Yealink SIP-T48S

User Guide for the SIP-T48S IP Phone
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To activate the phone lock via phone user interface:
1. Tap ->Basic->Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Unlock PIN field, and then tap OK.
3. Tap the gray box of the Lock Enable field, and then select Enabled from the pull-down list.
4. Enter the desired interval of automatic phone lock in the Lock Time Out field.
The default timeout is 0. It means the phone will not be automatically locked. You need to
long press to lock it immediately when the phone is idle.
If it is set to other values except 0 (e.g., 5), the phone will be locked when the phone is
inactive in idle screen for the designated time (in seconds).
5. Tap the Save soft key to accept the change.
When the phone is locked, the touch screen prompts “Phone locked.” and displays the
icon .