Kazakhstan(Astana, Almaty)
Russia(Novosibirsk, Omsk)
Australia(Sydney, Melbourne, Canberra)
Australia(Lord Howe Islands)
New Zealand(Wellington, Auckland)
New Zealand(Chatham Islands)
Yealink IP phones trust the following CAs by default:
DigiCert High Assurance EV Root CA
Deutsche Telekom AG Root CA-2
Equifax Secure Certificate Authority
Equifax Secure eBusiness CA-1
Equifax Secure Global eBusiness CA-1
GeoTrust Global CA
GeoTrust Global CA2