11.1.4
Mobile networks
Mobile Data
Touch to enable mobile data such as email, web browsing and
push notifications over the cellular network.
International Data roaming
If you don't need to transmit data on other operators' mobile
networks, disable International Data roaming to avoid
incurring significant roaming charges.
Access Point Names
You can select your preferred network with this menu.
Network operators
You can select a network operator.
11.1.5
More...\Airplane mode
Touch the switch
simultaneously disable all wireless connections including
Wi-Fi, Bluetooth and more.
11.1.6
More...\Tethering & portable hotspot
This function allows you to share your phone's mobile data
connection via USB or as a portable Wi-Fi access point (refer
to "7.5 Sharing your phone's mobile data connection").
11.1.7
More...\VPN
A mobile virtual private network (mobile VPN or mVPN)
provides mobile devices with access to network resources
and software applications on their home network, when they
connect via other wireless or wired networks. Mobile VPNs are
used in environments where workers need to keep application
sessions open at all times, throughout the working day, as
the user connects via various wireless networks, encounters
gaps in coverage, or suspends-and-resumes their devices
to preserve battery life. A conventional VPN can't survive
to turn on Airplane mode to
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