Migrating UM from Ex2010 to Ex2013. Following "Upgrade Exchange 2010 UM to Exchange 2013 UM". Can't get ExportUMPrompt to work.

I've tried the sample in the Upgrade Document and the sample in the technet for Export-UMPrompt.

Export-UMPrompt -PromptFileName "welcomegreeting.wav" -UMAutoAttendant MyUMAutoAttendant
set-content -Path "e:\UMPromptsBackup\welcomegreeting.wav" -Value $prompt.AudioData -Encoding Byte

and

$prompt = Export-UMPrompt -BusinessHoursWelcomeGreeting -UMAutoAttendant MyUMAutoAttendant
set-content -Path "d:\UMPrompts\BusinessHoursWelcomeGreeting.wav" -Value $prompt.AudioData -Encoding Byte

Niether of these work and I am at a loss.

I am in the UM Management Group. I run the PS as administrator.

I also noticed that typing: Export-UMPrompt -Busin (then hitting tab will not complete the parameter).

Any assitance would be appreciated.

Thanks,

        Mark