LG LW770 - Manual (Page 63)

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Calls
O You can use other phone features while the call is underway. If you
open another application, the Call icon appears in the Status Bar for
the duration of the call.
O Press the Volume Keys to adjust the call volume.
O Use the on-screen buttons to enter additional numbers, place the
call on hold and take an incoming call, add another call, use the
speakerphone, end the call, and other options.
NOTE If you opened other applications while on a call, you'll need to return to the Call screen
to end the call. You can touch the Home Key , then the Phone Key or drag the
Notifications panel down and touch the Call icon. You can also touch the Contact's name
or number at the top left corner of the Home screen.
Airplane mode
Some locations may require you to turn off your phone’s wireless
connections by placing your phone in Airplane mode.
1. Press and hold the Power/Lock Key .
2. Touch Airplane mode.
NOTE The Wireless & networks menu also has a checkbox to enable or disable Airplane mode.