Yealink SIP-T48G Administrator's Manual page 272

Microsoft Lync Edition Administrator's Guide for SIP-T2_Series and T4_Series IP Phones
GeoTrust Universal CA

GeoTrust Universal CA2

Thawte Personal Freemail CA

Thawte Premium Server CA

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

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
This section describes how Yealink IP phones comply with the IETF definition of SIP as
described in RFC 3261.
This section contains compliance information in the following:
SIP Request

SIP Header

260
on page 215.