iPhone THE MISSING MANUAL - Cdn.oreilly.com

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for example)—requires more than just connecting to it. You also have to sign
into it, exactly as you’d do if you were using a laptop.
To do that, return to the Home screen and open Safari. You’ll see the “Enter
your payment information”screen either immediately, or as soon as you try to
open a Web page of your choice.
Supply your credit-card information or (if you have a membership to this Wi-
Fi chain, like Boingo or T-Mobile) your name and password. Click Submit or
Proceed, try not to contemplate how this $8 per hour is pure profit for somebody,
and enjoy your surfing.
Turning Off the Antennas—and
Airplane Mode
To save battery power, and (on a plane) to comply with flight regulations, you
can turn off one or both of the iPhone’s antennas: Wi-Fi and cellular.
•
•
To turn Wi-Fi on or off.
From the Home screen, tap
SettingsÆWi-Fi. Tap the On/
Off switch to shut this radio
down (or turn it back on).
To turn both antennas off.
When you turn on Airplane
mode (tap Settings, then
turn on Airplane Mode),
you turn off both the Wi-Fi
and the cellular antennas.
Now you can’t make calls or
get onto the Internet at all.
You’re saving battery power,
however, and also complying
with flight regulations that
ban cellphones and other
transmitters.
Once you’re in Airplane mode, anything you do that requires voice or Internet
access—text messages, Web, email, Weather, Stocks, Google Maps, and so
on—triggers a message.“You must disable Airplane mode to access data.”Tap
either Cancel (to back out of your decision) or Disable (to turn off Airplane
mode, turn on the antennas, and get online).
Chapter 6