Yealink SIP-T2 SERIES Administrator's Manual page 961

Thawte Primary Root CA - G1 (EV)

Thawte Primary Root CA - G2 (ECC)

Thawte Primary Root CA - G3 (SHA256)

Thawte Server CA

VeriSign Class 1 Public Primary Certification Authority

VeriSign Class 1 Public Primary Certification Authority - G2

VeriSign Class 1 Public Primary Certification Authority - G3

VeriSign Class 2 Public Primary Certification Authority - G2

VeriSign Class 2 Public Primary Certification Authority - G3

VeriSign Class 3 Public Primary Certification Authority

VeriSign Class 3 Public Primary Certification Authority - G2

VeriSign Class 3 Public Primary Certification Authority - G3

VeriSign Class 3 Public Primary Certification Authority - G4

VeriSign Class 3 Public Primary Certification Authority - G5

VeriSign Class 4 Public Primary Certification Authority - G2

VeriSign Class 4 Public Primary Certification Authority - G3

VeriSign Universal Root Certification Authority

ISRG Root X1 (intermediate certificates: Let's Encrypt Authority X1 and Let's Encrypt

Authority X2 are signed by the root certificate ISRG Root X1.)
Baltimore CyberTrust Root

DST Root CA X3

Version Public SureServer CA G14-SHA2

Note
Yealink endeavors to maintain a built-in list of most common used CA Certificates. Due to
memory constraints, we cannot ensure a complete set of certificates. If you are using a
certificate from a commercial Certificate Authority not in the list above, you can send a
request to your local distributor. At this point, you can upload your particular CA
certificate into your phone. For more information on uploading custom CA certificate,
refer to Transport Layer Security
ISRG Root X1, Let's Encrypt Authority X1 and Let's Encrypt Authority X2 certificates are
only applicable to SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P)
E2 IP phones running firmware version X.80.0.95 or later.
Baltimore CyberTrust Root, DST Root CA X3 and Version Public SureServer CA G14-SHA2
certificates are only applicable to
SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P) E2 IP phones
running firmware version X.80.0.130 or later.
on page 850.
Appendix
939