SMT-W6100 User Guide119Private no. filter (Menu 6.1.7)Only an incoming message is displayed without the bell for anonymous calls(incoming callswithout Caller ID).VIP filter has higher priority than Private no. filter. Therefore, if both VIP and Private no. filterfeatures are enabled, only VIP filter function will operate.Display (Menu 6.2)You can change the background image and the color of the components on the display accordingto your preference and needs.Wallpaper (Menu 6.2.1)This option allows you to change the background image to be displayed in Idle Mode.