Nokia 8860 Owner's Manual page 21

To set voice privacy
1 Press Menu 4 4 1 (Settings - Network services - Voice
privacy).
2 Press Select.
3 Scroll to On or Off.
4 Press OK.
Voice privacy becomes active only during a call and notifies you with a
beep. Voice privacy active also appears on the screen.
If you turn this feature on and voice privacy becomes inactive for any
reason, your phone displays Voice privacy not active and
beeps.
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