asterisk users - Dec 2011 - ConfBridge 10 How can I playback a soundfile to an existing conference

Hi,

i'm trying to periodically playback a sound to an existing conference
with ConfBridge on Asterisk 10.0.0-rc3

Previously with MeetMe I generated a callout file and had an matching
local dialplan entry.

But this does not work... The local channel gets joined to the
conference, is stuck there until kicked and no sound is played back.


CallerID: "TEST" <08154711>
Channel: Local/123 at patience/n
Context: patience
Extension: s
MaxRetries: 0
Priority: 1
WaitTime: 5


[patience]
exten => s,1,Answer()
same  =>   n,Playback(please-be-patient)
same  =>   n,Hangup()

exten => _X.,1,ConfBridge(${EXTEN})
same  =>     n,Hangup()