JasonPetty,
Did you mean a CS controller or a CX controller? A CS controller is a MiVO-250, but a CX is an MCD-3300.
If it is a CS controller you will need to trace the call flow manually. When a call comes in does it go directly to the Operator's extension or does it go to a CRA or directly to a Hunt Group?
My guess is that it goes directly to the Operator's extension and their system forwarding handles how to route the call based on the phone's state. Look at the System Forwarding Paths for Day and Night on your Operator's extension and see if the DND is check for any of the forwarding paths.
Thanks,
TE