Aastra 55I IP PHONE - RELEASE 2.1 User Manual page 116

Using the Lock/Unlock Key on the IP Phone
After configuring a key as a lock/unlock key, refer to the following procedure to use
the key on the IP phone.
Lock the Phone
1. Press the LOCK key.
The phone locks.
The LED for the key AND the Message Waiting Lamp illuminate steady ON. An
"Unlock" label appears next to the key you just pressed.
Unlock the Phone
1. Press the UNLOCK key.
A password prompt displays.
2. Enter your user password and press ENTER.
The phone unlocks.
The LED for the key AND the Message Waiting Lamp go OFF. The "Lock" label
appears next to the key you just pressed.
108 Model 55i IP Phone User Guide