| Set the telephone’s backlight brightness while it is active. |
| This option does not apply to 22-button keysets since they have neither backlit displays nor illuminated key pads. |
| Option | Description |
|---|---|
| 0 | Backlight off. |
| 1-8 | Relative brightness settings 1-8. [Default] = 8. |
| Set the telephone’s backlight brightness while it is idle. |
| This option does not apply to 22-button keysets since they have neither backlit displays nor illuminated key pads. |
| Option | Description |
|---|---|
| 0 | Backlight off. |
| 1-8 | Relative brightness settings 1-8. [Default] = 2. |
| Enable or Disable the key pad illumination. |
| This option does not apply to 22-button keysets since they have neither backlit displays nor illuminated key pads. |
| Option | Description |
|---|---|
| No (0) | Disabled. |
| Yes (1) | [Default] Enabled |
| Set the telephone’s backlight brightness while it is idle. |
| This option does not apply to 22-button keysets since they have neither backlit displays nor illuminated key pads. |
| Option | Description |
|---|---|
| 0 | Backlight off. |
| 1-8 | Relative brightness settings 1-8. [Default] = 2. |
| Set how long an extension must be idle before it reverts to its idle backlight brightness setting. |
| These options do not apply to 22-button keysets since they have neither backlit displays nor illuminated key pads. |
| Option | Description |
|---|---|
| 1-99 | Interval in seconds. [Default] = 6. |