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Sound recorder
Record the call.
Background sound
Press this key in this state to open or close background sound.
Mute
Open or close Mute.
DTMF
Open or close DTMF.
Note:
Menu items marked with * appear in specific conditions only. For example,
"Switch" appears only when calls in talk state and hold state exist at the same
time. Besides, multi-party talk function should be applied from network service
operator.
3.7 Keyboard lock
You can select time for automatic keyboard lock via [Settings][Security
settings][Auto keypad lock], so that your cell phone can automatically locks the
keyboard.
You can also press [soft key] and then [send key] to lock keyboard in standby
state.
Once keyboard is locked, you can press [send key] according to directions on
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