On the Mitel 3300 The following mailbox types are available:
Extension Mailbox - the auto-attendant transfers a caller to the mailbox's associated
extension. If the called party is busy or does not answer, the caller is prompted
to leave a message in the mailbox. The extension mailbox may be linked to other
mailboxes for transfer only (dual mailboxes). This permits the caller to transfer to
other mailboxes in the same department.
Message-Only Mailbox - the auto-attendant does not attempt a transfer but immediately
prompts the caller to leave a message in the mailbox.
Transfer-Only Mailbox - the auto-attendant transfers a caller to the mailbox's associated
extension but does not take a message if the called party is busy or does not
answer.
Information-Only Mailbox - the auto-attendant only plays the mailbox greeting; no
transfer or prompt to leave a message occurs.
Administrator Mailbox - for accessing administrative functions such as greetings
recording.