Yealink SIP-T4X Administrator's Manual page 389

Example
Parameter-
security.ca_cert
Description
Format
Default Value
Range
Example
Parameter-
security.cn_validation
Description
Format
Default Value
Range
Example
0-Disabled
1-Enabled
security.trust_certificates = 1
Configuration File
<y0000000000xx>.cfg
Configures the type of certificates that the
IP phone uses to authenticate the
connecting server.
Note: If you change this parameter, the IP
phone will reboot to make the change take
effect.
Integer
2
Valid values are:
0-Default certificates
1-Custom certificates
2-All certificates
security.ca_cert = 2
Configuration File
<y0000000000xx>.cfg
Enables or disables the IP phone to
mandatorily validate the CommonName or
subjectAltName of the certificate sent by
the connecting server.
Note: If you change this parameter, the IP
phone will reboot to make the change take
effect.
Boolean
0
Valid values are:
0-Disabled
1-Enabled
security.cn_validation = 1
Appendix
373