I'm encountering an issue where a custom recorded greeting (in .wav format) causes the error message "A system error occurred. Please try again later" when trying to leave a voicemail for the UM Mailbox that has been set with this custom greeting.
The application event logs on one of my UM servers is telling me that the file used for the custom greeting is not in a supported format. I am 100% certain that the file is in a .wav format which I understand is the only format Microsoft Exchange UM supports.
I see two entries in the event log
Log Name: Application
Source: MSExchange Unified Messaging
Event ID: 1079
Task Category: UMCore
Level: Warning
Keywords: Classic
Description:
The VoIP platform encountered an exception Microsoft.Exchange.Audio.UnsupportedAudioFormat: A file couldn't be converted for playback over the telephone: An error occurred while converting the D:\Program Files\Microsoft\Exchange Server\V15\UnifiedMessaging\temp\UMTempFiles\c268f46b-6138-414e-b151-2a4ba925acbf\4c380e36-a613-4dcb-98ba-d793f395c747.wma
audio file. The source audio file format is not correct..
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Log Name: Application
Source: MSExchange Unified Messaging
Event ID: 1159
Task Category: UMCore
Level: Warning
Keywords: Classic
Description:
The call with ID "ec052618a7814363879c7518dd898ba4" was disconnected by the Microsoft Exchange Unified Messaging service on the Mailbox server because of a system error.
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It's simple enough to remove the custom greeting which does fix this issue. The problem is we have about 80 mailboxes that need to use custom greetings which all have to be set and I hope to not have to ask my colleagues to record a custom message for all of them one at a time.
Thanks in advance.