User Guide for the SIP-T23P/G IP Phone362. Press or , or the Switch soft key to select the desired time from theBacklight Time field.3. Press the Save soft key to accept the change or the Back soft key to cancel.Backlight is configurable via web user interface at the path Settings->Preference.You can configure the LCD screen contrast to a comfortable level. The intensity ofcontrast ranges from 1 to 10 and the highest intensity is 10.To configure the contrast via phone user interface:1. Press Menu->Settings->Basic Settings->Display->Contrast.2. Press or , or the Switch soft key to increase or decrease the intensity ofcontrast.The default contrast level is “6”.3. Press the Save soft key to accept the change or the Back soft key to cancel.Contrast is configurable via web user interface at the path Settings->Preference.The default language of the phone user interface is English. If the language of your webbrowser is not supported by the phone, the web user interface will use English bydefault. You can change the language for the phone user interface and the web userinterface respectively.To change the language for the phone user interface:1. Press Menu->Settings->Basic Settings->Language.