Grandstream Networks GXW-410x Quick Installation Manual page 7

C. NAT Settings
If you are planning to keep the gateway within a private network behind a firewall, we
recommend using STUN Server. There are 3 settings that are useful in such a scenario:
1. STUN Server (under Advanced Settings webpage).
2. Enter a STUN Server IP (or FQDN) that you may have, or look up a free public
STUN Server on the internet and enter it on this field. If using Public IP, keep this
field blank.
3. Use Random Ports (under Advanced Settings webpage)
a. This setting depends on your network settings. Set this to "Yes" or "No",
based on your network settings. If using a Public IP, set this to No.
b. NAT Traversal (under the Profile web pages).
c. Set NAT Traversal to Yes when gateway is behind firewall on a private
network.
D. Preferred VOCODER (Codec)
Under Profile webpage, you can choose from 5 different codecs:
1. PCMU (or G711u)
2. PCMA (or G711a)
3. G729A/B
4. G723.1
5. GSM
E. Firmware Upgrade
Under Advanced Settings webpage, enter your TFTP or HTTP Server IP address (or FQDN) next
to the "Firmware Upgrade: "Upgrade Server" field. Select via TFTP or HTTP accordingly. If you
plan to perform Automatic Upgrade, set 'firmware upgrade' to "Yes", otherwise select "No" (this
process ensures the system checks for upgrades every time the GXW410x is rebooted).
F. Factory Reset
The ONLY way to reset default factory settings is through the following steps:
1. Unplug the Ethernet cable.
2. Locate a needle-sized hole on the back panel of the gateway unit next to the power
connection.
3. Enter a needle like object in this hole and keep it pressed for about 7 seconds.
4. The LAN port LEDs (green and orange) go off and on simultaneously; this indicates
the reset was successful.
5. All settings are erased and reset to factory settings.
For additional support, email
www.grandstream.com
support@grandstream.com
info@grandstream.com
OR call tech support @ 617-566-9300.
GXW-410x Quick Install Guide, p. 7