Aastra 9143i Series Administrator's Manual page 316

IP Phone Administrator Guide
Operational Features
Locking/Unlocking the Phone Using the Aastra Web UI
Use the following Aastra Web UI procedure to lock/unlock an IP phone and
prevent it from being used or configured.
Aastra Web UI
1 Click on Operation->Phone Lock.
Lock the phone:
2 In the "Lock the Phone?" field, click
The phone locks dynamically and displays the following message:
"Phone is locked".
Unlock the phone:
3 Click on Operation->Phone Lock.
4 In the "Unlock the Phone?" field, click
The phone unlocks dynamically and displays the following message:
"Phone is unlocked".
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41-001160-03 Rev 00, Release 2.5