Advanced settings - 43Adjusting settingsWireless & networks (managing connections)Open the Apps list and tap Settings to manage your connectionsettings.If your phone is in Airplane mode, the option to turn Bluetooth on willbe disabled. Please refer to Putting your phone in Airplane modeon page 42 for instructions on turning Airplane mode on or off.Item DescriptionWi-Fi Turn the Wi-Fi function on or off.Bluetooth Turn the Bluetooth function on or off.SIM cardsSet a default SIM for particular functions(such as voice calling or messaging), turn thedata connection on or off, set roamingpreferences and associate contacts with aSIM.Data usage View an estimate of the mobile data used foreach SIM.Call Settings Change various settings related to makingand receiving calls.More...Access additional connection settings:Airplane mode: Disable all wirelessconnections so you can safely use this deviceonboard an aircraft.SMS app: Set the app used to send andreceive SMS.Tethering & portable hotspot: Share yourphone’s mobile data connection via USB or asa portable Wi-Fi hotspot.VPN: Set up and manage Virtual PrivateNetworks.Cellular/Mobile networks: Set your optionsfor connecting to cellular networks.Cell broadcasts: View active alerts for yourarea.