| Class | Description |
|---|---|
| Connection |
Connect a phone to the mail system.
|
| Mailbox |
A mailbox contains messages that can be listed, kept or discarded.
|
| MailSystem |
A system of voice mail boxes.
|
| MailSystemTester | |
| Message |
A message left by the caller.
|
| MessageQueue |
A first-in, first-out bounded collection of messages.
|
| Telephone |
Presents a phone GUI for the voice mail system.
|