The codec features a front panel lock feature for tamper-proof operation. This feature is disabled by default. There are two levels of panel lock and each requires a PIN to access different features:
1.Admin PIN: Required to change codec connection or configuration settings accessed via the SETTINGS 
button. (Default PIN is: 456789)
2.User PIN: Required to use the codec front panel buttons and dial/hangup a connection (Default PIN is: 123456)
Enabling the Front Panel Lock Feature
1.Press the SETTINGS button and navigate to System.
2.Navigate to Security and and press the 
button.
3.Navigate to Panel Auto Lock and press the button to toggle from Disabled to Enabled.
4.Navigate to the Lock Timeout field and press to enter the desired time-out period in seconds. Note: The time-out period is the time in seconds before the codec front panel is relocked after being used.
5.To change the default Admin PIN or User PIN, navigate to each in turn and press to set a new PIN.
