User's Manual Part 2

Grandstream Networks, Inc. GXV3175 USER MANUAL Page 40 of 68
FIRMWARE VERSION 1.0.0.32 Updated : 11/2010
Username
Connection Request
Password
Enter connection request password
Maintenance/OpenVPN Settings
OpenVPN Enable
This enables/disables OpenVPN functionality. The default setting is
No. To use OpenVPN functionality, it requires user to have access to
an OpenVPN server.
OpenVPN Server
Address
The URL/IP address for the OpenVPN server.
OpenVPN Server Port
The network port for the OpenVPN server. By default, it is set to
1194.
OpenVPN CA
OpenVPN CA file (ca.crt) required by the OpenVPN server for
authentication purposes. Press “Upload” to upload the
corresponding file to the phone.
OpenVPN Client
Certificate
OpenVPN Client certificate file (*.crt) required by the OpenVPN
server for authentication purposes. Press “Upload” to upload the
corresponding file to the phone.
OpenVPN Client Key
The OpenVPN Client key (*.key) required by the OpenVPN server for
authentication purposes. Press “Upload” to upload the
corresponding file to the phone.
NOTE: To use OpenVPN functionalities, users must enable OpenVPN and configure all of the
settings related to OpenVPN, including server address, port, OpenVPN CA, certificate and key.
Additionally, the user must also set the SIP account to use “VPN” for the “Nat Traversal” (under
Account-> Network Settings). Reboot the phone after these settings are saved for the changes to
take effect. Once the phone connects to the OpenVPN server and the authentication is correct,
the phone will show the VPN IP address under the Status-> Network Status, but it will still display
the LAN IP on the LCD of the phone.
Maintenance/Device Manager (LCD)
Screen Saver Timeout
(m)
This sets the lapsed idle time needed for the screen saver to appear.
The default setting is 5 minutes.
Screen Saver Interval
(s)xd
The screen saver is a picture slide show. This defines the frequency
to change the picture on the screen for the screen saver.
The default setting is 10 seconds.
LCD Auto Power Off
Time
(m)
This defines the lapsed idle time needed for the LCD to power off
automatically in order to save power. The default setting is 10
minutes.
Maintenance/Device Manager (Headset)
Headset TX Gain (dB)
Transmission gain. It’s a headset setting to control the voice intensity.
The default setting is 0dB.
Headset RX Gain (dB)
Receive gain. It’s a headset setting to control the voice intensity. The
default setting is 0dB.