8.3 Ringtone settingsYou can change the ringtone type and volume that is heard during an incoming call.R For information about how to configure settings, see page 10 and 21.8.4 Main monitor/extension monitor - function settings listYou can change the settings to match how the main monitor or extension monitor is used.1 Press M N.2 Select the desired item ® .R Repeat this step as necessary to navigate to the desired setting.3 Select the desired setting ® .4 Press M N.Note:R If you do not perform any operations for 90 seconds while changing these settings, or if an incoming call is received,the setting is cancelled and the screen turns off.R In the following table, default settings are indicated by < >.R While changing settings, “U” is displayed to the left of the currently selected item.Item name: “Information display”Sub-menuSettings1Status of connected devices*1 –*1 This item is not displayed for the extension monitor; only its contents are displayed.Item name: “Initial settings”Sub-menuSettings1 2 3Time and datesettings*2– – 2019-1-1 0:00Zoom positionsettings*1, *3Doorphone 1- 2– –For details seepage 19.Wide/Zoomsettings*1, *3Doorphone 1- 2Whenvisitorscome/WhenmonitoringZoom, <Wide>Power supplyfrequency*1– – <50 Hz>, 60 Hz– To prevent mottled or uneven colour frombeing displayed, choose the appropriatepower supply frequency for your area.Adjust imagequality*4Doorphone 1*5 Colour(red)Colour(blue)– Adjusts the colouring of images from thedoorphone or lobby station. 5 levels can beselected for each colour (default setting:level 3).Doorphone 2*5Select language*2 – – <English>, Tiếng Việt, العربية*1 These functions are not available for the extension monitor.*2 When using the product for the first time, follow the on-screen instructions to configure this setting (page 11).208. Additional functions