Nokia 5170 - Manual (Page 62)

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Allowing calls to a number on the list
If you later decide to allow calls to a
restricted number, scroll to Select and
press OK. You can now see your list of
numbers. Press Unmark to remove the
restriction. (The number remains in the
list so that you can restrict it again later by pressing Mark.)
When you’re done, press
. Press Yes to save your
changes (or to cancel).
Phone lock
You can prevent unauthorized use of your phone by locking
it. When your phone is locked, only incoming calls and calls
to the unlocked phone number (see below) are allowed. The
memory and menu are unavailable.
Note: Calls may still be possible to emergency numbers.
How to lock your phone
Press Menu 4 3 2 1. Enter the lock code (see page 51), then
press OK. Scroll to On, then press OK.
How to unlock your phone
Press Menu, enter the lock code, then press OK.
Answering a call when the phone is locked
Press Answer.
Saving the unlocked phone number
Use Menu 4 3 2 2 to save a number that may be called even
when your phone is locked. You are required to enter the
lock code.
Calling the unlocked phone number
Press or , or manually enter the number exactly as it
is saved, then press Call.