Yealink SIP-T21 E2

Configuring Security Features
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4. Click Confirm to accept the change.
Note
To change the administrator password via phone user interface:
1. Press Menu->Advanced (default password: admin) ->Change Password.
2. Enter the current administrator password in the Old PWD field.
3. Enter new password in the New PWD field and Confirm PWD field.
Valid characters are ASCII characters 32-126(0x20-0x7E).
4. Press the Save soft key to accept the change.
Auto Logout Time
Auto logout time defines a specific period of time during which the IP phones will automatically
log out if you have not performed any actions via web user interface. Once logging out, you
must re-enter username and password for web access authentication.
Procedure
Auto logout time can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure auto logout time.
Parameter:
features.relog_offtime
Web User Interface
Configure auto logout time.
Navigate to:
http://<phoneIPAddress>/servlet?
p=features-general&q=load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
features.relog_offtime
Integer from 1 to 1000
5
Description:
Configures the timeout interval (in minutes) for web access authentication.
Example:
features.relog_offtime = 5
If you log into the web user interface and leave it for 5 minutes, it will automatically log out.
If logging into the web user interface of the phone with the user credential, you need to enter
the old user password in the Old Password field.