Caution: A change in the wrong registry key or an incorrect value entry can cause the server to malfunction. Before the registry is edited, confirm that you know how to restore it if a problem occurs. Refer to the Restoring topics in the Registry Editor Help. Note that a typical backup of the Cisco Unity server does not back up the registry. Also, note that for Cisco Unity failover, registry changes on one Cisco Unity server must be made manually on the other Cisco Unity server, because registry changes are not replicated. For questions about registry key settings changes, contact Cisco Technical Support.