Yealink SIP-T2 SERIES Administrator's Manual page 880

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Note: The certificate you want to upload must be in *.pem or *.cer format.
Web User Interface:
Security->Server Certificates->Load server cer file
Phone User Interface:
None
server_certificates.delete
Description:
Deletes all uploaded server certificates.
Example:
server_certificates.delete = http://localhost/all
Web User Interface:
None
Phone User Interface:
None
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:
1. Click on Account->Register.
2. Select the desired account from the pull-down list of Account.
858
Parameters Permitted Values
http://localhost/all
0 or 1
Default
Blank
0