Grandstream Networks GXW-4024 User manual

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com
Analog IP Gateway GXW40xx Quick Installation Guide
GXW 4004/8 GXW 4024

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com
Grandstream Analog IP Gateway GXW40xx
Quick Installation Guide
WARNING: Please DO NOT power cycle the GXW40xx during system boot up or
firmware upgrade. You may corrupt firmware images and cause the unit to malfunction.
WARNING: Use only the power adapter included in the GXW40xx package. Using an
alternative non-qualified power adapter may possibly damage the unit.
Overview
The GXW40xx series has a compact and quiet design (no fans) and offers superb audio
quality, rich feature functionality, strong security protection, and good manageability. It is
auto-configurable, remotely manageable and scalable.
The GXW40xx features 4, 8 or 24 port FXS interface for analog telephones. It supports 2 SIP
account profiles, caller ID for various countries/regions, T.38 fax, flexible dialing plans, security
protection (SIPS/TLS/SRTP), comprehensive voice codecs including G.711 (a/u-law), G.723.1,
G.726, G.729A/B/E and iLBC. In addition, GXW4004/4008 has dual 10M/100Mbps network
ports with integrated router, PSTN life line in case of power failure, and an RS232 serial port
for administration.
Equipment Packaging
Unpack and check all accessories
yone device unit
yone Ethernet cable
yone 12V universal power adapter
Application Diagram
There are three scenarios where the GXW40xx series can be effectively used to enable any
business to leverage the benefits of VoIP and the Internet.

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com
Scenario One:
GXW-40xx FXS Gateway Configuration
PBX Scenario, VoIP
Scenario Two:
GXW-40xx FXS Gateway Configuration
No PBX Scenario, VoIP
Scenario Three:
GXW-40xx & GXW-410x Scenario
Maintain toll-free calling across locations

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com
Connect the GXW40xx
Please use the equipment included in the packaging. Using any other power source may
damage the product.
1. Connect one or more standard touch-tone analog telephones (or fax machine) to FXS ports.
2. Connect a PSTN telephone line to LINE port (optional, GXW4004/4008 only).
3. Insert the Ethernet cable into the WAN (GXW4004/4008) or LAN (GXW4024) port and connect
the other end of the Ethernet cable to an uplink port (a switch, router or a modem, etc.).
4. Connect a PC to the LAN port (optional, GXW4004/4008 only).
5. Insert the power adapter into the GXW40xx and connect it to an electrical outlet.
6. Using the GXW40xx embedded web server or IVR (Interactive Voice Prompt) menu, you can
further configure the device using either a static IP or DHCP.
Configuring the GXW40xx using a Web Browser
1. From the analog phone, press *** to get into the IVR menu. Enter option 02
(GXW4004/4008) or 002 (GXW4024) to obtain the GXW40xx’s IP address.
2. For GXW4004/4008, please enable the “WAN side HTTP/Telnet access” option by
entering IVR option 12 and press 9. A reboot or power cycle of the device is required this
change. You can also access the GXW4004/4008’s web configuration from a PC
connected to the LAN port via 192.168.2.1.
3. Type the GXW40xx’s IP address in your PC browser.
4. Log in using password “admin” to configure the unit.
You will need the following information to configure the GXW40xx via the web browser:
1. IP address, subnet mask and gateway IP if using static IP.
2. SIP server and/or Outbound Proxy FQDN or IP address.
3. User subscriber information: User ID, Authentication IP, Password (provided by your VoIP

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com
service provider).
4. GXW40xx supports “Plug-n-Call” if your ITSP (Internet Telephone Service Provider)
provides this automatic provisioning service. Ensure the gateway has an Internet
connection (either DHCP or static IP in your Internet ready network), then power up the
gateway.
5. Please contact your ITSP for additional settings that may be necessary to configure the
device.
Important Settings
Most of the settings on the web configuration pages should be kept to default value. But there
are some settings that need to be configured according to the local network environment.
A. NAT Settings
If GXW40xx is connected behind a firewall, an Outbound Proxy or a STUN server must be
configured to solve the NAT issue. Here are four settings that can be useful in such a scenario:
1. STUN Server (under Advanced Settings page)
Enter a STUN Server IP or FQDN in this field.
2. Outbound Proxy (Under Profile pages)
Enter an Outbound Proxy server IP or FQDN.
3. Use Random Ports (under Advanced Settings page)
By default, this field is set to No. It may needs to be set to “Yes” depending on your network
environment.
4. NAT Traversal (under the Profile pages)
Set to Yes.

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com
B. DTMF Methods
Under Profile pages, there are three DTMF modes to choose from:
yDTMF in-audio
yDTMF via RTP (RFC2833)
yDTMF via SIP INFO
One or more DTMF methods can be selected at the same time.
C. Preferred VOCODER (Codec)
Under Profile pages, user can choose from the following different codecs:
PCMU (G711u), PCMA (G711a), G729A/B/E, G723, G726-16/24/32/40 and iLBC.
D. Firmware Upgrade
Under Advanced Settings page, enter “Firmware Server Path” (IP address or FQDN) under
“Firmware Upgrade and Provisioning” field. Select upgrade protocol TFTP, HTTP or HTTPS
accordingly. By default, “Always Check for New Firmware at Boot up” is selected.
E. Factory Reset
Below are the steps to reset the unit to factory default via the reset button.
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 pin in this hole, and press for about 10 seconds till LED changes and a minor
click sound.
4. Take out the pin. All configuration settings are restored to factory settings.
Grandstream Networks, Inc. Corporate Headquarters
www.grandstream.com
[email protected]
1297 Beacon Street, 2nd Floor,
Brookline, MA USA 02446
Tel : [phone] – 9300
Fax: [phone] – 1987

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com
About Grandstream Networks
Grandstream Networks, Inc. is an award-winning designer and manufacturer of next generation IP
voice & video products for broadband networks. Grandstream’s products deliver superb sound and
picture quality, rich telephony features, full compliance with industry standards, and broad
interoperability with most service providers and 3rd party SIP based VoIP products. Grandstream is
consistently recognized in the VoIP industry for their innovation, affordability and superior value in their
products. Grandstream Networks is a private company headquartered in Brookline, MA with offices in
Los Angeles, Dallas and China. For more information, please visit www.grandstream.com.
Declaration of Conformity for GXW4004/8:
Declaration of Conformity for GXW4024:

Grandstream Networks, Inc., 1297 Beacon St., 2nd Flr, Brookline, MA 02446 USA
Tel: [phone], FAX: [phone]
www.grandstream.com