Yealink SIP-T48G Administrator's Manual page 230

Microsoft Lync Edition Administrator's Guide for SIP-T2_Series and T4_Series IP Phones
Local
Details of Configuration Parameters:
security.trust_certificates
Description:
Enables or disables the IP phone to only trust the server certificates in the Trusted
Certificates list.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone will trust the server no matter whether the
218
Web User Interface
Parameters
Parameters:
security.dev_cert
Upload the trusted certificates.
Parameter:
trusted_certificates.url
Delete all uploaded trusted
certificates.
Parameter:
trusted_certificates.delete
Upload the server certificates.
Parameter:
server_certificates.url
Delete all uploaded server
certificates.
Parameter:
server_certificates.delete
Configure trusted certificates feature.
Upload the trusted certificates.
Navigate to:
http://<phoneIPAddress>/servlet?p=
trusted-cert&q=load
Configure server certificates feature.
Upload the server certificates.
Navigate to:
http://<phoneIPAddress>/servlet?p=
server-cert&q=load
Permitted Values
0 or 1
Default
1