Where is the Auto Attendant option?

[isuthe]

I have a IP Office R6 configuration that I have been working on for some time. Somehow, the Auto Attendant item has disappeared from my list of options (i.e. System, Line, Control Unit, Extension, etc.). If I do a default configuration, the Auto Attendant option appears in the list.

Have I corrupted my configuration somehow? Is there a way to fix it without starting from a default config?

[thiel2]

On the System | Voicemail tab, did the Voicemail Type get changed to something other than Embedded Voicemail?