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The Menu
Locking/Unlocking the Keypad
To prevent accidental key/button presses:
Press to lock/unlock the keypad.
Service Provider can choose the notification for the Keypad
lock and if to lock the PTT.
Keypad Lock Notification
When the keypad is locked one of the following instructions is
displayed:
• None - no notification is display.
• Notification Only - Keys Locked is displayed.
• Notification and Instruction - Keys Locked, Press Menu
and * to unlock is displayed.
Air Encryption On/Off
From the main menu, select Security > Air Encrypt.
This sub-menu allows you to view air encryption On/Off state.
Call encryption provides service confidentiality between you
and the system.
If encryption is on and you receive a clear call (unencrypted),
the MTM800 Enhanced will display a Call & Data Not
Encrypted message.
When there is an incoming call and the keypad with PTT are
locked, you can still use the PTT, rotary knob, , and .
The Emergency button is not locked. Entering Emergency
Operation, unlocks all keys.
You cannot manually disable Air Encryption (if fitted) from the
menu. This sub-menu only indicates if Air Encryption is enabled
at that moment.
The
Air Encryption feature is ONLY enabled depending on your
Service Provider.
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