add callback option to voicemail (config(

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6007 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/voicemail.conf.xml

@@ -9,6 +9,8 @@
       <param name="digit-timeout" value="10000"/>
       <param name="max-record-len" value="300"/>
       <param name="tone-spec" value="%(1000, 0, 640)"/>
+      <param name="callback-dialplan" value="XML"/>
+      <param name="callback-context" value="default"/>
       <param name="terminator-key" value="#"/>
       <param name="play-new-messages-key" value="1"/>
       <param name="play-saved-messages-key" value="2"/>