Customizing Your Phone
Lock/Unlock the Keypad during a Call
To prevent accidentally pressing keys you can lock them during a call. This can be useful when a headset is used and the handset is attached to a pocket or belt.
Lock keypad
1.Press 
.
2.Press "Lock".
Unlock keypad
1.Press 
2.Press "Yes".
Lock/Unlock the Handset
You can protect the handset from unauthorized use. If you enable this function, you must enter a PIN code to switch on the handset to answer calls. You can change the default phone lock code (0000) to any 4 - 8 digit personalized code.
1.Press "Menu".
2.Select "Settings"
.
3.Select “Locks".
4.Select “Phone lock”.
5.Select "Auto phone lock".
6.Select "On", "On in charger", or "Off".
Note: If configured in the PDM, you can call an emergency call while the handset is locked. See the Mitel 5603 Wireless Handset Configuration Manual.
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