Configuring Basic Features171Parameter Permitted Values DefaultFor SIP-T40P/T40G/T27P/T27G/T23P/T23G/T21(P) E2/T19(P) E2:Settings->Preference->ContrastPhone User Interface:Menu->Basic->Display->ContrastTo configure contrast via web user interface (take SIP-T23G IP phones for example):1. Click on Settings->Preference.2. Select the desired value from the pull-down list of Contrast.3. Click Confirm to accept the change.To configure contrast via phone user interface (take SIP-T23G IP phones for example):1. Press Menu->Settings->Basic Settings->Display->Contrast.2. Press or , or the Switch soft key to increase or decrease the intensity of contrast.3. Press the Save soft key to accept the change.To configure the contrast via phone user interface:1. Press Menu->Basic->Display->Contrast.If EXP40 is not connected to the phone, the Contrast Setting screen displays "No EXP".2. Press or , or the Switch soft key to increase or decrease the intensity of contrast.3. Press the Save soft key to accept the change or the Back soft key to cancel.WallpaperWallpaper is an image used as the background of the IP phone. Users can select an image fromIP phone’s built-in background or customize wallpaper from personal pictures. To set thecustom wallpaper as the IP phone background, you need to upload the custom wallpaper to theIP phone in advance. The wallpaper is only applicable to SIP-T48G/S, SIP-T46G/S and SIP-T29GIP phones.
