Yealink SIP-T54S Administrator's Manual page 967

Procedure
Configuration changes can be performed using the following methods.
<MAC>.cfg
Central
Provisioning
(Configuration
File)
<y0000000000xx>.cfg
Web User Interface
Configuring Security Features
Configure TLS on a per-line basis.
Parameter:
account.X.sip_server.Y.transport_type
Configure the TLS version.
Parameter:
static.security.default_ssl_method
Configure trusted certificates feature.
Parameters:
static.security.trust_certificates
static.security.ca_cert
static.security.cn_validation
Configure server certificates feature.
Parameter:
static.security.dev_cert
Upload the trusted certificates.
Parameter:
static.trusted_certificates.url
Delete all uploaded trusted certificates.
Parameter:
static.trusted_certificates.delete
Upload the server certificates.
Parameter:
static.server_certificates.url
Delete all uploaded server certificates.
Parameter:
static.server_certificates.delete
Configure the custom certificates.
Parameter:
static.phone_setting.reserve_certs_enable
Configure TLS on a per-line basis.
Navigate to:
http://<phoneIPAddress>/servlet?p=accou
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