Does anyone know how to do this?
It used to be an option buried in the voicemail menu; but they changed the system a while back and now I can’t disable it.
The “help” only says:
Your Voicemail account will be deactivated after 60 days of inactivity (i.e. where no messages are deposited or retrieved).
But it relies on no one leaving a message for 60 days.
Having it off entirely is pretty handy though - mine will ring for about two minutes before it times out, so there’s never any rush to answer.