Appendix369 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 Microsoft_IT_SSL_SHA2.cer CNNIC_Root.cer baltimoreCyberTrust.cer UserTrust.cer AAA Certificate Services.cer DigiCert Assured ID Root CA.cer Entrust.net Certification Authority (2048).cer Entrust Root Certification Authority Entrust.net Secure Server Certification Authority GTE CyberTrust Global Root.cer Starfield Class 2 Certification Authority.cer AddTrust External CA Root Go Daddy Class 2 Certification Authority StartCom Certification Authority DST Root CA X3 ISRG Root X1 (intermediate certificates: Let’s Encrypt Authority X1 and Let’s EncryptAuthority X2 are signed by the root certificate ISRG Root X1.) Baltimore CyberTrust Root AddTrust External CA Root Starfield Root Certificate Authority - G2NoteAppendix D: SIP (Session Initiation Protocol)This section describes how Yealink Skype for Business phones comply with the IETF definition ofSIP as described in RFC 3261.This section contains compliance information in the following: RFC and Internet Draft Support SIP RequestYealink endeavors to maintain a built-in list of most common used CA Certificates. Due tomemory constraints, we cannot ensure a complete set of certificates. If you are using a certificatefrom a commercial Certificate Authority not in the list above, you can send a request to your localdistributor. At this point, you can upload your particular CA certificate into your phone. For moreinformation on uploading custom CA certificate, refer to Transport Layer Security on page 310.
