Specifications

310HD, 320HD and 420HD IP Phones
24.3 Locking and Unlocking the 420HD IP Phone
The procedures below describe how to lock and then unlock your 420HD IP phone.
24.3.1 Single-Line Mode
The procedures below describe how to lock and then unlock your phone when it's in single-
line mode.
To lock your 420HD IP Phone:
Press the star (*) key for approximately 3 seconds; the phone locks and the lock icon
is displayed on the screen:
To unlock your 420HD IP Phone:
1. Press the star key until you are prompted for the unlock password:
2. Enter the password, and then press the OK softkey; the phone is unlocked and the
lock icon no longer appears on the screen.
Administrator's Manual 166 Document #: LTRT-09910