When users connect to the voicemail tab in their web portal, they will see an error message:
The mailbox is (currently) not available.
As a workaround, users should connect to https://voicemail.chorus.ox.ac.uk to view their voicemail.
The issue has been raised to the maintainer, please check back here for updates.
If you wish to be notified directly, please raise an incident by emailling firstname.lastname@example.org and asking for the incident to be linked to problem 40000533