# Category 4: Attendant Call Feature Bits

These feature bits control the process to reach an attendant. They allow the user or caller to call the mailbox attendant while logged into the mailbox, such as by pressing 0 (zero).

Bit | Description | Required | Incompatible
--- | --- | --- | ---
002 | Transfer to mailbox attendant | 004 |
013 | Operator Transfer via "6" key |  |
098 | Say “Press 0” to caller before beep |  |
159 | Say “Press 0 to return to Receptionist" |  |