilk build-msbcg729
 
 $(LINPHONE_BUILD_DIR)/enable_gpl_third_parties: 
 	mkdir -p $(LINPHONE_BUILD_DIR)
@@ -94,18 +94,20 @@ endif
 prefix?=$(BUILDER_SRC_DIR)/../liblinphone-sdk/$(host)
 
 
-clean-makefile: clean-makefile-linphone
-clean: clean-linphone
+clean-makefile: clean-makefile-linphone clean-makefile-msbcg729
+clean: clean-linphone clean-msbcg729
 init:
 	mkdir -p $(prefix)/include
 	mkdir -p $(prefix)/lib/pkgconfig
 
-veryclean: veryclean-linphone
+veryclean: veryclean-linphone veryclean-msbcg729
 	rm -rf $(BUILDER_BUILD_DIR)
 
 
+
 .NOTPARALLEL build-linphone: init build-openssl build-tunnel build-srtp build-zrtpcpp build-osip2 build-eXosip2  build-speex build-libgsm build-ffmpeg build-libvpx detect_gpl_mode_switch $(LINPHONE_BUILD_DIR)/Makefile
-	cd $(LINPHONE_BUILD_DIR)  && export PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig export CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) make newdate &&  make  && make install
+	cd $(LINPHONE_BUILD_DIR)  && export PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig export CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) make newdate && make && make install
+
 
 clean-linphone: clean-osip2 clean-eXosip2 clean-speex clean-libgsm  clean-srtp clean-zrtpcpp clean-msilbc clean-libilbc clean-tunnel clean-openssl clean-msamr clean-mssilk clean-ffmpeg clean-libvpx clean-msx264 
 	cd  $(LINPHONE_BUILD_DIR) && make clean
@@ -123,18 +125,18 @@ $(LINPHONE_SRC_DIR)/configure:
 
 $(LINPHONE_BUILD_DIR)/Makefile: $(LINPHONE_SRC_DIR)/configure
 	mkdir -p $(LINPHONE_BUILD_DIR)
-	echo -e "\033[1mPKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+	echo -e "\033[1mPKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
         $(LINPHONE_SRC_DIR)/configure -prefix=$(prefix) --host=$(host) ${library_mode} \
         ${linphone_configure_controls}\033[0m"
 	cd $(LINPHONE_BUILD_DIR) && \
-	PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+	PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
 	CFLAGS="$(CFLAGS) -DMS2_MINIMAL_SIZE" $(LINPHONE_SRC_DIR)/configure -prefix=$(prefix) --host=$(host) ${library_mode} \
 	${linphone_configure_controls}
 	
 
 #libphone only (asume dependencies are met)
 build-liblinphone: $(LINPHONE_BUILD_DIR)/Makefile 
-	cd $(LINPHONE_BUILD_DIR)  && export PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig export CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) make newdate &&  make  && make install
+	cd $(LINPHONE_BUILD_DIR)  && export PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig export CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) make newdate &&  make  && make install
 
 clean-makefile-liblinphone:  
 	 cd $(LINPHONE_BUILD_DIR) && rm -f Makefile && rm -f oRTP/Makefile && rm -f mediastreamer2/Makefile	 
@@ -153,7 +155,7 @@ $(BUILDER_BUILD_DIR)/$(osip_dir)/Makefile: $(BUILDER_SRC_DIR)/$(osip_dir)/config
 	$(BUILDER_SRC_DIR)/$(osip_dir)/configure -prefix=$(prefix) --host=$(host) ${library_mode}  
 
 build-osip2: $(BUILDER_BUILD_DIR)/$(osip_dir)/Makefile
-	 cd $(BUILDER_BUILD_DIR)/$(osip_dir) && PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site)  make && make install
+	 cd $(BUILDER_BUILD_DIR)/$(osip_dir) && PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site)  make && make install
 
 clean-osip2:
 	 cd  $(BUILDER_BUILD_DIR)/$(osip_dir) && make clean
@@ -172,12 +174,12 @@ $(BUILDER_SRC_DIR)/$(eXosip_dir)/configure:
 $(BUILDER_BUILD_DIR)/$(eXosip_dir)/Makefile: $(BUILDER_SRC_DIR)/$(eXosip_dir)/configure 
 	mkdir -p $(BUILDER_BUILD_DIR)/$(eXosip_dir)
 	cd $(BUILDER_BUILD_DIR)/$(eXosip_dir)/\
-	&& PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig  CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
-	$(BUILDER_SRC_DIR)/$(eXosip_dir)/configure -prefix=$(prefix) --host=$(host) ${library_mode} CFLAGS="-I$(prefix)/include -L$(prefix)/lib -lcrypto" --disable-openssl  --disable-tools 
+	&& PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig  CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+	$(BUILDER_SRC_DIR)/$(eXosip_dir)/configure -prefix=$(prefix) --host=$(host) ${library_mode} CFLAGS="-I$(prefix)/include -L$(prefix)/lib -lcrypto" --enable-openssl  --disable-tools 
 
 build-eXosip2: $(BUILDER_BUILD_DIR)/$(eXosip_dir)/Makefile
 	 cd $(BUILDER_BUILD_DIR)/$(eXosip_dir)  \
-	&& PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+	&& PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
 	make  DEFS="-DHAVE_CONFIG_H -include $(BUILDER_SRC_DIR)/$(eXosip_dir)/include/eXosip2/eXosip_transport_hook.h" && make install
 
 clean-eXosip2:
@@ -244,7 +246,7 @@ $(MSILBC_SRC_DIR)/configure:
 $(MSILBC_BUILD_DIR)/Makefile: $(MSILBC_SRC_DIR)/configure
 	mkdir -p $(MSILBC_BUILD_DIR)
 	cd $(MSILBC_BUILD_DIR) && \
-	PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+	PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
 	$(MSILBC_SRC_DIR)/configure -prefix=$(prefix) --host=$(host) $(library_mode)
 
 build-msilbc: build-libilbc $(MSILBC_BUILD_DIR)/Makefile
@@ -268,7 +270,7 @@ $(LIBILBC_SRC_DIR)/configure:
 $(LIBILBC_BUILD_DIR)/Makefile: $(LIBILBC_SRC_DIR)/configure
 	mkdir -p $(LIBILBC_BUILD_DIR)
 	cd $(LIBILBC_BUILD_DIR) && \
-	PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+	PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
 	$(LIBILBC_SRC_DIR)/configure -prefix=$(prefix) --host=$(host) $(library_mode)
 
 build-libilbc: $(LIBILBC_BUILD_DIR)/Makefile
@@ -327,4 +329,8 @@ delivery:
 	-x linphone-iphone/build\* \
 	-x \*.git\*
 
+ipa:
+	cd $(BUILDER_SRC_DIR)/../ \
+	&& xcodebuild  -configuration DistributionAdhoc \
+	&& xcrun -sdk iphoneos PackageApplication -v build/DistributionAdhoc-iphoneos/linphone.app -o $(BUILDER_SRC_DIR)/../linphone-iphone.ipa
 
diff --git a/submodules/build/builders.d/libvpx.mk b/submodules/build/builders.d/libvpx.mk
index f1acb950c..13e0aa62b 100644
--- a/submodules/build/builders.d/libvpx.mk
+++ b/submodules/build/builders.d/libvpx.mk
@@ -13,11 +13,16 @@ else
 endif
 libvpx_dir?=externals/libvpx
 
-$(BUILDER_BUILD_DIR)/$(libvpx_dir)/config.mk:
+$(BUILDER_SRC_DIR)/$(libvpx_dir)/patched.stamp:
+	cd $(BUILDER_SRC_DIR)/$(libvpx_dir) \
+	&& git apply $(BUILDER_SRC_DIR)/build/builders.d/libvpx.patch \
+	&& touch $@
+
+$(BUILDER_BUILD_DIR)/$(libvpx_dir)/config.mk: $(BUILDER_SRC_DIR)/$(libvpx_dir)/patched.stamp
 	mkdir -p $(BUILDER_BUILD_DIR)/$(libvpx_dir)
 	cd $(BUILDER_BUILD_DIR)/$(libvpx_dir)/ \
 	&&  host_alias=${host} . $(BUILDER_SRC_DIR)/build/$(config_site) \
-	&& $(BUILDER_SRC_DIR)/$(libvpx_dir)/configure --prefix=$(prefix) $(libvpx_configure_options)
+	&& SYSROOT_PATH=$$SYSROOT_PATH SDK_BIN_PATH=$$SDK_BIN_PATH $(BUILDER_SRC_DIR)/$(libvpx_dir)/configure --prefix=$(prefix) $(libvpx_configure_options)
 
 build-libvpx: $(BUILDER_BUILD_DIR)/$(libvpx_dir)/config.mk
 	cd $(BUILDER_BUILD_DIR)/$(libvpx_dir) && PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site)  make  && make install
diff --git a/submodules/build/builders.d/libvpx.patch b/submodules/build/builders.d/libvpx.patch
new file mode 100644
index 000000000..390ec4ecf
--- /dev/null
+++ b/submodules/build/builders.d/libvpx.patch
@@ -0,0 +1,42 @@
+diff --git a/build/make/configure.sh b/build/make/configure.sh
+index 0426f92..24fa04e 100755
+--- a/build/make/configure.sh
++++ b/build/make/configure.sh
+@@ -624,6 +624,9 @@ process_common_toolchain() {
+     if [ -d "/Developer/SDKs/MacOSX10.7.sdk" ]; then
+         osx_sdk_dir="/Developer/SDKs/MacOSX10.7.sdk"
+     fi
++    if test -n "$SYSROOT_PATH" ; then
++        osx_sdk_dir=$SYSROOT_PATH
++    fi
+ 
+     case ${toolchain} in
+         *-darwin8-*)
+@@ -743,6 +746,14 @@ process_common_toolchain() {
+         darwin*)
+             SDK_PATH=/Developer/Platforms/iPhoneOS.platform/Developer
+             TOOLCHAIN_PATH=${SDK_PATH}/usr/bin
++            if test -n "$SYSROOT_PATH" ; then
++               SDK_FULL_PATH=$SYSROOT_PATH
++            else
++               SDK_FULL_PATH="${SDK_PATH}/SDKs/iPhoneOS5.0.sdk"
++            fi
++            if test -n "$SDK_BIN_PATH" ; then
++                TOOLCHAIN_PATH=$SDK_BIN_PATH
++            fi
+             CC=${TOOLCHAIN_PATH}/gcc
+             AR=${TOOLCHAIN_PATH}/ar
+             LD=${TOOLCHAIN_PATH}/arm-apple-darwin10-llvm-gcc-4.2
+@@ -759,10 +770,10 @@ process_common_toolchain() {
+             add_cflags -arch ${tgt_isa}
+             add_ldflags -arch_only ${tgt_isa}
+ 
+-            add_cflags  "-isysroot ${SDK_PATH}/SDKs/iPhoneOS5.0.sdk"
++            add_cflags  "-isysroot $SDK_FULL_PATH"
+ 
+             # This should be overridable
+-            alt_libc=${SDK_PATH}/SDKs/iPhoneOS5.0.sdk
++            alt_libc=$SDK_FULL_PATH
+ 
+             # Add the paths for the alternate libc
+             for d in usr/include; do
diff --git a/submodules/build/builders.d/msbcg729.mk b/submodules/build/builders.d/msbcg729.mk
new file mode 100644
index 000000000..727be6148
--- /dev/null
+++ b/submodules/build/builders.d/msbcg729.mk
@@ -0,0 +1,61 @@
+############################################################################
+# msbcg729.mk 
+# Copyright (C) 2011  Belledonne Communications,Grenoble France
+#
+############################################################################
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+############################################################################
+msbcg729_dir?=bcg729
+enable_bcg729?=yes
+
+$(BUILDER_SRC_DIR)/$(msbcg729_dir)/configure:
+	@echo -e "\033[01;32m Running autogen for msbcg729 in $(BUILDER_SRC_DIR)/$(msbcg729_dir) \033[0m"
+	cd $(BUILDER_SRC_DIR)/$(msbcg729_dir) && ./autogen.sh
+
+$(BUILDER_BUILD_DIR)/$(msbcg729_dir)/Makefile: $(BUILDER_SRC_DIR)/$(msbcg729_dir)/configure
+	@echo -e "\033[01;32m Running configure in $(BUILDER_BUILD_DIR)/$(msbcg729_dir) \033[0m"
+	mkdir -p $(BUILDER_BUILD_DIR)/$(msbcg729_dir)
+	cd $(BUILDER_BUILD_DIR)/$(msbcg729_dir)/ \
+		&& PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+		$(BUILDER_SRC_DIR)/$(msbcg729_dir)/configure -prefix=$(prefix) --host=$(host) ${library_mode} \
+		--enable-static
+
+ifeq ($(enable_bcg729),yes)
+
+build-msbcg729: $(BUILDER_BUILD_DIR)/$(msbcg729_dir)/Makefile
+	@echo -e "\033[01;32m building bcg729 \033[0m"
+	cd $(BUILDER_BUILD_DIR)/$(msbcg729_dir) \
+		&& PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig \
+		CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+		make -j1 && make install
+
+
+else
+build-msbcg729:
+	@echo "G729 is disabled"
+
+endif
+
+clean-msbcg729: 
+	-cd  $(BUILDER_BUILD_DIR)/$(msbcg729_dir) && make clean
+
+veryclean-msbcg729: 
+	-cd $(BUILDER_BUILD_DIR)/$(msbcg729_dir) && make distclean 
+	rm -f $(BUILDER_SRC_DIR)/$(msbcg729_dir)/configure
+
+clean-makefile-msbcg729: 
+	-cd $(BUILDER_BUILD_DIR)/$(msbcg729_dir) && rm -f Makefile
diff --git a/submodules/build/iphone-config.site b/submodules/build/iphone-config.site
index c4c7840a8..4256d17ed 100644
--- a/submodules/build/iphone-config.site
+++ b/submodules/build/iphone-config.site
@@ -24,8 +24,15 @@ else
 fi
 echo "Loading config.site for iPhone platform=${PLATFORM} version=${SDK_VERSION}"
 
-SDK_PATH_LIST=`ls -drt /Developer/Platforms/iPhone${PLATFORM}.platform/Developer/SDKs/iPhone${PLATFORM}*`
-SDK_BIN_PATH=/Developer/Platforms/iPhone${PLATFORM}.platform/Developer/usr/bin     
+#new path with Xcode 4.3:
+if test -d /Applications/Xcode.app/Contents/Developer/Platforms/iPhone${PLATFORM}.platform/Developer/SDKs ; then
+	SDK_PATH_LIST=`ls -drt /Applications/Xcode.app/Contents/Developer/Platforms/iPhone${PLATFORM}.platform/Developer/SDKs/iPhone${PLATFORM}*`
+	SDK_BIN_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/iPhone${PLATFORM}.platform/Developer/usr/bin  
+else
+	SDK_PATH_LIST=`ls -drt /Developer/Platforms/iPhone${PLATFORM}.platform/Developer/SDKs/iPhone${PLATFORM}*`
+	SDK_BIN_PATH=/Developer/Platforms/iPhone${PLATFORM}.platform/Developer/usr/bin  
+fi
+   
 for SYSROOT_PATH in $SDK_PATH_LIST ; do echo $SYSROOT_PATH ; done ;
 echo "Selecting SDK path = ${SYSROOT_PATH}"
 COMMON_FLAGS=" -arch ${ARCH} ${MCPU} -isysroot ${SYSROOT_PATH} -miphoneos-version-min=${SDK_VERSION} -DTARGET_OS_IPHONE=1 -D__IOS"