These feature bits control processing of messages the user can and cannot receive, as well as notification of the arrival of new messages. Several message sending capabilities require one or more of these feature bits in a recipient’s mailbox in order for messages to send properly.
| Bit | Description | Required | Incompatible |
|---|---|---|---|
| 039 | Notification tone when new message arrives | 047 | |
| 040 | Receive messages from other users | ||
| 041 | Receive messages from outside callers | 68, 121 | |
| 043 | Receive message of the day | ||
| 044 | Receive user distribution list messages | 040 | |
| 045 | Receive master distribution lists messages | 040 | |
| 046 | Announce receipt count at login | 050 | |
| 047 | Notification prompt when new msg arrives | 039 | |
| 088 | Receive urgent messages | ||
| 111-119 | Deny message receipts on line groups 1-9 | ||
| 127 | Deny receipt of messages before tutorial run | 070; 040 and/or 041 | |
| 173 | *Receive cut-through page notify receipt | 070, 075, and 171 or 172 | |
| 175 | Receive broadcast greeting | 161, 162 | |
| 179 | Receive broadcast name | ||
| 185 | *Receive wake-up call notification receipt | 015, 070 | |
| 190 | *Receive fax messages | 040 or 041 | |
| 198 | *Receive fax messages only | 190 | |
| 199 | *Auto-receipt for fax send | 020, 070, 095,190 | |
| 223 | Delay requested receipt for 24 hours | 020, 021, 050 | |
| 241 | Suppress broadcast forced receipt number | ||
| 279 | Enable TollSaver for outside caller leaving message | ||
| 286 | To allow Mailbox to accept calls without charge |