Yealink SIP-T4X Administrator's Manual page 390

Administrator's Guide for SIP-T4X IP Phones
Parameter-
security.dev_cert
Description
Format
Default Value
Range
Example
Parameter-
trusted_certificates.url
Description
Format
Default Value
Range
Example
Parameter-
server_certificates.url
Description
Format
374
Configuration File
<y0000000000xx>.cfg
Configures the type of certificates that the
IP phone sends for authentication.
Note: If you change this parameter, the IP
phone will reboot to make the change take
effect.
Integer
0
Valid values are:
0-Default certificates
1-Custom certificates
security.dev_cert = 0
Configuration File
<y0000000000xx>.cfg
Configures the access URL of the certificate
used to authenticate the connecting server.
Note: The certificate you want to upload
must be in .pem, .crt, .cer or .der format.
URL
Blank
String within 511 characters
trusted_certificates.url =
http://192.168.1.20/tc.crt
Configuration File
<y0000000000xx>.cfg
Configures the access URL of the certificate
that the IP phone sends for authentication.
Note: The certificate you want to upload
must be in .pem or .cer format.
URL