In Provisioning Manager, we currently support the phone filters "Unregistered", "Rejected", and "Unkown".
In CUCM there is another phone status as "Partial Registered." When doing a search within the Auto Delete phone configuration, the phones with "Partial Registered" appear in the result when using the "Unknown" phone filter option.
Samuel Araujo
Westfield Group is the client. From zendesk ticket #42406