This sounds like defect CSCsa85454. The defect is corrected in a later version of code than 4.0(5). The next Unity release should have the fix. For now you can do the workaround listed in the release note.
Release note:
Symptom:
Unexpected errors occur when using the Cisco Unity Bulk
Import (CUBI) utility to import existing Active Directory
User or Contact objects as new Cisco Unity Subscribers or
Internet Subscribers.
Condition:
Cisco Unity 4.0(5). Errors may occur when the 'Active Directory'
operation is selected as the import method to use, and one of
the following conditions is true
a. One or more User or Contact objects selected for import on
the 'Select Data To Import' screen are not homed in the root
of the Container tree selected as the search root on the
'Select Domain and Container' screen.
b. The login account of the user running CUBI does not have
the necessary permissions to modify the objects.
c. One or more objects selected for import contain a comma in
the AD cn property value.
Workaround:
Use the Subscribers CSV file import operation, selecting 'Create
new Cisco Unity subscribers' and 'Use existing mailboxes and
accounts' options on the 'Select Subscriber Data Import Option'
screen. See the CUBI Help file for instructions using this method.
Thanks,
Keith
