diff --git a/conf/autoload_configs/switch.conf.xml b/conf/autoload_configs/switch.conf.xml
index 05685eb4b7..bb485396c4 100644
--- a/conf/autoload_configs/switch.conf.xml
+++ b/conf/autoload_configs/switch.conf.xml
@@ -24,6 +24,8 @@
     <param name="loglevel" value="debug"/>
     <!--Try to catch any crashes that can be recoverable (in the context of a call)-->
     <param name="crash-protection" value="false"/>
+    <!--<param name="max_dtmf_duration" value="192000"/>-->
+    <!--<param name="default_dtmf_duration" value="8000"/>-->
     <param name="mailer-app" value="sendmail"/>
     <param name="mailer-app-args" value="-t"/>
     <param name="dump-cores" value="yes"/>