Yealink SIP-T48G Administrator's Manual page 241

Parameters
Note: If you change this parameter, the IP phone will reboot to make the change
take effect.
Web User Interface:
Network->Advanced->802.1x->802.1x Mode
Phone User Interface:
Menu->Settings->Advanced Settings (default password: admin)
->Network->802.1x Settings->802.1x Mode
network.802_1x.identity
Description:
Configures the user name for 802.1x authentication.
Example:
network.802_1x.identity = admin
Note: It works only if the value of the parameter "network.802_1x.mode" is set to 1,
2, 3 or 4. If you change this parameter, the IP phone will reboot to make the change
take effect.
Web User Interface:
Network->Advanced->802.1x->Identity
Phone User Interface:
Menu->Settings->Advanced Settings (default password: admin)
->Network->802.1x Settings->Identity
network.802_1x.md5_password
Description:
Configures the password for 802.1x authentication.
Example:
network.802_1x.md5_password = admin123
Note: It works only if the value of the parameter "network.802_1x.mode" is set to 1,
3 or 4. If you change this parameter, the IP phone will reboot to make the change
take effect.
Web User Interface:
Network->Advanced->802.1x->MD5 Password
Phone User Interface:
Menu->Settings->Advanced Settings (default password: admin)
->Network->802.1x Settings->MD5 Password
Configuring Security Features
Permitted Values
String within 32 characters
String within 32 characters
Default
Blank
Blank
229