23Using theUsing theUsing theUsing the WWANWWANWWANWWAN FeatureFeatureFeatureFeature ((((OptionalOptionalOptionalOptional))))A WWAN (Wireless Wide Area Network) uses mobile telecommunication cellularnetwork technologies to transfer data. The WWAN module of your Tablet PC supports3G and 4G LTE.NOTE: Your model only supports data transmission. Voicetransmission is not supported. For instructions on installing the SIM card, see “Installingthe SIM Card (Optional)” in Chapter 1.TurningTurningTurningTurning On/OffOn/OffOn/OffOn/Off the WWAN Radiothe WWAN Radiothe WWAN Radiothe WWAN RadioTo turn on the WWAN radio:1. Make sure that the Airplane mode is switched off. You can control the Airplanemode using one of the below methods.• Use the Airplane Mode button in the OSD Control Panel.• For Windows 10: Tap Settings Network & Internet Airplanemode. Slide the Airplane mode switch to the Off position.2. If you have previously turned off the WWAN radio, use this method to turnit on..Tap Settings Network & Internet Airplane mode. Slide the Cellularswitch to the On position.To turn off the WWAN radio:You can turn off the WWAN radio the same way you turn it on.If you want to quickly turn off all wireless radio, simply switch on Airplane mode.