Nokia 6303I User Manual page 13

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Warning:
With the Flight profile you cannot make or
receive any calls, including emergency
calls, or use other features that require
network coverage. To make calls, you
must first activate the phone function by
changing profiles. If the device has been
locked, enter the lock code.
If you need to make an emergency call
while the device is locked and in the Flight
profile, you may be also able to enter an
official emergency number programmed
in your device in the lock code field and
select 'Call'. The device will confirm that
you are about to exit Flight profile to start
an emergency call.
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