Cisco Systems 8961 manual PNG File Requirements for Custom Background Images

Chapter 9 Customizing the Cisco Unified IP Phone

Creating Custom Background Images

PNG File Requirements for Custom Background Images

Each background image requires two PNG files:

•Full size image—Version that appears on the on the phone.

•Thumbnail image—Version that displays on the Background Images screen from which users can select an image. Must be 25% of the size of the full size image.

Tip Many graphics programs provide a feature that will resize a graphic. An easy way to create a thumbnail image is to first create and save the full size image, then use the sizing feature in the graphics program to create a version of that image that is 25% of the original size. Save the thumbnail version by using a different name.

The PNG files for background images must meet the following requirements for proper display on the Cisco Unified IP Phone:

•Full size image—640 pixels (width) X 480 pixels (height).

•Thumbnail image—123 pixels (width) X 111 pixels (height).

Tip If you are using a graphics program that supports a posterize feature for grayscale, set the number of tonal levels per channel to 16, and the image will posterize to 16 shades of grayscale.

Configuring a Custom Background Image

To create custom background images for the Cisco Unified IP Phone, follow these steps:

Procedure

Step 1 Create two PNG files for each image (a full size version and a thumbnail version). Ensure the PNG files comply with the format guidelines that are listed in the “PNG File Requirements for Custom Background Images” section on page 9-5.

Step 2 Upload the new PNG files that you created to the following subdirectory in the TFTP server for the Cisco Unified Communications Manager:

Desktops/640x480x24

Note The file name and subdirectory parameters are case sensitive. Be sure to use the forward slash “/” when you specify the subdirectory path.

To upload the files, choose Software Upgrades > Upload TFTP Server File in Cisco Unified Communications Operating System Administration. For more information, see the “Software Upgrades” chapter in Cisco Unified Communications Operating System Administration Guide.

Note If the folder does not exist, the folder gets created and the files get uploaded to the folder.

Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)

OL-20861-01 9-5