How much work is this, anyway?

There's not much maintenance you'll have to do once you've set up your voice mailboxes.  You do need to decide whether to transfer your organization's current phone number or get a new local or toll-free number.  You'll want to make sure your main greeting and any individual mailbox greetings are recorded, or if you want a mailbox without a greeting, it's configured correctly as well.  And you want to learn the different ways you can access your mailbox messages.

The only other thing you'll need to learn is how to delete your messages.