The purpose of installing a talkback system is to enable communication between occupants in trouble zones and rescue support staff.
| # | Talkback | Function | Remarks |
|---|---|---|---|
| 1 | Device ID | ||
| 2 | Device location | ||
| 3 | Calling | ||
| 4 | Call acknowledgement at panel | ||
| 5 | Microphone | ||
| 6 | Speaker | ||
| 7 | LED | ||
| 8 | Call from panel | ||
| 9 | Call acknowledgement at speaker |