--- src/Makefile.old	2009-09-12 23:26:39.000000000 +0200
+++ src/Makefile	2009-09-12 23:35:19.000000000 +0200
@@ -178,6 +178,7 @@
 endif
 
 ifdef HAS_VXML
+SOURCES	+= $(COMPONENT_SRC_DIR)/dtmf.cxx 
 SOURCES	+= $(COMPONENT_SRC_DIR)/vxml.cxx 
 endif