Yealink SIP-T54S Administrator's Manual page 972

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Phone User Interface:
None
static.server_certificates.delete
Description:
Deletes all uploaded server certificates.
Example:
static.server_certificates.delete = http://localhost/all
Web User Interface:
None
Phone User Interface:
None
static.phone_setting.reserve_certs_enable
Description:
Enables or disables the IP phone to reserve custom certificates after it is reset to factory
defaults.
0-Disabled
1-Enabled
Web User Interface:
None
Phone User Interface:
None
To configure TLS on a per-line basis via web user interface:
Click on Account->Register.
1.
Select the desired account from the pull-down list of Account.
2.
946
Parameters Permitted Values
http://localhost/all
0 or 1
Default
Blank
0