Aastra Telecom MBU 400 41-001286-00 - Manual (Page 28)

28 Aastra MBU 400 User Guide
Using the 420d Handset
Locking/Unlocking the Keypad
You can lock and unlock the keypad on the phone when required. When locked, it
prevents unauthorized users from using your phone, and prevents you from accidently
hitting the keypad if you are carrying the phone around.
To lock or unlock the keypad do the following.
1. Press the * key.
2. Press the Lock or Unlock softkey.
Note: The keypad unlocks automatically when you answer an incoming call, or if you
make an emergency call. For more information about emergency calls, see
Making
Emergency Calls on page 49 .
Changing the PIN Code for VoIP Settings
Under some configurations, selected menus are protected with a PIN code. With a
PIN code set no one is able to access these menus on your handset without first
entering the 4-digit code. If you need to know your PIN code, contact your System
Administrator or try the default value "2222". Once you have entered the correct PIN
code you can change it using the phone handset.
To change a VoIP PIN code, do the following.
1. In Idle mode, press OK z to display the Main Menu.
2. Select Settings and press OK z.
3. Select VoIP settings , and press OK z.
4. If prompted, enter the current 4-digit PIN code and press OK z.
5. Select Change PIN code and press OK z.
6. Enter a new PIN code using the numbers on the keypad, and press OK z.
You can enter up to 4 numerical characters for your PIN. The characters display as
you type, but are encrypted after saving the PIN.
Note: If you or someone else has already set a PIN code, you need to enter the old
code to access the
VoIP settings menu.
7. Press the Yes softkey when prompted to save the PIN code.
8. For future reference, write your new PIN code here:
Note: The new PIN code does not take effect until the MBU 400 has been reset.
Changing the Access Code
The access code is used to ensure your handset connects to the correct gateway in an
environment with more than one gateway present. Handset and gateway access codes
must be the same at all times, and all handsets must use the same code as the gateway.
Note: If you forget the gateway access code and are unable to register a handset, the
access code can be reset by the System Administrator using the web interface.
When registering a new handset, ensure that its access code is modified to the same
value as the access code of the gateway. For information on how to register the
handset, see
Manually Registering/De-registering a Handset on page 60 .