These feature bits control use of the Email interface or the text counter. Other applications can use the text counter; for example, a hotel can use the text counter to show physical (written) messages waiting for a guest. The Email interface is optional.
| Bit | Description | Required | Incompatible |
|---|---|---|---|
| 154 | Announce text (Email) message count | 217 | |
| 170 | Transfer to Email System | 004, 005, 176 | |
| 184 | Append mailbox number to transfer | ||
| 205 | Do not use text count for message waiting | ||
| 217 | Announce text messages without count | 154 | |
| 220 | No dial extension or Email if unplayed messages | 170 | |
| 221 | Deny caller transfer to Email | 170 | 176 |
| 224 | Auto-transfer to task before greeting | 170 | |
| 225 | Auto-transfer to task upon login | 170 | |
| 226 | Auto-transfer to task after unplayed messages | 170 |