The Microsoft Exchange Unified Messaging service on the Mailbox server couldn't find a required file at the following path: "{0}".
The Microsoft Exchange Unified Messaging service on the Mailbox server can't accept any new calls because it's been disabled. ...
The Microsoft Exchange Unified Messaging service on the Mailbox server can't find a valid UM hunt group for "{0}" associated ...
The Microsoft Exchange Unified Messaging service on the Mailbox server can't process this request due to version incompatibility. ...
The Microsoft Exchange Unified Messaging service on the Mailbox server couldn't acquire credentials with the Lync Server ...
The Microsoft Exchange Unified Messaging service on the Mailbox server couldn't find a required file at the following path: ...
The Microsoft Exchange Unified Messaging service on the Mailbox server couldn't find the prompts for the "%1" language pack. ...
The Microsoft Exchange Unified Messaging service on the Mailbox server couldn't find the prompts for the "%1" language pack. ...
The Microsoft Exchange Unified Messaging service on the Mailbox server couldn't play a voice message over the phone because ...
The Microsoft Exchange Unified Messaging service on the Mailbox server deleted a message "%1" containing Voice Mail Preview ...