Overview This tutorial will show how you can customize the contrast level of the LCD Screen on a Cisco 7800 Series phone. By default the contrast is set to 50 percent. Adjust Contrast To adjust the Contrast, press the “…
Contrast
Last updated: April 2026
Reading time: ~2 min
Audience: Boxis customers and administrators.
What you'll accomplish
- Complete the configuration or task described in this guide for your Boxis service.
Prerequisites
- Access to the interface, device, or server described below.
- Information or credentials you received from Boxis (contract, welcome e-mail, or client area).
Note Boxis: Offers and screens may differ slightly depending on your product. When in doubt, open a support ticket with your service reference.
Overview
This tutorial will show how you can customize the contrast level of the LCD Screen on a Cisco 7800 Series phone. By default the contrast is set to 50 percent.
Adjust Contrast
To adjust the Contrast, press the “Applications” key. On the Navigation Key, use the Buttons to scroll and select Preferences. Select Contrast. Press the Navigation buttons up to increase or down to decrease contrast.
Adjust contrast through applications under preferences.
Set Contrast
Press the “Save” softkey to set the level or “Cancel” to exit.
Save or Cancel your changes.
Expected result
- The product behaves as described in each step (connectivity, message, or UI state).
If something goes wrong
- Repeat the step and check for typos (hostnames, passwords, ports).
- Note the exact error message or screenshot.
- Open a ticket in the Boxis client area with the service name, time of the test, and any trace (e.g. traceroute) if it is a network issue.
See also
- Other articles in the same category in the Boxis knowledge base.
/knowledgebase/— main knowledge base index.