Customizing Your Phone19You can customize your SIP-T42G IP phone by personally configuring certain settings, forexample, contrast, time & date and ring tones. You can add contacts to the phone’slocal directory manually or from call history. You can also personalize different ringtones for different callers.This chapter provides basic operating instructions for customizing your phone. Topicsinclude: General Settings Audio Settings Contact Management Call History Management System CustomizationsIf you require additional information or assistance with your new phone, contact yoursystem administrator.You can configure backlight to adjust the brightness of the LCD screen. Backlight statuson the LCD screen can be configured as the following types: Always On: Backlight is on permanently. 15, 30, 60, 120, 300, 600 or 1800: Backlight is turned off when the phone is inactiveafter the specified time (in seconds).To configure the backlight via phone user interface:1. Press Menu->Settings->Basic Settings->Display->Backlight Settings.2. Press or , or the Switch soft key to select the desired value from theBacklight Time field.3. Press the Save soft key to accept the change or the Back soft key to cancel.