The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to resolve the caller ID "%1" to a user in Active Directory or to a personal contact. The recipient of the message was "%2". More information: "%3
The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to read information from the Active Directory ...
The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to read the Lync Server pool objects. ...
The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to read the permissions on the Exchange ...
The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to resolve the caller ID "%1" to a user ...
The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to resolve the caller ID "%1" to a user ...
The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to retrieve the custom prompt data for ...
The Microsoft Exchange Unified Messaging service on the Mailbox server wasn't able to retrieve the custom prompt data for ...
The Microsoft Exchange Unified Messaging service on the Mailbox server will look for the UM language pack in the {0} directory. ...
The Microsoft Exchange Unified Messaging service received an outbound call request for UM auto attendant "%1", but the telephone ...