Yealink SIP-T54S Administrator's Manual page 155

If you select EAP-PEAP/GTC:
e)
(Optional.) Enter the anonymous user name for authentication in the
1)
Anonymous Identity field.
Enter the user name for authentication in the Identity field.
2)
Enter the password for authentication in the MD5 Password field.
3)
In the CA Certificates field, click Browse to select the desired CA certificate
4)
(*.pem, *.crt, *.cer or *.der) from your local system.
Click Upload to upload the certificate.
5)
If you select EAP-TTLS/EAP-GTC:
f)
(Optional.) Enter the anonymous user name for authentication in the
1)
Anonymous Identity field.
Enter the user name for authentication in the Identity field.
2)
Enter the password for authentication in the MD5 Password field.
3)
Setting Up Your System
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