Yealink SIP-T48G Administrator's Manual page 226

Microsoft Lync Edition Administrator's Guide for SIP-T2_Series and T4_Series IP Phones
Details of Configuration Parameters:
features.lock_account.enable
Description:
Enables or disables the IP phone to lock the account to prevent the account being
signed in or signed out randomly.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), the IP phone will prompt for administrator password to sign
in or sign out.
Web User Interface:
Account->Basic->Account Lock
Phone User Interface:
Menu->Settings->Advanced Settings (default password: admin) ->Account Lock
To configure account lock feature via web user interface:
1. Click on Account->Basic.
2. Select the desired value from the pull-down list of Account Lock.
3. Click Confirm to accept the change.
To configure account lock feature via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin) ->Account
Lock.
2. Press
Account Lock field.
3. Press the Save soft key to accept the change.
214
Phone User Interface
Parameters
or , or the Switch soft key to select the desired value from the
Configure account lock.
Permitted Values
0 or 1
Default
0