diff --git a/jni/pjproject-android/third_party/ilbc/getCBvec.h b/jni/pjproject-android/third_party/ilbc/getCBvec.h
new file mode 100644
index 0000000..0080907
--- /dev/null
+++ b/jni/pjproject-android/third_party/ilbc/getCBvec.h
@@ -0,0 +1,25 @@
+
+   /******************************************************************
+
+       iLBC Speech Coder ANSI-C Source Code
+
+       getCBvec.h
+
+       Copyright (C) The Internet Society (2004).
+       All Rights Reserved.
+
+   ******************************************************************/
+
+   #ifndef __iLBC_GETCBVEC_H
+   #define __iLBC_GETCBVEC_H
+
+   void getCBvec(
+       float *cbvec,   /* (o) Constructed codebook vector */
+       float *mem,     /* (i) Codebook buffer */
+       int index,      /* (i) Codebook index */
+       int lMem,       /* (i) Length of codebook buffer */
+       int cbveclen/* (i) Codebook vector length */
+   );
+
+   #endif
+