User Guide for the SIP-T48S IP Phone44To change the DSSkey wallpaper via phone user interface:1. Tap ->Basic->Display->DSSkey Wallpaper.2. Tap or , or press or to select the desired wallpaper image.3. Tap the Save soft key to accept the change or to cancel.Wallpaper with DSSkey unfold is configurable via web user interface at the pathSettings->Preference->Wallpaper with DSSkey unfold.TransparencyIf you are using a custom picture with a single color or complex background as the wallpaper(refer to Wallpaper), it may affect your experience of the idle screen display. You can choose anappropriate transparency for DSS keys and status bar on the idle screen as required.The transparency can be configured from the following options: 0%: The DSS keys and status bar are non-transparent. 20%, 40%, 60% or 80%: The DSS keys and status bar are translucent. 100%: The DSS keys and status bar are transparent.