| A | B |
| 73 | Forward message to another extension |
| 71 | Reply to message's sender |
| 75 | Compose a new message |
| 79 | Send a message you have already composed |
| 76 | Delete a message |
| 83 | Exit from Meridian Mail; log off |
| 89 | Set you personal verification |
| 84 | Change your mailbox password |
| 82 | Begin to set your External Greeting |