--- openh323gk/MakeCall.h	2007-12-18 17:10:53.000000000 -0800
+++ openh323gk/MakeCall.h.new	2007-12-26 00:24:16.000000000 -0800
@@ -16,6 +16,7 @@
 
 #include <ptlib.h>
 #include <h323.h>
+#include <ptlib/sound.h>
 #include "singleton.h"
 #include <map>
 using namespace std;