Deployment Recommendations
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* Based on existing VOSS-4-UC provisioning workflow capabilities, we strongly
  recommend that you employ the LDAP Search feature for UDS. This provides many
  ancillary benefits such as reduced upgrade and data sync times, as well as smaller
  DB backups.
* If this method is unacceptable for the customer environment, consider an alternative
  option for Bottom-Up Sync use cases, as described in the User Integration section.
* If the local CUCM database does not contain a global directory, then 3rd-Party
  Integrations, for example CUAC, needing to search all users, require an LDAP
  integration not just a CCM Integration. CUAC, for example, supports integrating
  to a CCM database and a single LDAP bind, so take care to support the global
  directory from the Attendant Console.