diff --git a/submodules/build/Makefile b/submodules/build/Makefile
index 9c1e1499c..96df5837d 100644
--- a/submodules/build/Makefile
+++ b/submodules/build/Makefile
@@ -96,6 +96,12 @@ simu-%:
 arm64:
 	make -f builder-iphone-os.mk host=aarch64-apple-darwin $(LINPHONE_OPTIONS) V=1 VERBOSE=1
 
+x64:
+	make -f builder-iphone-os.mk host=x86_64-apple-darwin $(LINPHONE_OPTIONS)
+
+x64-%:
+	make -f builder-iphone-os.mk host=x86_64-apple-darwin $(LINPHONE_OPTIONS) $* V=1 VERBOSE=1
+
 
 # sends the target after 'broadcast_' to all sub-architectures (armv7, simu, arm64)
 broadcast_%:
diff --git a/submodules/build/builder-iphone-os.mk b/submodules/build/builder-iphone-os.mk
index f5a092f6f..e53426af9 100644
--- a/submodules/build/builder-iphone-os.mk
+++ b/submodules/build/builder-iphone-os.mk
@@ -38,7 +38,8 @@ linphone_configure_controls = \
 				--disable-x11 \
 				--disable-tutorials \
 				--disable-tools \
-				--enable-msg-storage=yes
+				--enable-msg-storage=yes \
+				--enable-ios
 
 
 #path
diff --git a/submodules/build/builders.d/belle-sip.mk b/submodules/build/builders.d/belle-sip.mk
index 085472d54..d7d1363f4 100644
--- a/submodules/build/builders.d/belle-sip.mk
+++ b/submodules/build/builders.d/belle-sip.mk
@@ -27,7 +27,7 @@ $(BUILDER_BUILD_DIR)/$(belle-sip_dir)/Makefile: $(BUILDER_SRC_DIR)/$(belle-sip_d
 	mkdir -p $(BUILDER_BUILD_DIR)/$(belle-sip_dir)
 	cd $(BUILDER_BUILD_DIR)/$(belle-sip_dir)/ \
 	&& PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site) \
-	$(BUILDER_SRC_DIR)/$(belle-sip_dir)/configure --prefix=$(prefix) --host=$(host) ${library_mode} --enable-tls --enable-tunnel --with-polarssl=$(prefix)
+	$(BUILDER_SRC_DIR)/$(belle-sip_dir)/configure --prefix=$(prefix) --host=$(host) ${library_mode} --enable-tls --enable-tunnel --with-polarssl=$(prefix) --enable-ios
 
 build-belle-sip: $(BUILDER_BUILD_DIR)/$(belle-sip_dir)/Makefile
 	cd $(BUILDER_BUILD_DIR)/$(belle-sip_dir) && PKG_CONFIG_LIBDIR=$(prefix)/lib/pkgconfig CONFIG_SITE=$(BUILDER_SRC_DIR)/build/$(config_site)  make && make install
diff --git a/submodules/build/iphone-config.site b/submodules/build/iphone-config.site
index 033e2bd0d..a8d100f1b 100644
--- a/submodules/build/iphone-config.site
+++ b/submodules/build/iphone-config.site
@@ -19,6 +19,11 @@ elif test "${host_alias}" = "aarch64-apple-darwin" ; then
 	ARCH=arm64
 	PLATFORM=OS
 	CMAKE_OPTS="-DCMAKE_SYSTEM_PROCESSOR=aarch64"
+elif test "${host_alias}" = "x86_64-apple-darwin" ; then 
+	ARCH=x86_64
+	PLATFORM=Simulator
+	CMAKE_OPTS="-DCMAKE_SYSTEM_PROCESSOR=x86_64"
+	CLANG_TARGET_SPECIFIER=mios-simulator-version-min
 else 
 	echo "bad host ${host_alias} must be either i386-apple-darwin or arm[v7,64]-apple-darwin"
 	exit