114
•Select Yes to change the key. Key version changed 
display will appear.
•Select No to leave the key. Key version display will 
appear.
Covert Mode
From the main menu, select > Security 
> Covert Mode.
Set Covert Mode to On
Select On. All tones are set to off, and the backlight is 
greyscalled and dimmed. The group audio is routed to the 
earpiece. 
Set Covert Mode to Off
Select Off. All settings for tones, backlights and audio are 
restored. The LED is enabled and the message Covert 
Mode Off is shown.
Setup 
From the main menu, select Setup.
This sub-menu allows you to change 
your MTM800 Enhanced configuration: 
ring style, set volume, language, data 
setup, audio, tones, display and time & 
date.
Setting the Ring Style
This sub-menu allows you to set the 
incoming call ring style. Your MTM800 
Enhanced features nine for Duplex and 
ten for Simplex selectable ring styles.
From the main menu, select Setup 
> Ring Style.
On
Back
Select
Covert Mode
Language
Data Setup
Group Audio
Tones
Display
Back
Select
Setup
British
Style 2
Style 3
French
German
Back
Select
Duplex