Automatic Speech Recognition (ASR) has been enabled on the UM auto attendant "%1". However, a required speech grammar file ...

Automatic Speech Recognition (ASR) has been enabled on the UM auto attendant "%1". However, a required speech grammar file wasn't found on the server. UM Speech grammar files are automatically created by the Mailbox server and might take up to 24 hours to be generated. Until this problem is corrected, ASR will be disabled for this auto attendant.