a message to another mailbox, appending your own comments at the end. To save messages for future reference. To delete messages. To control message playback by rewinding, backing up in- crementally, advancing incrementally, pausing, and/or changing the speed or volume. To skip over messages. To retrieve deleted messages before hanging up. The mailbox owner may also have the capability to: Change passwords and personalize greetings. Toggle among multiple greetings (vacation, on the telephone, out of the office, etc.). Verify delivery of messages to other mailboxes on the same system. Check the status of the mailbox (full, empty, etc.). Set up group distribution lists for broadcasting a message to a preselected group of mailboxes. The Telecom Handbook 12 103 VOICE MAIL & AUTOMATED ATTENDANT Other Voice Mail Features Message waiting indication. A Voice Mail system working in conjunction with a PBX can activate a message waiting lamp or indicator on the telephone of the mailbox owner. If there is no capability for this, the Voice Mail may periodi- cally ring the telephone to indicate a waiting message or provide a distinctive stutter dial tone, heard when the tele- phone is next used. Some Voice Mail systems can call a beeper number. (You would be beeped to indicate that there is a message in your Voice Mailbox.) Message delivery options. This enables the mailbox owner to have his messages follow him around. It is possible to pro- gram the system to forward messages to different telephone numbers at different times of the day. Guest mailboxes. You may elect to have individuals outside of your company (guests) have a mailbox in your Voice Mail system (e.g., consultants, subcontractors, attorneys, accoun- tants). The guests can send messages to mailbox owners on the system and receive messages from them. If you plan to use guest mailboxes, make this clear when you are setting up the system. You may need to assign corresponding extension numbers from the PBX. Voice Mail Administration Another consideration with a Voice 