thanks,Brian West  and Jason White. now it works fine.

On Tue, Jun 30, 2009 at 1:50 PM, Jason White <jason@jasonjgw.net> wrote:
jun yang <yj13535428332@gmail.com> wrote:
> now, a conference 3002 with several users in it.
> i want to record 3002 manually, but can't get the way.
> i have try  fs_cli use the command:
>     conference 3002 record /tmp/foo.wav
> it response: conference 3002 not found

You need to specify the full conference name, including the domain.

conference list
will show you the full names of active conferences.