diff --git a/.gitignore b/.gitignore
index 179b224ec..dd07bff2c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
 build-*
-
diff --git a/.gitmodules b/.gitmodules
index c1dd99cd6..f73eee008 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,7 +3,7 @@
 	url = gitosis@git.linphone.org:linphone-private.git
 [submodule "submodules/externals/osip"]
 	path = submodules/externals/osip
-	url = git://git.savannah.gnu.org/osip.git
+	url = git://git.linphone.org/osip.git
 [submodule "submodules/externals/exosip"]
 	path = submodules/externals/exosip
 	url = git://git.linphone.org/exosip.git
@@ -37,3 +37,6 @@
 [submodule "submodules/externals/libvpx"]
 	path = submodules/externals/libvpx
 	url = http://git.chromium.org/webm/libvpx.git
+[submodule "submodules/externals/zrtpcpp"]
+        path = submodules/externals/zrtpcpp
+        url = git://github.com/wernerd/ZRTPCPP.git
diff --git a/Classes/LinphoneUI/LinphoneManager.h b/Classes/LinphoneUI/LinphoneManager.h
index 9c7139521..a80e91b44 100644
--- a/Classes/LinphoneUI/LinphoneManager.h
+++ b/Classes/LinphoneUI/LinphoneManager.h
@@ -52,6 +52,7 @@ typedef enum _Connectivity {
 -(void) registerLogView:(id<LogView>) view;
 
 -(void) startLibLinphone;
+-(BOOL) isNotIphone3G;
 -(void) destroyLibLinphone;
   
 -(void) enterBackgroundMode;
diff --git a/Classes/LinphoneUI/LinphoneManager.m b/Classes/LinphoneUI/LinphoneManager.m
index f09b3cce5..7a3545fee 100644
--- a/Classes/LinphoneUI/LinphoneManager.m
+++ b/Classes/LinphoneUI/LinphoneManager.m
@@ -26,6 +26,8 @@
 #import <AVFoundation/AVAudioSession.h>
 #import <AudioToolbox/AudioToolbox.h>
 #import "FastAddressBook.h"
+#include <sys/sysctl.h>
+
 static LinphoneCore* theLinphoneCore=nil;
 static LinphoneManager* theLinphoneManager=nil;
 
@@ -396,16 +398,17 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 		if (linphone_core_get_sip_transports(theLinphoneCore, &transportValue)) {
 			ms_error("cannot get current transport");	
 		}
+		// Only one port can be set at one time, the others's value is 0
 		if ([transport isEqualToString:@"tcp"]) {
-			if (transportValue.tcp_port == 0) transportValue.tcp_port=transportValue.udp_port;
+			if (transportValue.tcp_port == 0) transportValue.tcp_port=transportValue.udp_port + transportValue.tls_port;
 			transportValue.udp_port=0;
             transportValue.tls_port=0;
 		} else if ([transport isEqualToString:@"udp"]){
-			if (transportValue.udp_port == 0) transportValue.udp_port=transportValue.tcp_port;
+			if (transportValue.udp_port == 0) transportValue.udp_port=transportValue.tcp_port + transportValue.tls_port;
 			transportValue.tcp_port=0;
             transportValue.tls_port=0;
 		} else if ([transport isEqualToString:@"tls"]){
-			if (transportValue.tls_port == 0) transportValue.tls_port=transportValue.udp_port;
+			if (transportValue.tls_port == 0) transportValue.tls_port=transportValue.udp_port + transportValue.tcp_port;
 			transportValue.tcp_port=0;
             transportValue.udp_port=0;
 		} else {
@@ -513,8 +516,14 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	}
 	
 	//read codecs from setting  bundle and enable them one by one
-	[self configurePayloadType:"speex" fromPrefKey:@"speex_16k_preference" withRate:16000];
-	[self configurePayloadType:"speex" fromPrefKey:@"speex_8k_preference" withRate:8000];
+    if ([self isNotIphone3G]) {
+        [self configurePayloadType:"speex" fromPrefKey:@"speex_16k_preference" withRate:16000];
+        [self configurePayloadType:"speex" fromPrefKey:@"speex_8k_preference" withRate:8000];
+    }
+    else
+    {
+        ms_message("SPEEX codecs deactivated");
+    }
     [self configurePayloadType:"AMR" fromPrefKey:@"amr_8k_preference" withRate:8000];
 	[self configurePayloadType:"GSM" fromPrefKey:@"gsm_8k_preference" withRate:8000];
 	[self configurePayloadType:"iLBC" fromPrefKey:@"ilbc_preference" withRate:8000];
@@ -546,6 +555,18 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	}
 	
 }
+- (BOOL)isNotIphone3G
+{
+    size_t size;
+    sysctlbyname("hw.machine", NULL, &size, NULL, 0);
+    char *machine = malloc(size);
+    sysctlbyname("hw.machine", machine, &size, NULL, 0);
+    NSString *platform = [NSString stringWithCString:machine];
+    free(machine);
+    
+    return ![platform isEqualToString:@"iPhone1,2"];
+}
+
 // no proxy configured alert 
 - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
 	if (buttonIndex == 1) {
@@ -674,6 +695,7 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 	NSString* factoryConfig = [myBundle pathForResource:@"linphonerc"ofType:nil] ;
 	NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
 	NSString *confiFileName = [[paths objectAtIndex:0] stringByAppendingString:@"/.linphonerc"];
+	NSString *zrtpSecretsFileName = [[paths objectAtIndex:0] stringByAppendingString:@"/zrtp_secrets"];
 	connectivity=none;
 	signal(SIGPIPE, SIG_IGN);
 	//log management	
@@ -702,7 +724,8 @@ void networkReachabilityCallBack(SCNetworkReachabilityRef target, SCNetworkReach
 										 ,self);
 	
 	[[NSUserDefaults standardUserDefaults] synchronize];//sync before loading config 
-	
+
+	linphone_core_set_zrtp_secrets_file(theLinphoneCore, [zrtpSecretsFileName cStringUsingEncoding:[NSString defaultCStringEncoding]]);
     
     proxyReachability=SCNetworkReachabilityCreateWithName(nil, "linphone.org");		
     proxyReachabilityContext.info=self;
diff --git a/README b/README
index 51a95ce31..71bf976f5 100644
--- a/README
+++ b/README
@@ -8,6 +8,7 @@ Linphone for iPhone depends on liblinphone sdk. To build this sdk, you must inst
 -intltool
 -wget
 -pkgconfig
+-cmake (for ZRTP support)
 
 
 gas-preprosessor.pl  (http://github.com/yuvi/gas-preprocessor/ ) to be copied into /opt/local/bin
diff --git a/linphonerc b/linphonerc
index 41df325bf..5b9d49c56 100644
--- a/linphonerc
+++ b/linphonerc
@@ -25,7 +25,7 @@ nortp_timeout=30
 
 [sound]
 playback_dev_id=AU: Audio Unit Receiver
-ringer_dev_id=AU: Audio Unit Speaker
+ringer_dev_id=AQ: Audio Queue Device
 capture_dev_id=AU: Audio Unit Receiver
 echocancellation=0
 
@@ -37,4 +37,4 @@ display=1
 capture=1
 show_local=0
 enabled=1
-size=ios-medium
\ No newline at end of file
+size=ios-medium
diff --git a/submodules/build/Makefile b/submodules/build/Makefile
index 9c2e11552..53658e4e4 100644
--- a/submodules/build/Makefile
+++ b/submodules/build/Makefile
@@ -20,9 +20,9 @@
 #
 ############################################################################
 all:
-	make -f  builder-iphone-simulator.mk  all \
-	&&  make -f  builder-iphone-os.mk  all \
-	&&  make -f  builder-iphone-os.mk   host=armv7-apple-darwin all \
+	make -f  builder-iphone-os.mk  all \
+	&& make -f  builder-iphone-simulator.mk all \
+	&& make -f  builder-iphone-os.mk   host=armv7-apple-darwin all \
 	&& make -f builder-iphone-os.mk delivery-sdk
 clean:
 	make -f  builder-iphone-simulator.mk  clean \
diff --git a/submodules/build/builder-iphone-os.mk b/submodules/build/builder-iphone-os.mk
index 32b869571..6bbe1fbc8 100644
--- a/submodules/build/builder-iphone-os.mk
+++ b/submodules/build/builder-iphone-os.mk
@@ -21,6 +21,7 @@
 ############################################################################
  
 host?=armv6-apple-darwin
+enable_zrtp=no
 config_site:=iphone-config.site
 library_mode:= --disable-shared --enable-static
 linphone_configure_controls=  \
@@ -28,13 +29,17 @@ linphone_configure_controls=  \
 			      --disable-nls \
                               --with-readline=none  \
                               --enable-gtk_ui=no \
-			      --enable-console_ui=no \
+                              --enable-console_ui=no \
                               --enable-ssl-hmac=no \
                               --enable-ssl=yes \
 			      --disable-theora \
 			      --disable-sdl \
 			      --disable-x11 \
                               --with-gsm=$(prefix) \
+			      --disable-tests \
+                              LIBZRTPCPP_CFLAGS="-I$(prefix)/include" \
+			      LIBZRTPCPP_LIBS="-L$(prefix)/lib -lzrtpcpp -lcrypto" \
+			      SRTP_LIBS="-L$(prefix)/lib -lsrtp -lcrypto" \
                               --enable-vp8 \
                               SPEEX_CFLAGS="-I$(prefix)/include" \
                               SPEEXDSP_CFLAGS="-I$(prefix)/include" \
@@ -42,6 +47,10 @@ linphone_configure_controls=  \
                               SPEEX_LIBS="-L$(prefix)/lib -lspeexdsp -lspeex " \
                               OPENSSL_CFLAGS="-I$(prefix)/include" \
                               OPENSSL_LIBS="-L$(prefix)/lib -lssl -lcrypto" 
+ifeq ($(enable_zrtp),yes)
+	linphone_configure_controls+= --with-srtp=$(prefix) --enable-zrtp=yes --disable-tests
+endif
+
 
 #path
 BUILDER_SRC_DIR?=$(shell pwd)/../
@@ -58,6 +67,10 @@ speex_dir?=externals/speex
 
 gsm_dir?=externals/gsm
 
+srtp_dir?=externals/srtp
+
+zrtpcpp_dir?=externals/zrtpcpp
+
 MSILBC_SRC_DIR:=$(BUILDER_SRC_DIR)/msilbc
 MSILBC_BUILD_DIR:=$(BUILDER_BUILD_DIR)/msilbc
 
@@ -67,7 +80,6 @@ LIBILBC_BUILD_DIR:=$(BUILDER_BUILD_DIR)/libilbc-rfc3951
 ifneq (,$(findstring arm,$(host)))
 	SPEEX_CONFIGURE_OPTION := --enable-fixed-point --disable-float-api
 	#SPEEX_CONFIGURE_OPTION := --enable-arm5e-asm --enable-fixed-point
-else
 endif
 
 
@@ -84,17 +96,17 @@ init:
 veryclean: veryclean-linphone
 	rm -rf $(BUILDER_BUILD_DIR)
 
-.NOTPARALLEL build-linphone: init build-openssl build-osip2 build-eXosip2  build-speex build-libgsm build-ffmpeg build-libvpx $(LINPHONE_BUILD_DIR)/Makefile
+.NOTPARALLEL build-linphone: init build-openssl build-srtp build-zrtpcpp build-osip2 build-eXosip2  build-speex build-libgsm build-ffmpeg build-libvpx $(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
 
-clean-linphone: clean-osip2 clean-eXosip2 clean-speex clean-libgsm  clean-msilbc clean-libilbc clean-openssl clean-msamr clean-ffmpeg clean-libvpx clean-msx264
+clean-linphone: clean-osip2 clean-eXosip2 clean-speex clean-libgsm  clean-srtp clean-zrtpcpp clean-msilbc clean-libilbc clean-openssl clean-msamr clean-ffmpeg clean-libvpx clean-msx264
 	cd  $(LINPHONE_BUILD_DIR) && make clean
 
-veryclean-linphone: veryclean-osip2 veryclean-eXosip2 veryclean-speex veryclean-libgsm  veryclean-msilbc veryclean-libilbc veryclean-openssl veryclean-msamr veryclean-msx264
+veryclean-linphone: veryclean-osip2 veryclean-eXosip2 veryclean-speex veryclean-srtp veryclean-zrtpcpp veryclean-libgsm veryclean-msilbc veryclean-libilbc veryclean-openssl veryclean-msamr  veryclean-msx264 
 #-cd $(LINPHONE_BUILD_DIR) && make distclean
 	-cd $(LINPHONE_SRC_DIR) && rm -f configure
 
-clean-makefile-linphone: clean-makefile-osip2 clean-makefile-eXosip2 clean-makefile-speex clean-makefile-libilbc clean-makefile-msilbc clean-makefile-openssl clean-makefile-msamr clean-makefile-ffmpeg clean-makefile-libvpx
+clean-makefile-linphone: clean-makefile-osip2 clean-makefile-eXosip2 clean-makefile-speex clean-makefile-srtp clean-makefile-zrtpcpp clean-makefile-libilbc clean-makefile-msilbc clean-makefile-openssl clean-makefile-msamr clean-makefile-ffmpeg clean-makefile-libvpx
 	cd $(LINPHONE_BUILD_DIR) && rm -f Makefile && rm -f oRTP/Makefile && rm -f mediastreamer2/Makefile
 
 
@@ -103,6 +115,9 @@ $(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) \
+        $(LINPHONE_SRC_DIR)/configure -prefix=$(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) \
 	$(LINPHONE_SRC_DIR)/configure -prefix=$(prefix) --host=$(host) ${library_mode} \
@@ -179,18 +194,19 @@ $(BUILDER_BUILD_DIR)/$(speex_dir)/Makefile: $(BUILDER_SRC_DIR)/$(speex_dir)/conf
 	$(BUILDER_SRC_DIR)/$(speex_dir)/configure -prefix=$(prefix) --host=$(host) ${library_mode} --disable-oggtest $(SPEEX_CONFIGURE_OPTION)
 
 build-speex: $(BUILDER_BUILD_DIR)/$(speex_dir)/Makefile
-	 cd $(BUILDER_BUILD_DIR)/$(speex_dir)/libspeex && make  && make install
-	 cd $(BUILDER_BUILD_DIR)/$(speex_dir)/include  && make &&  make install
+	cd $(BUILDER_BUILD_DIR)/$(speex_dir)/libspeex && make  && make install
+	cd $(BUILDER_BUILD_DIR)/$(speex_dir)/include  && make &&  make install
 
 clean-speex:
-	 cd  $(BUILDER_BUILD_DIR)/$(speex_dir)  && make clean
+	cd  $(BUILDER_BUILD_DIR)/$(speex_dir)  && make clean
 
 veryclean-speex:
 #	-cd $(BUILDER_BUILD_DIR)/$(speex_dir) && make distclean
 	-rm -f $(BUILDER_SRC_DIR)/$(speex_dir)/configure
 
 clean-makefile-speex:
-	 cd $(BUILDER_BUILD_DIR)/$(speex_dir) && rm -f Makefile
+	cd $(BUILDER_BUILD_DIR)/$(speex_dir) && rm -f Makefile
+
 
 #GSM
 
@@ -262,6 +278,8 @@ clean-makefile-libilbc:
 	cd $(LIBILBC_BUILD_DIR) && rm -f Makefile
 
 #openssl
+#srtp
+#zrtp
 include builders.d/*.mk
 #sdk generation and distribution
 
diff --git a/submodules/build/builders.d/ffmpeg.mk b/submodules/build/builders.d/ffmpeg.mk
index ff9f38e6c..04f363f4f 100644
--- a/submodules/build/builders.d/ffmpeg.mk
+++ b/submodules/build/builders.d/ffmpeg.mk
@@ -6,11 +6,11 @@ ffmpeg_configure_options=\
 	--disable-everything  --enable-decoder=mjpeg --enable-encoder=mjpeg --enable-decoder=mpeg4 --enable-encoder=mpeg4 \
 	--enable-decoder=h264 --disable-avformat --enable-armv5te --enable-armv6 --enable-armv6t2 \
 	--enable-armvfp \
-	--source-path=$(BUILDER_SRC_DIR)/$(ffmpeg_dir) \
 	--cross-prefix=$$SDK_BIN_PATH/ \
 	--sysroot=$$SYSROOT_PATH --arch=$$ARCH \
 	--enable-static   --disable-shared --target-os=darwin \
 	--extra-cflags="-arch $$ARCH " --extra-ldflags="-arch $$ARCH -Wl,-syslibroot,$$SYSROOT_PATH " \
+	--source-path=$(BUILDER_SRC_DIR)/$(ffmpeg_dir) 
 #	--as=$(BUILDER_SRC_DIR)/externals/x264/extras/gas-preprocessor.pl
 
 #--sysinclude=PATH        location of cross-build system headers
@@ -22,8 +22,12 @@ ifneq (,$(findstring armv7,$(host)))
 	ffmpeg_configure_options+= --enable-neon --cpu=cortex-a8 
 endif
 ffmpeg_dir?=externals/ffmpeg
-
-$(BUILDER_BUILD_DIR)/$(ffmpeg_dir)/config.mak: 
+$(BUILDER_SRC_DIR)/$(ffmpeg_dir)/patched :
+	cd $(BUILDER_SRC_DIR)/$(ffmpeg_dir) \
+	&& git apply $(BUILDER_SRC_DIR)/build/builders.d/ffmpeg.patch \
+	&& touch $(BUILDER_SRC_DIR)/$(ffmpeg_dir)/patched
+	
+$(BUILDER_BUILD_DIR)/$(ffmpeg_dir)/config.mak: $(BUILDER_SRC_DIR)/$(ffmpeg_dir)/patched
 	mkdir -p $(BUILDER_BUILD_DIR)/$(ffmpeg_dir)
 	cd $(BUILDER_BUILD_DIR)/$(ffmpeg_dir)/ \
 	&&  host_alias=${host} . $(BUILDER_SRC_DIR)/build/$(config_site) \
diff --git a/submodules/build/builders.d/ffmpeg.patch b/submodules/build/builders.d/ffmpeg.patch
new file mode 100644
index 000000000..05e080905
--- /dev/null
+++ b/submodules/build/builders.d/ffmpeg.patch
@@ -0,0 +1,20 @@
+diff --git a/libavutil/arm/intmath.h b/libavutil/arm/intmath.h
+index 8f03d4b..0504b95 100644
+--- a/libavutil/arm/intmath.h
++++ b/libavutil/arm/intmath.h
+@@ -91,10 +91,12 @@ static av_always_inline av_const int FASTDIV(int a, int b)
+ static av_always_inline av_const int32_t av_clipl_int32_arm(int64_t a)
+ {
+     int x, y;
+-    __asm__ volatile ("adds   %1, %R2, %Q2, lsr #31  \n\t"
++    union { uint64_t a; uint32_t hl[2]; } tmp_a;
++    tmp_a.a=a;
++    __asm__ volatile ("adds   %1, %2, %3, lsr #31  \n\t"
+                       "mvnne  %1, #1<<31             \n\t"
+-                      "eorne  %0, %1,  %R2, asr #31  \n\t"
+-                      : "=r"(x), "=&r"(y) : "r"(a));
++                      "eorne  %0, %1,  %2, asr #31  \n\t"
++                      : "=r"(x), "=&r"(y) : "r"(tmp_a.hl[0]),"r"(tmp_a.hl[1]));
+     return x;
+ }
+ 
diff --git a/submodules/build/builders.d/libvpx.mk b/submodules/build/builders.d/libvpx.mk
index 512272031..b598aab5b 100644
--- a/submodules/build/builders.d/libvpx.mk
+++ b/submodules/build/builders.d/libvpx.mk
@@ -1,6 +1,7 @@
 libvpx_configure_options=\
-	--enable-static   --disable-shared\
-#	--extra-cflags="-arch $$ARCH"
+	--enable-static   --disable-shared \
+	--disable-examples 
+#	--extra-cflags="-isysroot $$SYSROOT_PATH "
 # -Wl,-syslibroot,$$SYSROOT_PATH " \
 	--enable-error-concealment --disable-examples
 
@@ -12,12 +13,16 @@ else
 	libvpx_configure_options+= --force-target=x86-darwin10-gcc
 endif
 libvpx_dir?=externals/libvpx
+$(BUILDER_SRC_DIR)/$(libvpx_dir)/patched :
+	cd $(BUILDER_SRC_DIR)/$(libvpx_dir) \
+	&& git apply $(BUILDER_SRC_DIR)/build/builders.d/libvpx.patch \
+	&& touch $(BUILDER_SRC_DIR)/$(libvpx_dir)/patched
 
-$(BUILDER_BUILD_DIR)/$(libvpx_dir)/config.mak: 
+$(BUILDER_BUILD_DIR)/$(libvpx_dir)/config.mak: $(BUILDER_SRC_DIR)/$(libvpx_dir)/patched
 	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)
+	&& $(BUILDER_SRC_DIR)/$(libvpx_dir)/configure --prefix=$(prefix) $(libvpx_configure_options)
 
 build-libvpx: $(BUILDER_BUILD_DIR)/$(libvpx_dir)/config.mak
 	cd $(BUILDER_BUILD_DIR)/$(libvpx_dir) && PKG_CONFIG_PATH=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site)  make && make install
diff --git a/submodules/build/builders.d/libvpx.patch b/submodules/build/builders.d/libvpx.patch
new file mode 100644
index 000000000..effa15f01
--- /dev/null
+++ b/submodules/build/builders.d/libvpx.patch
@@ -0,0 +1,25 @@
+diff --git a/build/make/configure.sh b/build/make/configure.sh
+index 009a6c4..1cd1ea8 100755
+--- a/build/make/configure.sh
++++ b/build/make/configure.sh
+@@ -729,7 +729,7 @@ process_common_toolchain() {
+             TOOLCHAIN_PATH=${SDK_PATH}/usr/bin
+             CC=${TOOLCHAIN_PATH}/gcc
+             AR=${TOOLCHAIN_PATH}/ar
+-            LD=${TOOLCHAIN_PATH}/arm-apple-darwin10-gcc-4.2.1
++            LD=${TOOLCHAIN_PATH}/gcc
+             AS=${TOOLCHAIN_PATH}/as
+             STRIP=${TOOLCHAIN_PATH}/strip
+             NM=${TOOLCHAIN_PATH}/nm
+@@ -741,9 +741,9 @@ process_common_toolchain() {
+             ASFLAGS="-version -arch ${tgt_isa} -g"
+ 
+             add_cflags -arch ${tgt_isa}
+-            add_ldflags -arch_only ${tgt_isa}
++            add_ldflags "-arch ${tgt_isa} -Wl,-syslibroot,${SDK_PATH}/SDKs/iPhoneOS5.0.sdk"
+ 
+-            add_cflags  "-isysroot ${SDK_PATH}/SDKs/iPhoneOS4.3.sdk"
++            add_cflags  "-isysroot ${SDK_PATH}/SDKs/iPhoneOS5.0.sdk"
+ 
+             # This should be overridable
+             alt_libc=${SDK_PATH}/SDKs/iPhoneOS4.3.sdk
diff --git a/submodules/build/builders.d/openssl.mk b/submodules/build/builders.d/openssl.mk
index 54a2b517e..0b2e5bf80 100644
--- a/submodules/build/builders.d/openssl.mk
+++ b/submodules/build/builders.d/openssl.mk
@@ -14,7 +14,7 @@ $(OPENSSL_BUILD_DIR)/Configure:
 	&& tar xvzf  openssl-$(openssl_version).tar.gz \
 	&& rm -f openssl-$(openssl_version).tar.gz \
 	&& mv  openssl-$(openssl_version) openssl  \
-	&& cd openssl && patch -p0 < $(BUILDER_SRC_DIR)/build/openssl.patch
+	&& cd openssl && patch -p0 < $(BUILDER_SRC_DIR)/build/builders.d/openssl.patch
 
 $(OPENSSL_BUILD_DIR)/Makefile: $(OPENSSL_BUILD_DIR)/Configure
 	cd $(OPENSSL_BUILD_DIR) \
diff --git a/submodules/build/openssl.patch b/submodules/build/builders.d/openssl.patch
similarity index 100%
rename from submodules/build/openssl.patch
rename to submodules/build/builders.d/openssl.patch
diff --git a/submodules/build/builders.d/silk.mk b/submodules/build/builders.d/silk.mk
new file mode 100644
index 000000000..5e848ab79
--- /dev/null
+++ b/submodules/build/builders.d/silk.mk
@@ -0,0 +1,59 @@
+############################################################################
+# silk.mk 
+# Copyright (C) 2011  Belledonne Communications,Grenoble France
+#
+############################################################################
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+############################################################################
+
+SILK_BUILD_DIR?=$(BUILDER_BUILD_DIR)/externals/silk
+
+ifneq (,$(findstring i386,$(host)))
+        make_options := TARGET_MTUNE=i386 TARGET_ARCH=i386 
+endif
+ifneq (,$(findstring armv6,$(host)))
+        make_options := TARGET_ARCH="-arch armv6" 
+endif
+ifneq (,$(findstring armv7,$(host)))
+        make_options := USE_NEON=yes TARGET_ARCH="armv7 -mno-thumb" 
+endif
+
+$(SILK_BUILD_DIR)/Makefile:
+	mkdir -p $(BUILDER_BUILD_DIR)/externals \
+	&& cd $(BUILDER_BUILD_DIR)/externals \
+	&& rm -rf silk \
+	&& wget http://developer.skype.com/silk/SILK_SDK_SRC_v1.0.8.zip \
+	&& unzip  SILK_SDK_SRC_v1.0.8.zip \
+	&& rm -f SILK_SDK_SRC_v1.0.8.zip \
+	&& mv SILK_SDK_SRC_v1.0.8/SILK_SDK_SRC_ARM_v1.0.8 silk  \
+	&& rm -rf SILK_SDK_SRC_v1.0.8
+
+build-silk: $(SILK_BUILD_DIR)/Makefile
+	cd $(SILK_BUILD_DIR) &&  host_alias=${host} . $(BUILDER_SRC_DIR)/build/$(config_site) \
+	&& make all TOOLCHAIN_PREFIX=$$SDK_BIN_PATH/ $(make_options)   ADDED_DEFINES+=IPHONE \
+	&& mkdir -p $(prefix)/include/silk \
+	&& cp -f $(SILK_BUILD_DIR)/interface/*  $(prefix)/include/silk \
+	&& cp -f lib*.a  $(prefix)/lib 
+
+clean-silk:
+	cd  $(SILK_BUILD_DIR)  && make clean
+
+clean-makefile-silk:
+	
+veryclean-silk:
+	rm -rf $(SILK_BUILD_DIR)
+
diff --git a/submodules/build/builders.d/srtp.mk b/submodules/build/builders.d/srtp.mk
new file mode 100644
index 000000000..85e338231
--- /dev/null
+++ b/submodules/build/builders.d/srtp.mk
@@ -0,0 +1,35 @@
+srtp_version?=1.4.4
+#srtp_url?=http://srtp.sourceforge.net/srtp-$(srtp_version).tgz
+srtp_url=http://sourceforge.net/projects/srtp/files/srtp/$(srtp_version)/srtp-$(srtp_version).tgz/download
+srtp_tgz_file=srtp-$(srtp_version).tgz
+
+$(BUILDER_SRC_DIR)/externals/$(srtp_tgz_file):
+	cd $(BUILDER_SRC_DIR)/externals \
+        && wget $(srtp_url) -O $(srtp_tgz_file) 
+
+$(BUILDER_SRC_DIR)/$(srtp_dir)/configure: $(BUILDER_SRC_DIR)/externals/$(srtp_tgz_file)
+	cd $(BUILDER_SRC_DIR)/externals \
+	&& tar zxvf $(srtp_tgz_file) \
+	&& cd srtp && patch -p0 < $(BUILDER_SRC_DIR)/build/builders.d/srtp.patch
+
+$(BUILDER_BUILD_DIR)/$(srtp_dir)/Makefile: $(BUILDER_SRC_DIR)/$(srtp_dir)/configure
+	mkdir -p $(BUILDER_BUILD_DIR)/$(srtp_dir)
+	cd $(BUILDER_BUILD_DIR)/$(srtp_dir)/\
+	&& CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
+	$(BUILDER_SRC_DIR)/$(srtp_dir)/configure -prefix=$(prefix) --host=$(host) ${library_mode}
+
+build-srtp: $(BUILDER_BUILD_DIR)/$(srtp_dir)/Makefile
+	cp -rf $(BUILDER_SRC_DIR)/$(srtp_dir)/include $(BUILDER_BUILD_DIR)/$(srtp_dir)
+	cp -rf $(BUILDER_SRC_DIR)/$(srtp_dir)/crypto/include $(BUILDER_BUILD_DIR)/$(srtp_dir)
+	-cd $(BUILDER_BUILD_DIR)/$(srtp_dir) && make uninstall && make clean
+	cd $(BUILDER_BUILD_DIR)/$(srtp_dir) && make libsrtp.a && make install
+
+clean-srtp:
+	cd $(BUILDER_BUILD_DIR)/$(srtp_dir)  && make clean
+
+veryclean-srtp:
+	-cd $(BUILDER_BUILD_DIR)/$(srtp_dir) && make distclean
+
+clean-makefile-srtp:
+	cd $(BUILDER_BUILD_DIR)/$(srtp_dir) && rm -f Makefile
+
diff --git a/submodules/build/builders.d/srtp.patch b/submodules/build/builders.d/srtp.patch
new file mode 100644
index 000000000..c3d127b13
--- /dev/null
+++ b/submodules/build/builders.d/srtp.patch
@@ -0,0 +1,24 @@
+diff -rupN ../srtp_old/crypto/cipher/aes_icm.c ./crypto/cipher/aes_icm.c
+--- ../srtp_old/crypto/cipher/aes_icm.c	2006-03-16 18:11:29.000000000 +0100
++++ ./crypto/cipher/aes_icm.c	2011-09-06 10:19:16.000000000 +0200
+@@ -281,7 +281,7 @@ aes_icm_set_iv(aes_icm_ctx_t *c, void *i
+  * this is an internal, hopefully inlined function
+  */
+   
+-inline void
++static void
+ aes_icm_advance_ismacryp(aes_icm_ctx_t *c, uint8_t forIsmacryp) {
+   /* fill buffer with new keystream */
+   v128_copy(&c->keystream_buffer, &c->counter);
+diff -rupN ../srtp_old/crypto/math/datatypes.c ./crypto/math/datatypes.c
+--- ../srtp_old/crypto/math/datatypes.c	2005-10-08 18:38:06.000000000 +0200
++++ ./crypto/math/datatypes.c	2011-09-06 10:02:55.000000000 +0200
+@@ -124,7 +124,7 @@ octet_string_hex_string(const void *s, i
+   return bit_string;
+ }
+ 
+-inline int
++static int
+ hex_char_to_nibble(uint8_t c) {
+   switch(c) {
+   case ('0'): return 0x0;
diff --git a/submodules/build/builders.d/x264.mk b/submodules/build/builders.d/x264.mk
index eb6d1d086..a07f3bf3a 100644
--- a/submodules/build/builders.d/x264.mk
+++ b/submodules/build/builders.d/x264.mk
@@ -39,7 +39,12 @@ ifneq (,$(findstring armv7,$(host)))
 endif
 
 x264_dir?=externals/x264
-$(BUILDER_BUILD_DIR)/$(x264_dir)/configure:
+$(BUILDER_SRC_DIR)/$(x264_dir)/patched :
+	cd $(BUILDER_SRC_DIR)/$(x264_dir) \
+	&& git apply $(BUILDER_SRC_DIR)/build/builders.d/x264.patch \
+	&& touch $(BUILDER_SRC_DIR)/$(x264_dir)/patched
+
+$(BUILDER_BUILD_DIR)/$(x264_dir)/configure: $(BUILDER_SRC_DIR)/$(x264_dir)/patched
 	mkdir -p $(BUILDER_BUILD_DIR)/$(x264_dir)
 	cd $(BUILDER_BUILD_DIR)/$(x264_dir)/ \
 	&& rsync -av --exclude ".git"  $(BUILDER_SRC_DIR)/$(x264_dir)/* . 
diff --git a/submodules/build/builders.d/x264.patch b/submodules/build/builders.d/x264.patch
new file mode 100644
index 000000000..e6781e304
--- /dev/null
+++ b/submodules/build/builders.d/x264.patch
@@ -0,0 +1,12 @@
+diff --git a/common/arm/asm.S b/common/arm/asm.S
+index 8e70403..259bb92 100644
+--- a/common/arm/asm.S
++++ b/common/arm/asm.S
+@@ -47,6 +47,7 @@ ELF     .eabi_attribute 25, \val
+         .endm
+ 
+         .macro function name
++	.align 2
+         .global EXTERN_ASM\name
+ EXTERN_ASM\name:
+ ELF     .hidden \name
diff --git a/submodules/build/builders.d/zrtp.mk b/submodules/build/builders.d/zrtp.mk
new file mode 100644
index 000000000..6b988fd6e
--- /dev/null
+++ b/submodules/build/builders.d/zrtp.mk
@@ -0,0 +1,38 @@
+$(BUILDER_SRC_DIR)/$(zrtpcpp_dir)/CMakeLists.txt.tracker: $(BUILDER_SRC_DIR)/build/builders.d/zrtpcpp.CMakeLists.txt
+	cp $(BUILDER_SRC_DIR)/build/builders.d/zrtpcpp.CMakeLists.txt $(BUILDER_SRC_DIR)/$(zrtpcpp_dir)/CMakeLists.txt
+
+
+#I coudn't manage to crosscompile using only -D arguments to cmake
+#Thus the use of a toolchain file.
+$(BUILDER_BUILD_DIR)/$(zrtpcpp_dir)/Makefile: $(BUILDER_SRC_DIR)/$(zrtpcpp_dir)/CMakeLists.txt.tracker
+	mkdir -p $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir)
+	cd $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir)/\
+        && host_alias=$(host) . $(BUILDER_SRC_DIR)/build/$(config_site) \
+        && cmake $(BUILDER_SRC_DIR)/$(zrtpcpp_dir) -Denable-ccrtp=false -DCMAKE_TOOLCHAIN_FILE=$(BUILDER_SRC_DIR)build/iphone-toolchain.cmake  \
+	-LH -Wdev -DCMAKE_C_COMPILER=$$SDK_BIN_PATH/gcc -DCMAKE_CXX_COMPILER=$$SDK_BIN_PATH/g++ \
+	-DCMAKE_SYSTEM_PROCESSOR=$$ARCH -DCMAKE_C_FLAGS="$$COMMON_FLAGS" -DCMAKE_CXX_FLAGS="$$COMMON_FLAGS" \
+	-DCMAKE_INSTALL_PREFIX=$(prefix) -DCMAKE_FIND_ROOT_PATH="$(prefix)"
+# Used toolchain: $(TC)
+
+ifeq ($(enable_zrtp),yes)
+
+build-zrtpcpp: $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir)/Makefile
+	echo "Build ZRTP - prefix $(prefix)"
+	cd $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir) && make VERBOSE=1 && make install
+
+else
+build-zrtpcpp:
+	echo "Build of zrtpcpp disabled"
+endif
+
+clean-zrtpcpp:
+	-cd $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir) && make clean
+
+clean-makefile-zrtpcpp: clean-zrtpcpp
+	-rm -f $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir)/Makefile
+	-rm -f $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir)/CMakeCache.txt
+
+veryclean-zrtpcpp:
+	-rm -rf $(BUILDER_BUILD_DIR)/$(zrtpcpp_dir)
+
+
diff --git a/submodules/build/builders.d/zrtpcpp.CMakeLists.txt b/submodules/build/builders.d/zrtpcpp.CMakeLists.txt
new file mode 100755
index 000000000..4f20891f6
--- /dev/null
+++ b/submodules/build/builders.d/zrtpcpp.CMakeLists.txt
@@ -0,0 +1,169 @@
+# Copyright (C) 2009 Werner Dittman
+#
+# This file is free software; as a special exception the author gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+cmake_minimum_required(VERSION 2.6)
+
+PROJECT(libzrtpcpp)
+
+SET(CPACK_PACKAGE_VERSION_MAJOR 2)
+SET(CPACK_PACKAGE_VERSION_MINOR 0)
+SET(CPACK_PACKAGE_VERSION_PATCH 0)
+
+set (VERSION 2.0.0)
+set (SOVERSION 2)
+set (PACKAGE libzrtpcpp)
+
+if(MSVC60)
+    set(BUILD_STATIC ON CACHE BOOL "static linking only" FORCE)
+    MARK_AS_ADVANCED(BUILD_STATIC)
+else()
+    option(BUILD_STATIC "Set to OFF to build shared libraries" ON)
+endif()
+
+# set to true for debug and trace during CMakeLists development
+set(CMAKE_VERBOSE_MAKEFILE FALSE)
+
+MESSAGE( STATUS "Configuring GNU ${PROJECT_NAME} ${VERSION}...")
+
+# include most of the fine stuff we need
+include(cmake/Modules/FindGcryptConfig.cmake)
+include(FindPkgConfig)
+include(CheckLibraryExists)
+include(CheckIncludeFiles)
+include(cmake/Modules/AutoArgs.cmake)
+
+if(${PROJECT_NAME} STREQUAL ${CMAKE_PROJECT_NAME})
+    include(cmake/Modules/GeneratePackage.cmake)
+
+    GENERATE_PACKAGING(${PACKAGE} ${VERSION})
+endif()
+
+# check the -Denable-ccrtp setting, defaults to true
+enable_arg(ccrtp true "Enable GNU ccRTP support for GNU ZRTP")
+args_help()
+
+# this caused problems in debian where it has to always be lib....
+set(LIBDIRNAME "lib")
+if (NOT EXISTS /etc/debian_version)
+    if ( "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64" )
+        set(LIBDIRNAME "lib64")
+    endif()
+endif()
+
+# setup the Thread include and lib
+find_package(Threads)
+if(CMAKE_HAVE_PTHREAD_H)
+  set(HAVE_PTHREAD_H TRUE)
+endif()
+set(LIBS ${LIBS} ${CMAKE_THREAD_LIBS_INIT})
+
+if(enable_ccrtp)
+    if (USES_CCRTP_INCLUDE_DIRS)
+        message(STATUS "  Using local commoncpp dependency")
+    else()
+        find_package(PkgConfig)
+        pkg_check_modules(USES_CCRTP libccrtp>=2.0.0)
+    endif()
+    include_directories(${USES_CCRTP_INCLUDE_DIRS})
+    link_directories(${USES_CRTP_LIBRARY_DIRS})
+    add_definitions(${USES_CCRTP_CFLAGS})
+    set (LIBS ${LIBS} ${USES_CCRTP_LDFLAGS} ${USES_CCRTP_LIBRARIES})
+endif()
+
+if (CMAKE_CROSSCOMPILING)
+  include_directories(${CMAKE_INSTALL_PREFIX}/include)
+  link_directories(${CMAKE_INSTALL_PREFIX}/lib)
+  set(CMAKE_REQUIRED_INCLUDES "${CMAKE_REQUIRED_INCLUDES} ${CMAKE_INSTALL_PREFIX}/include")
+##  set(CMAKE_REQUIRED_LIBRARIES "${CMAKE_INSTALL_PREFIX}/lib/*")
+endif()
+
+
+# now get info about crypto libraries
+gcr_check(GCRYPT gcrypt)
+#if(GCRYPT_FOUND)
+#  check_include_files(gcrypt.h HAVE_GCRYPT_H)
+#  set(LIBS ${LIBS} ${GCRYPT_LIBRARIES})
+#  set(BUILD_REQ "libgcrypt-devel")
+#  set(CRYPTOBACKEND="")
+#  set(PACKAGE_REQ "libgcrypt")
+#else()
+  pkg_check_modules(OPENSSL libcrypto>=0.9.8)
+  if (OPENSSL_FOUND)
+    check_include_files(openssl/bn.h HAVE_OPENSSL_BN_H)
+    check_include_files(openssl/aes.h HAVE_OPENSSL_AES_H)
+    check_include_files(openssl/sha.h HAVE_OPENSSL_SHA_H)
+    set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -lcrypto")
+    check_library_exists(crypto EVP_CipherInit_ex "${CMAKE_INSTALL_PREFIX}/lib" HAVE_SSL_CRYPT)
+# don't test HAVE_SSL_CRYPT_FOUND as it doesn't work
+    if (HAVE_OPENSSL_BN_H_FOUND)
+# AND HAVE_OPENSSL_AES_H_FOUND AND HAVE_OPENSSL_SHA_H_FOUND))
+      message(FATAL_ERROR "Openssl crypto library not found")
+    endif()
+    set(LIBS ${LIBS} -lcrypto)
+    set(CRYPTOBACKEND "libcrypto >= 0.9.8")
+    set(BUILD_REQ "libopenssl-devel >= 0.9.8")
+    set(PACKAGE_REQ "libopenssl >= 0.9.8")
+  else()
+    message(FATAL_ERROR "No crypto library found")
+  endif()
+#endif()
+
+check_include_files(stdlib.h HAVE_STDLIB_H)
+check_include_files(string.h HAVE_STRING_H)
+
+# necessary and required modules checked, ready to generate config.h
+configure_file(config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h)
+
+# the following set(...) commands are only to have backward
+# compatibility with autoconf stuff to generate the pc file
+set(prefix ${CMAKE_INSTALL_PREFIX})
+set(exec_prefix ${prefix}/bin)
+set(libdir ${prefix}/lib)
+set(includedir ${prefix}/include)
+set(PACKAGE pkgconfig)
+configure_file(libzrtpcpp.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/libzrtpcpp.pc @ONLY)
+
+configure_file(libzrtpcpp.spec.cmake ${CMAKE_CURRENT_BINARY_DIR}/libzrtpcpp.spec @ONLY)
+
+include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/src)
+
+add_definitions(-g -O2 -fno-strict-aliasing)
+if(CMAKE_COMPILER_IS_GNUCXX)
+  add_definitions(-Wno-long-long -Wno-char-subscripts)
+  add_definitions(-Wall -ansi -pedantic)
+  add_definitions(-DNEW_STDCPP)
+#  add_definitions(-D__EXPORT=)
+endif()
+
+add_subdirectory(src)
+
+if (enable_ccrtp)
+	add_subdirectory(demo)
+endif()
+
+if (NOT EXISTS ${CMAKE_CURRENT_BINARY_DIR}/package/)
+    MESSAGE(STATUS "package dir not found")
+    file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/package/)
+endif()
+
+########### install files ###############
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libzrtpcpp.pc DESTINATION ${LIBDIRNAME}/pkgconfig)
+
+if(${PROJECT_NAME} STREQUAL ${CMAKE_PROJECT_NAME})
+
+    ########### Add uninstall target ###############
+    configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+    IMMEDIATE @ONLY)
+    add_custom_target(uninstall
+    "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
+
+endif()
diff --git a/submodules/build/iphone-config.site b/submodules/build/iphone-config.site
index 62cf28585..6ab8723a3 100644
--- a/submodules/build/iphone-config.site
+++ b/submodules/build/iphone-config.site
@@ -1,32 +1,38 @@
 # -*- shell-script -*-
 
-GCC_VERSION=4.2
 SDK_VERSION_MAJOR=4
 SDK_VERSION=4.0
-
+MCPU=""
 if test "${host_alias}" = "i386-apple-darwin" ; then 
 	PLATFORM=Simulator
 	ARCH=i386
+	CMAKE_OPTS="-DCMAKE_SYSTEM_PROCESSOR=i386"
+	MCPU=""
 elif test "${host_alias}" = "armv6-apple-darwin" ; then 
 	ARCH=armv6
 	PLATFORM=OS
+	CMAKE_OPTS="-DCMAKE_SYSTEM_PROCESSOR=arm"
+	MCPU="-mcpu=arm1176jzf-s"
 elif test "${host_alias}" = "armv7-apple-darwin" ; then 
 	ARCH=armv7
 	PLATFORM=OS
+	CMAKE_OPTS="-DCMAKE_SYSTEM_PROCESSOR=arm"
+	MCPU="-mcpu=cortex-a8"
 else 
 	echo "bad host ${host_alias} must be either i386-apple-darwin or armv6-apple-darwin"
 	exit
 fi
 echo "Loading config.site for iPhone platform=${PLATFORM} version=${SDK_VERSION}"
 
-SDK_PATH_LIST=`ls -drt /Developer/Platforms/iPhone${PLATFORM}.platform/Developer/SDKs/iPhone${PLATFORM}4*`
+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     
 for SYSROOT_PATH in $SDK_PATH_LIST ; do echo $SYSROOT_PATH ; done ;
 echo "Selecting SDK path = ${SYSROOT_PATH}"
-CC="${SDK_BIN_PATH}/gcc-${GCC_VERSION} -std=c99 -arch ${ARCH} -isysroot ${SYSROOT_PATH} -miphoneos-version-min=${SDK_VERSION} -DTARGET_OS_IPHONE"
-OBJC="${SDK_BIN_PATH}/gcc-${GCC_VERSION} -std=c99 -arch ${ARCH} -isysroot ${SYSROOT_PATH} -miphoneos-version-min=${SDK_VERSION} -DTARGET_OS_IPHONE"
-CXX="${SDK_BIN_PATH}/g++-${GCC_VERSION} -arch ${ARCH} -isysroot ${SYSROOT_PATH} -miphoneos-version-min=${SDK_VERSION} -DTARGET_OS_IPHONE"
-LD="${SDK_BIN_PATH}/ld-${GCC_VERSION} -arch ${ARCH}"
+COMMON_FLAGS=" -arch ${ARCH} ${MCPU} -isysroot ${SYSROOT_PATH} -miphoneos-version-min=${SDK_VERSION} -DTARGET_OS_IPHONE -D__IOS"
+CC="${SDK_BIN_PATH}/gcc -std=c99 $COMMON_FLAGS"
+OBJC="${SDK_BIN_PATH}/gcc -std=c99 $COMMON_FLAGS"
+CXX="${SDK_BIN_PATH}/g++ $COMMON_FLAGS"
+LD="${SDK_BIN_PATH}/ld -arch ${ARCH}"
 AR=${SDK_BIN_PATH}/ar
 RANLIB=${SDK_BIN_PATH}/ranlib
 
diff --git a/submodules/build/iphone-toolchain.cmake b/submodules/build/iphone-toolchain.cmake
new file mode 100644
index 000000000..d7add3c91
--- /dev/null
+++ b/submodules/build/iphone-toolchain.cmake
@@ -0,0 +1,6 @@
+SET (CMAKE_SYSTEM_NAME      "Generic")
+SET (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM  NEVER)
+SET (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY  ONLY)
+SET (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE  ONLY)
+
+
diff --git a/submodules/build/iphone-toolchain.cmake.i386 b/submodules/build/iphone-toolchain.cmake.i386
new file mode 100644
index 000000000..0c7c1a5e5
--- /dev/null
+++ b/submodules/build/iphone-toolchain.cmake.i386
@@ -0,0 +1,13 @@
+SET (CMAKE_SYSTEM_NAME      "Generic")
+SET (CMAKE_SYSTEM_PROCESSOR "i386")
+
+SET (SDKVER     "4.3")
+SET (DEVROOT    "/Developer/Platforms/iPhoneOS.platform/Developer")
+SET (SDKROOT    "${DEVROOT}/SDKs/iPhoneOS${SDKVER}.sdk")
+
+SET (CMAKE_FIND_ROOT_PATH "${CMAKE_INSTALL_PREFIX}" "${SDKROOT}" "${DEVROOT}")
+SET (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM  NEVER)
+SET (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY  ONLY)
+SET (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE  ONLY)
+
+
diff --git a/submodules/externals/libvpx b/submodules/externals/libvpx
index 6f9457ec1..4341e5af6 160000
--- a/submodules/externals/libvpx
+++ b/submodules/externals/libvpx
@@ -1 +1 @@
-Subproject commit 6f9457ec12a98b3aceefbcb79783c084268d0b36
+Subproject commit 4341e5af66c92531fcd3f3e66ac18e70b3752ca9
diff --git a/submodules/externals/osip b/submodules/externals/osip
index c27b9b670..9e8c64cff 160000
--- a/submodules/externals/osip
+++ b/submodules/externals/osip
@@ -1 +1 @@
-Subproject commit c27b9b6702f62cdbd2143c1ccc85b8980b83adac
+Subproject commit 9e8c64cff496d2794fe352a6a3907e0e36988931
diff --git a/submodules/externals/x264 b/submodules/externals/x264
index 08d04a4d3..926a03a9c 160000
--- a/submodules/externals/x264
+++ b/submodules/externals/x264
@@ -1 +1 @@
-Subproject commit 08d04a4d30b452faed3b763528611737d994b30b
+Subproject commit 926a03a9c1f48d0fbd54b0e802d740774c100a78
diff --git a/submodules/externals/zrtpcpp b/submodules/externals/zrtpcpp
new file mode 160000
index 000000000..3cbbcf29f
--- /dev/null
+++ b/submodules/externals/zrtpcpp
@@ -0,0 +1 @@
+Subproject commit 3cbbcf29f707adaaa00958c6e2c321e79a7b8e83
diff --git a/submodules/linphone b/submodules/linphone
index 74f649291..6566c1179 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit 74f64929191e62f473ddcd232c92c85f7d2a7fb0
+Subproject commit 6566c1179c6c30a4f436e71a6a2d4080f1609098
diff --git a/submodules/msx264 b/submodules/msx264
index 2f4b56078..6ba1b8699 160000
--- a/submodules/msx264
+++ b/submodules/msx264
@@ -1 +1 @@
-Subproject commit 2f4b56078405d960c3201e57c985af167ff03e2e
+Subproject commit 6ba1b86990d60f1a29d11a4e0cdd71d7b6b1b5bf