To determine what image to display, the telephone follows this procedure:
1. During boot-up the telephone checks for the file named in the system parameter
SCREENSAVER. If found, that file is checked for valid jpeg format, and to verify that the
screen saver image height and width do not exceed the applicable full screen pixel count of
160x160 for a 9610, 160x320 for a 9620, or 320x240 for a 9630, 9640 or 9650, or 480x640
for a 9670G IP Telephone. Note that the screen saver should be a smaller size than these
pixel values specified so it can move randomly while displaying the entire image.
2. If no valid file was downloaded, either because no file exists, or because the downloaded
file exceeded one or more of the pixel count limits, or because the image is not a valid
JPEG image, the Avaya-specific screen saver is used.
The best way to use the SCREENSAVER parameter is to administer different file names in the
46xxsettings file, listed under different MODEL4 values (9620, 9630, etc.). In other words, using
the MODEL4 IF statements, you can administrator a given telephone to point to a unique
SCREENSAVER value that is appropriate for that telephone.
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