The Microsoft Exchange Unified Messaging service on the Mailbox server received a Find-Me outbound call request from user ...

The Microsoft Exchange Unified Messaging service on the Mailbox server received a Find-Me outbound call request from user "%1", but the telephone number "%2" can't be dialed as specified. To correct this issue, make sure that you've correctly configured the dialing rules on the UM dial plan and the dialing restrictions on the UM mailbox policy that's associated with the user. Diagnostic information: "%3".