Yealink SIP-T4X Administration Manual page 199

Administrator's Guide for SIP-T4X IP Phones
4) Click Upload to upload the certificate.
3. Click Confirm to accept the change.
A dialog box pops up to prompt that the settings will take effect after reboot.
4. Click OK to reboot the IP phone.
To configure the 802.1X via phone user interface after:
1. Press Menu->Advanced (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 Password field.
b) If you select EAP-TLS:
1) Enter the user name for authentication in the Identity field.
2) Leave the 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 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 Password field.
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or , or the Switch soft key to select the desired value from the 802.1x