| Easily adjust the volume of ringing, Paging, and other features. |
There are nine steps in the Volume Control adjustment range. This makes it easier for the keyset user to set up just the right volume levels. The settings a user makes are retained after a system reset or power-down.
The volume control presets allow the keyset user to preset the default volume for Ringing, Off-Hook Ringing, and incoming Page announcements while their telephone is idle. Presets for the remaining volume controls are not required since the user can easily adjust those volumes while idle. For example, to adjust the volume of Background Music, just press HOLD to active BGM and then adjust the volume.
While a keyset is idle, pressing Volume Up or Volume Down adjusts the contrast of the display. There are eight user-selectable contrast control values. The value a user sets is “remembered” by the system and automatically restored in the event of a power down or system reset.
The brightness and contrast control presets let the keyset user preset the default active brightness, idle brightness, and contrast for their keyset display. The brightness presets are not available to a 24-button key- set since it doesn’t offer a backlit display.