Exclude extensions with voicemail from "Company Directory"

Using Elastix and trying to setup extensions with voicemail that should be excluded from the company directory accessed from an IVR by pressing “#”. Is there a way to do this?

Thanks in advance -

Greg

see http://www.freepbx.org/forum/freepbx/users/remove-from-company-directory-not-working-in-2-3-0-3-trixbox-2-3-0-1#comment-7395