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Starting with version 10.1.42.10, Snom phones allow users to manually upload custom images to replace the default ones on the phone.
The link is on the Preferences → Appearance page called "More Controls" just below the Custom Background URL input.
Just press the Reset button, then the uploaded icon will be removed.
"custom_bg_image_url" has the higher priority than "bg.png" uploaded by custom , if they both are set, then the image in "custom_bg_image_url" will be the background image.
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