Samsung SCH-N150 - Manual (Page 32)

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Your phone’s modes
Answer mode
With this option activated, your phone will allow you to select a specific mode
when you receive an incoming call. For further information see “Several ways
to answer a call” on page 20.
Digital mode
Your phone has some features that work only in digital service areas, the
icon indicates that your phone is operating in digital mode. If the digital icon
is absent, your phone is operating in analog mode.
Input modes
Input modes are used for entering text, numbers and symbols into various
screens. For further information see “Entering text, numbers, and/or symbols”
on page 101.
Lock mode
When you lock your phone using the Lock Mode menu option, phone usage
becomes restricted. You can receive messages and calls, but you cannot make
an outgoing call until your phone is unlocked. You can unlock your phone, by
following the prompts and entering the lock code.
Power save mode
Your phone comes with a power save feature that automatically activates if your
phone is unable to find a signal after 15 minutes of searching. While this
feature is active, the phone’s battery charge is conserved. The phone
automatically rechecks periodically for a signal. To manually force the phone
to recheck for a signal, press any key. A message on the display screen will
inform you when your phone is operating in the power save mode.