Grandstream Networks GHP6 Series - Custom Certificate; Validate Server Certificates; Trusted CA; Load CA Certificates

Trusted CA
Date and Time
Syslog
Custom Certificate
This feature allows users to upload to this device their own certificate signed by
custom CA certificate to manage client authentication.
Validate Server Certificates
This feature allows users to validate server certificate with our trusted list of TLS
connections. The device needs to reboot after changing the setting. Default value
isNo.
Disable Weak TLS Cipher Suites This feature allows users to Enable or Disable Weak TLS Cipher Suites.
MinimumsTLS Version Configures the minimum TLS version supported by the phone. Default is Unlimited.
Maximum TLS Version Configures the maximum TLS version supported by the phone. Default is Unlimited.
Trusted CA Certificate
(A, B, C, D)
The certificate entered here will be accepted as valid CA for authenticating the
server TLS certificate.
Load CA Certificates
This feature specifies which CA Certificates the gateway needs to trust. Following
options are available:
● Built-in trusted certificates: The gateway will verify the server certificate based
on the built-in trusted certificates list.
● Custom trusted certificates: The gateway will verify the server certificate based
on the custom trusted certificates list previously uploaded by the user.
● All trusted certificates: The gateway will verify the server certificate based on the
built-in and custom trusted certificates.
Default is “Built-in Trusted Certificates”.
NTP Server
URI or IP address of the NTP (Network Time Protocol) server. Used by the phone to
synchronize the date and time. An extensive list of public NTP servers can be found
athttp://www.ntp.org
NTP Update Interval Defines the update interval (in minutes) to obtain the date and time from the server.
Allow DHCP Option 42 to NTP Server
Default isYes. DHCP Option 42 is enabled, the NTP server can be changed. If set
toNowill disable the NTP server be changed.
Time Zone Configures the date/time used on the phone according to the specified time zone.
Self-Defined Time Zone
This parameter allows the users to define their own time zone. For syntax and
examples, please refer to user manual.
Allow DHCP Option 2 to override time
zone
Default isYes. DHCP Option 2 is enabled, the time zone can be offset. If set toNo, it
will disable the time zone be offset.
Syslog Protocol
This feature allows users to configure the protocol used to send syslog. Protocol
supported are:UDP,SSLandTLS. Default is:UDP.