--- include/ptclib/dtmf.h.old	2007-10-19 02:22:38.000000000 -0400
+++ include/ptclib/dtmf.h	2008-01-05 21:17:30.000000000 -0500
@@ -69,6 +69,7 @@
   public:
     PDTMFDecoder();
     PString Decode(const short * sampleData, PINDEX numSamples);
+    PString Decode(const void * buf, PINDEX bytes);
 
   protected:
     enum {