Yealink SIP-T48G Administrator's Manual page 246

Microsoft Lync Edition Administrator's Guide for SIP-T2_Series and T4_Series IP Phones
4) Click Upload to upload the certificate.
3. Click Confirm to accept the change.
A dialog box pops up to prompt that settings will take effect after a reboot.
4. Click OK to reboot the phone.
To configure the 802.1X authentication via phone user interface after:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->802.1x Settings.
2. Press
Mode field.
a) If you select EAP-MD5:
1) Enter the user name for authentication in the Identity field.
2) Enter the password for authentication in the MD5 Password field.
b) If you select EAP-TLS:
1) Enter the user name for authentication in the Identity field.
2) Leave the MD5 Password field blank.
c) If you select PEAP-MSCHAPv2:
1) Enter the user name for authentication in the Identity field.
2) Enter the password for authentication in the MD5 Password field.
d) If you select EAP-TTLS/EAP-MSCHAPv2:
1) Enter the user name for authentication in the Identity field.
2) Enter the password for authentication in the MD5 Password field.
234
or , or the Switch soft key to select the desired value from the 802.1x