diff --git a/jni/pjproject-android/pjlib/include/pj/unicode.h b/jni/pjproject-android/pjlib/include/pj/unicode.h
new file mode 100644
index 0000000..8da448a
--- /dev/null
+++ b/jni/pjproject-android/pjlib/include/pj/unicode.h
@@ -0,0 +1,141 @@
+/* $Id: unicode.h 4537 2013-06-19 06:47:43Z riza $ */
+/* 
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * 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 
+ */
+#ifndef __PJ_UNICODE_H__
+#define __PJ_UNICODE_H__
+
+#include <pj/types.h>
+
+
+/**
+ * @defgroup PJ_UNICODE Unicode Support
+ * @ingroup PJ_MISC
+ * @{
+ */
+
+PJ_BEGIN_DECL
+
+
+/**
+ * @file unicode.h
+ * @brief Provides Unicode conversion for Unicode OSes
+ */
+
+/**
+ * Convert ANSI strings to Unicode strings.
+ *
+ * @param str		    The ANSI string to be converted.
+ * @param len		    The length of the input string.
+ * @param wbuf		    Buffer to hold the Unicode string output.
+ * @param wbuf_count	    Buffer size, in number of elements (not bytes).
+ *
+ * @return		    The Unicode string, NULL terminated.
+ */
+PJ_DECL(wchar_t*) pj_ansi_to_unicode(const char *str, int len,
+				     wchar_t *wbuf, int wbuf_count);
+
+
+/**
+ * Convert Unicode string to ANSI string.
+ *
+ * @param wstr		    The Unicode string to be converted.
+ * @param len		    The length of the input string.
+ * @param buf		    Buffer to hold the ANSI string output.
+ * @param buf_size	    Size of the output buffer.
+ *
+ * @return		    The ANSI string, NULL terminated.
+ */
+PJ_DECL(char*) pj_unicode_to_ansi(const wchar_t *wstr, pj_ssize_t len,
+				  char *buf, int buf_size);
+
+
+#if defined(PJ_NATIVE_STRING_IS_UNICODE) && PJ_NATIVE_STRING_IS_UNICODE!=0
+
+/**
+ * This macro is used to declare temporary Unicode buffer for ANSI to 
+ * Unicode conversion, and should be put in declaration section of a block.
+ * When PJ_NATIVE_STRING_IS_UNICODE macro is not defined, this 
+ * macro will expand to nothing.
+ */
+#   define PJ_DECL_UNICODE_TEMP_BUF(buf,size)   wchar_t buf[size];
+
+/**
+ * This macro will convert ANSI string to native, when the platform's
+ * native string is Unicode (PJ_NATIVE_STRING_IS_UNICODE is non-zero).
+ */
+#   define PJ_STRING_TO_NATIVE(s,buf,max)	pj_ansi_to_unicode( \
+						    s, strlen(s), \
+						    buf, max)
+
+/**
+ * This macro is used to declare temporary ANSI buffer for Unicode to 
+ * ANSI conversion, and should be put in declaration section of a block.
+ * When PJ_NATIVE_STRING_IS_UNICODE macro is not defined, this 
+ * macro will expand to nothing.
+ */
+#   define PJ_DECL_ANSI_TEMP_BUF(buf,size)	char buf[size];
+
+
+/**
+ * This macro will convert Unicode string to ANSI, when the platform's
+ * native string is Unicode (PJ_NATIVE_STRING_IS_UNICODE is non-zero).
+ */
+#   define PJ_NATIVE_TO_STRING(cs,buf,max)	pj_unicode_to_ansi( \
+						    cs, wcslen(cs), \
+						    buf, max)
+
+#else
+
+/**
+ * This macro is used to declare temporary Unicode buffer for ANSI to 
+ * Unicode conversion, and should be put in declaration section of a block.
+ * When PJ_NATIVE_STRING_IS_UNICODE macro is not defined, this 
+ * macro will expand to nothing.
+ */
+#   define PJ_DECL_UNICODE_TEMP_BUF(var,size)
+/**
+ * This macro will convert ANSI string to native, when the platform's
+ * native string is Unicode (PJ_NATIVE_STRING_IS_UNICODE is non-zero).
+ */
+#   define PJ_STRING_TO_NATIVE(s,buf,max)	((char*)s)
+/**
+ * This macro is used to declare temporary ANSI buffer for Unicode to 
+ * ANSI conversion, and should be put in declaration section of a block.
+ * When PJ_NATIVE_STRING_IS_UNICODE macro is not defined, this 
+ * macro will expand to nothing.
+ */
+#   define PJ_DECL_ANSI_TEMP_BUF(buf,size)
+/**
+ * This macro will convert Unicode string to ANSI, when the platform's
+ * native string is Unicode (PJ_NATIVE_STRING_IS_UNICODE is non-zero).
+ */
+#   define PJ_NATIVE_TO_STRING(cs,buf,max)	((char*)(const char*)cs)
+
+#endif
+
+
+
+PJ_END_DECL
+
+/*
+ * @}
+ */
+
+
+#endif	/* __PJ_UNICODE_H__ */