Index: firmware/App/Controllers/DialOutFlow.c
===================================================================
diff -u -rcce9dc093c569089e29b52faffceb2701469a7cd -re64816def7cd98e7dcb6d133b3a56c9fea835af3
--- firmware/App/Controllers/DialOutFlow.c	(.../DialOutFlow.c)	(revision cce9dc093c569089e29b52faffceb2701469a7cd)
+++ firmware/App/Controllers/DialOutFlow.c	(.../DialOutFlow.c)	(revision e64816def7cd98e7dcb6d133b3a56c9fea835af3)
@@ -15,7 +15,7 @@
 *
 ***************************************************************************/
 
-#include <math.h>
+#include <math.h>   // Using fabs() function
 
 #include "etpwm.h"
 #include "gio.h"