two weeks ago I finished a project, using FreePBX to implement a multilanguage IVR menu, incl. Out-of-business-hour check, All-lines-busy check and voicemails for the departments, in our current Cisco UCM environment.
FreePBX is a great system, even easy and fun to use.
I have created a tutorial how to do it, maybe it can be interesting or helpful for others.
You can find it here:
no links allowd for new users
If somebody is interested, please let me know.