diff --git a/.gitmodules b/.gitmodules
index dd5b18727..b8d8bf450 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -40,3 +40,6 @@
 [submodule "submodules/externals/libvpx"]
 	path = submodules/externals/libvpx
 	url = http://git.chromium.org/webm/libvpx.git
+[submodule "submodules/externals/srtp"]
+	path = submodules/externals/srtp
+	url = git://git.linphone.org/srtp.git
diff --git a/jni/Android.mk b/jni/Android.mk
index 26eaa3408..9d1c9a05e 100755
--- a/jni/Android.mk
+++ b/jni/Android.mk
@@ -10,16 +10,16 @@ LINPHONE_VIDEO=0
 BUILD_X264=0
 endif
 
-
+BUILD_SRTP=1
 ##ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
 ifeq ($(BUILD_GPLV3_ZRTP), 1)
-BUILD_SRTP=1
 ZRTP_C_INCLUDE= \
 	$(linphone-root-dir)/submodules/externals/libzrtpcpp/src
 endif
 
 ifeq ($(BUILD_SRTP), 1)
 SRTP_C_INCLUDE= \
+	$(linphone-root-dir)/submodules/externals/srtp \
 	$(linphone-root-dir)/submodules/externals/srtp/include \
 	$(linphone-root-dir)/submodules/externals/srtp/crypto/include
 endif
diff --git a/res/raw/linphonerc b/res/raw/linphonerc
index b490f57df..c6d676668 100644
--- a/res/raw/linphonerc
+++ b/res/raw/linphonerc
@@ -18,6 +18,8 @@ default_proxy=0
 auto_net_state_mon=0
 keepalive_period=30000
 auto_answer_replacing_calls=1
+media_encryption=srtp
+media_encryption_mandatory=0
 
 [rtp]
 audio_rtp_port=7076
diff --git a/src/org/linphone/core/LinphoneCoreImpl.java b/src/org/linphone/core/LinphoneCoreImpl.java
index 4b3f9e99c..902ea9f4f 100644
--- a/src/org/linphone/core/LinphoneCoreImpl.java
+++ b/src/org/linphone/core/LinphoneCoreImpl.java
@@ -515,7 +515,7 @@ class LinphoneCoreImpl implements LinphoneCore {
 	public boolean isInConference() {
 		// TODO Auto-generated method stub
 		return false;
-	}
+	} 
 	public void leaveConference() {
 		// TODO Auto-generated method stub
 		
diff --git a/submodules/externals/build/srtp/Android.mk b/submodules/externals/build/srtp/Android.mk
index c047702cd..e9c85e1e0 100644
--- a/submodules/externals/build/srtp/Android.mk
+++ b/submodules/externals/build/srtp/Android.mk
@@ -26,7 +26,7 @@ LOCAL_SRC_FILES := \
 	 	 crypto/rng/ctr_prng.c \
 	 	 crypto/rng/prng.c 
 
-LOCAL_CFLAGS := -Wall -O4 -fexpensive-optimizations -funroll-loops -DCPU_CISC
+LOCAL_CFLAGS := -Wall -O4 -fexpensive-optimizations -funroll-loops -DCPU_CISC -include config.h
 
 ifeq ($(SRTP_USES_LINUX_KERNEL), 1)
 LOCAL_SRC_FILES += \
diff --git a/submodules/externals/build/srtp/config.h b/submodules/externals/build/srtp/config.h
new file mode 100644
index 000000000..52e6cd654
--- /dev/null
+++ b/submodules/externals/build/srtp/config.h
@@ -0,0 +1,171 @@
+/* crypto/include/config.h.  Generated by configure.  */
+/* config_in.h.  Generated from configure.in by autoheader.  */
+
+/* Define if building for a CISC machine (e.g. Intel). */
+#define CPU_CISC 1
+
+/* Define if building for a RISC machine (assume slow byte access). */
+/* #undef CPU_RISC */
+
+/* Path to random device */
+/* #undef DEV_URANDOM */
+
+/* Define to compile in dynamic debugging system. */
+#define ENABLE_DEBUGGING 0
+
+/* Report errors to this file. */
+/* #undef ERR_REPORTING_FILE */
+
+/* Define to use logging to stdout. */
+#define ERR_REPORTING_STDOUT 1
+
+/* Define this to use ISMAcryp code. */
+/* #undef GENERIC_AESICM */
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the <byteswap.h> header file. */
+/* #undef HAVE_BYTESWAP_H */
+
+/* Define to 1 if you have the `inet_aton' function. */
+#define HAVE_INET_ATON 1
+
+/* Define to 1 if the system has the type `int16_t'. */
+#define HAVE_INT16_T 1
+
+/* Define to 1 if the system has the type `int32_t'. */
+#define HAVE_INT32_T 1
+
+/* Define to 1 if the system has the type `int8_t'. */
+#define HAVE_INT8_T 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `socket' library (-lsocket). */
+/* #undef HAVE_LIBSOCKET */
+
+/* Define to 1 if you have the <machine/types.h> header file. */
+/*#define HAVE_MACHINE_TYPES_H 1*/
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the `socket' function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <syslog.h> header file. */
+#define HAVE_SYSLOG_H 1
+
+/* Define to 1 if you have the <sys/int_types.h> header file. */
+/* #undef HAVE_SYS_INT_TYPES_H */
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define HAVE_SYS_UIO_H 1
+
+/* Define to 1 if the system has the type `uint16_t'. */
+#define HAVE_UINT16_T 1
+
+/* Define to 1 if the system has the type `uint32_t'. */
+#define HAVE_UINT32_T 1
+
+/* Define to 1 if the system has the type `uint64_t'. */
+#define HAVE_UINT64_T 1
+
+/* Define to 1 if the system has the type `uint8_t'. */
+#define HAVE_UINT8_T 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the `usleep' function. */
+#define HAVE_USLEEP 1
+
+/* Define to 1 if you have the <windows.h> header file. */
+/* #undef HAVE_WINDOWS_H */
+
+/* Define to 1 if you have the <winsock2.h> header file. */
+/* #undef HAVE_WINSOCK2_H */
+
+/* Define to use X86 inlined assembly code */
+/* #undef HAVE_X86 */
+
+/* Define to the address where bug reports for this package should be sent. */
+/*#define PACKAGE_BUGREPORT ""*/
+
+/* Define to the full name of this package. */
+/*#define PACKAGE_NAME ""*/
+
+/* Define to the full name and version of this package. */
+/*#define PACKAGE_STRING ""*/
+
+/* Define to the one symbol short name of this package. */
+/*#define PACKAGE_TARNAME ""*/
+
+/* Define to the version of this package. */
+/*#define PACKAGE_VERSION ""*/
+
+/* The size of a `unsigned long', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_LONG 4
+
+/* The size of a `unsigned long long', as computed by sizeof. */
+#define SIZEOF_UNSIGNED_LONG_LONG 8
+
+/* Define to use GDOI. */
+/* #undef SRTP_GDOI */
+
+/* Define to compile for kernel contexts. */
+/* #undef SRTP_KERNEL */
+
+/* Define to compile for Linux kernel context. */
+/* #undef SRTP_KERNEL_LINUX */
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Write errors to this file */
+/* #undef USE_ERR_REPORTING_FILE */
+
+/* Define to use syslog logging. */
+/* #undef USE_SYSLOG */
+
+/* Define to 1 if your processor stores words with the most significant byte
+   first (like Motorola and SPARC, unlike Intel and VAX). */
+/* #undef WORDS_BIGENDIAN */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to `unsigned' if <sys/types.h> does not define. */
+/* #undef size_t */
diff --git a/submodules/externals/srtp b/submodules/externals/srtp
new file mode 160000
index 000000000..de53398a1
--- /dev/null
+++ b/submodules/externals/srtp
@@ -0,0 +1 @@
+Subproject commit de53398a1aa8f60a37bded8d6019649959e7b132
diff --git a/submodules/linphone b/submodules/linphone
index 3cb22b693..e83560115 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit 3cb22b69375f1bd759bc0bd365fecad0b553cced
+Subproject commit e835601158351ce465d0c401f83c82e595c63c1a