Security Level (Menu 4-5-5)
This menu allows you to set the phone security level on to avoid
unauthorised use of the phone. You will need the security code to
set the security level. The available options are:
None, Memory
(security code is required when Phone Book memory is selected) and
Phone
(security code is required when a new SIM card is inserted).
NOTE: When you change the security level, all the
recent calls lists are cleared.
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