Hi I am trying to play different moh sound for each conference call by passing a variable to moh-sound from the dialplan to autoload_configs/conference.conf.xml In my dialplan/default.xml <extension name="conference_incoming"> <condition field="destination_number" expression="^(.*)$"> <action application="set" data="knowlus_hold_music=$1" /> <action application="conference" data="3001@default"/> <action application="hangup" /> </condition> </extension> In my autoload_configs/conference.conf.xml <param name="moh-sound" value="local_stream://${knowlus_hold_music}"/> However, it does not work. It is not able to expand the variable ${knowlus_hold_music} In the log 2012-02-15 19:55:31.195264 [WARNING] mod_local_stream.c:393 Unknown source ${knowlus_hold_music}, trying 'default' Is it even possible to pass a channel variable to a config file ? Or is there another way to achieve what I am trying to do ? Thanks. regards, Anita