User's Manual

P a g e | 44
GXW42xx User Manual
Version 1.0.5.43
Validate Server Certificates
This feature allows users to validate server certificate with our trusted list
of TLS connections. Default is enabled. The device needs to reboot after
changing the setting.
Trusted CA
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”.
Date and Time
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.