i already asked this on the fs-users list. so i like to ask the developers if they can give me some hints. %< i like to setup conferences with some ambient music in the background. is there a background sound parameter? when i use the perpetual sound with local_stream its fine. but all the users have unmute themselve first. how can i do things with a user after he entered a conference? in the dialplan? via script? ... like unmuting him. a more general question is how to play no-sound for certain events. if there is something like: <param name="kicked-sound" value="conference/conf-kicked.wav"/> can i set it to something like: <param name="kicked-sound" value="nosound"/> ?? %< ... some more background about me ... i thought it is a really common setup to have conferences with backgroundchannels. by thinking deeper about the idea with queuebased conferencing and room-oriented ivr-system (voice-muds) i started the project blabla (but its still a on a very beginning) [python + yate] -- https://blabla.bountysource.com/ i also took part on the idea of VARE (virtual a rendering engines) which is hyperlinked conferencing. or a base for some "audio-web". http://blog.justdigits.de/?cat=11 <-- sorry german but basically a audiointerpretation of documents like http://justdigits.de/vare/Erdgeschoss.vare#S by some 16 channel mixer ontop of asterisk and xmpp. since 1 year i work on something called dialstation. which is php+rubyonrails+freeswitch. more about this can you see on my talk on asterisktag. [where i also announced the release of FreeSWITCH 1.0 ;-) ] http://www.asterisk-tag.org/wiki/Programm_27.05.2008_(Mixed_Track) thats for now. lets see who i meet here on this list. t.