The Microsoft Exchange Unified Messaging service on the Mailbox server couldn't find the prompts for the "%1" language pack. This language won't be available on this server until the problem is resolved. If the language pack has just been uninstalled, this problem may be caused by delays in directory replication and should correct itself. Otherwise, there may be a problem with the installation of the language pack and you should attempt to remove, and then reinstall it. Additional information: "%2"
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 ...
The Microsoft Exchange Unified Messaging service on the Mailbox server detected an error during contact resolution. To prevent ...