Grandstream Networks GXW4248 User manual

GXW42XX User Manual www.grandstream.com
Firmware Version 1.0.0.49 [e-mail]
Grandstream Networks, Inc.
Analog IP Gateway GXW4248

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GXW4248 USER MANUAL
INDEX
GNU GPL INFORMATION..........................................................................5
CHANGE LOG ...........................................................................................6
WELCOME.................................................................................................7
GATEWAY GXW4248 OVERVIEW........................................................................................................7
SAFETY COMPLIANCE........................................................................................................................7
WARRANTY...........................................................................................................................................7
CONNECT YOUR GXW4248 GATEWAY ...................................................9
EQUIPMENT PACKAGING ...................................................................................................................9
CONNECT THE GXW4248 ...................................................................................................................9
GXW4248 FEATURES .............................................................................13
SOFTWARE FEATURES OVERVIEW ................................................................................................13
HARDWARE SPECIFICATION............................................................................................................14
GXW4248 LCD MENU.........................................................................................................................15
FIGURE 3: LCD MENUBASIC OPERATIONS.........................................16
BASIC OPERATIONS ..............................................................................17
UNDERSTANDING GXW VOICE PROMPTS.....................................................................................17
PLACING A PHONE CALL ..................................................................................................................18
PHONE OR EXTENSION NUMBERS..........................................................................................18
DIRECT IP CALLS........................................................................................................................19
CALL HOLD.........................................................................................................................................20
CALL WAITING....................................................................................................................................20
CALL TRANSFER................................................................................................................................20
BLIND TRANSFER.......................................................................................................................20
ATTENDED TRANSFER ..............................................................................................................21
3-WAY CONFERENCING....................................................................................................................21
HUNTING GROUP ..............................................................................................................................21
INTER-PORT CALLING.......................................................................................................................23
SENDING AND RECEIVING FAX .......................................................................................................24
SUPPORT RADIUS PROTOCOL........................................................................................................24

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CALL FEATURES ....................................................................................25
CONFIGURATION GUIDE........................................................................27
CONFIGURING GXW4248 VIA VOICE PROMPT ..............................................................................27
CONFIGURING GXW4248 WITH WEB BROWSER ..........................................................................27
ACCESS THE WEB CONFIGURATION MENU...........................................................................28
IMPORTANT SETTINGS.....................................................................................................................28
NAT SETTINGS............................................................................................................................28
DTMF METHODS.........................................................................................................................29
PREFERRED VOCODER (CODEC)............................................................................................29
SAVING THE CONFIGURATION CHANGES......................................................................................48
REBOOTING FROM REMOTE...........................................................................................................49
CONFIGURATION THROUGH A CENTRAL SERVER.......................................................................49
SOFTWARE UPGRADE...........................................................................50
FIRMWARE UPGRADE THROUGH TFTP/HTTP/HTTPS..................................................................50
INSTRUCTIONS FOR LOCAL FIRMWARE UPGRADE:....................................................................51
CONFIGURATION FILE DOWNLOAD................................................................................................51
FIRMWARE AND CONFIGURATION FILE PREFIX AND POSTFIX ..................................................52
MANAGING FIRMWARE AND CONFIGURATION FILE DOWNLOAD..............................................52
RESTORE FACTORY DEFAULT SETTING .............................................53
FACTORY RESET...............................................................................................................................53
RESET BUTTON..........................................................................................................................53
IVR COMMAND............................................................................................................................53

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TABLE OF FIGURES
GXW4248 User Manual
Figure 1: Diagram of GXW4248 Panel .......................................................................................................10
Figure 2: 50 Pin Telco Connector................................................................................................................11
Figure 3: LCD Menu....................................................................................................................................16
TABLE OF TABLES
GXW4248 User Manual
Table 1: Definitions of the GXW Connectors..............................................................................................10
Table 2: Definitions of the GXW Display Panel..........................................................................................10
Table 3: GXW4248 Software Features ......................................................................................................13
Table 4: Hardware Specification of GXW4248 gateway ............................................................................14
Table 5: Definitions of the GXW Voice Prompts.........................................................................................17
Table 6: Call Features Table (Star Code)...................................................................................................25
Table 7: Status............................................................................................................................................30
Table 8: Maintenance.................................................................................................................................31
Table 9: Advanced settings ........................................................................................................................36
Table 10: Profiles........................................................................................................................................37
Table 11: FXS Ports....................................................................................................................................48
CONFIGURATION GUI INTERFACE EXAMPLES
GXW4248 User Manual
http://www.grandstream.com/products/gxw_series/GXW42xx/documents/GXW42xx_gui.zip
1. SCREENSHOT OF ADVANCED SETTINGS CONFIGURATION PAGE
2. SCREENSHOT OF BASIC SETTINGS CONFIGURATION PAGE
3. SCREENSHOT OF FXS PORTS CONFIGURATION LOGIN PAGE
4. SCREENSHOT OF PROFILE 1CONFIGURATION PAGE
5. SCREENSHOT OF PROFILE 2CONFIGURATION PAGE
6. SCREENSHOT OF STATUS PAGE

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GNU GPL INFORMATION
GXW4248 firmware contains third-party software licensed under the GNU General Public License (GPL).
Grandstream uses software under the specific terms of the GPL. Please see the GNU General Public
License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
http://www.grandstream.com/support/faq/gnu_gpl .

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CHANGE LOG
This section documents significant changes from previous versions of GXW4248 user manuals. Only
major new features or major document updates are listed here. Minor updates for corrections or editing
are not documented here.

FIRMWARE 1.0.3.4 GXW4248 USER MANUAL PAGE 7 OF 54
WELCOME
Thank you for purchasing the Grandstream GXW4248 Analog FXS IP Gateway. The GXW4248 offers an
easy to manage, easy to configure IP communications solution for any business with virtual and/or branch
locations. The GXW4248 supports popular voice codecs and is designed for full SIP compatibility and
interoperability with third party SIP providers, thus enabling you to fully leverage the benefits of VoIP
technology, integrate a traditional phone system into a VoIP network, and efficiently manage
communication costs.
This manual will help you learn how to operate and manage your GXW FXS Analog IP Gateway and
make the best use of its many upgraded features including simple and quick installation, multi-party
conferencing, and direct IP-IP Calling. This IP Analog Gateway is very easy to manage and scalable,
specifically designed to be an easy to use and affordable VoIP solution for the small – medium business
or enterprise.
GATEWAY GXW4248 OVERVIEW
The new GXW4248 has a compact and quiet design and offers superb audio quality, rich feature
functionality, strong security protection, and good manageability. It is auto-configurable, remotely
manageable and scalable.
The GXW4248 features 48 port FXS interface for analog telephones, dual 10/100/1000Mbps network
ports, and RJ21 analog port. In addition, it supports the option of 4 SIP Server profiles, caller ID for
various countries/regions, T.38 fax, flexible dialing plans, security protection (SIPS/TLS), comprehensive
voice codec including G.711 (a/u-law), G.723.1, G.726(16/24/32/40 bit rates), iLBC and G.729.
SAFETY COMPLIANCE
The GXW4248 is compliant with various safety standards including FCC/CE. Its power adapter is
compliant with UL standard. Warning: use only the power adapter included in the GXW4248 package.
Use of alternative power adapter may permanently damage the unit.
WARRANTY
Grandstream has a reseller agreement with our reseller customers. End users should contact the
company from whom the product was purchased, for replacement, repair or refund.

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If you purchased the product directly from Grandstream, contact your Grandstream Sales and Service
Representative for an RMA (Return Materials Authorization) number. Grandstream reserves the right to
change the warranty policy without prior notification.
Caution: Changes or modifications to this product not expressly approved by Grandstream, or operation
of this product in any way other than as detailed by this User Manual, could void your manufacturer
warranty.
Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for
any purpose without the express written permission of Grandstream Networks, Inc. is not permitted.

FIRMWARE 1.0.3.4 GXW4248 USER MANUAL PAGE 9 OF 54
CONNECT YOUR GXW4248 GATEWAY
Connecting the GXW4248 gateway is easy. Before you begin, please verify the contents of the
GXW4248 package.
EQUIPMENT PACKAGING
Unpack and check all accessories. Equipment includes:
•one device unit
•one RJ45 Ethernet cable
•one 24V 6.5A universal power adapter
•mount
CONNECT THE GXW4248
Follow these four (4) steps to connect your GXW4248 gateway to the Internet and access the unit’s
configuration pages.
1. Connect standard touch-tone analog phones to the GXW4248’s RJ21 port with a RJ11 to R21
cable.
2. Insert an RJ45 Ethernet cable into the WAN port of GXW4248 and connect the other end to an
uplink port (a router or a modem, etc.)
3. Plug the power adapter into the GXW4248 gateway into a power outlet.
Follow the instructions from the topic “Configuring GXW 42XX with Web Browser” for initial configuration.
The GUI pages will guide you through the remaining steps to set-up your gateway.

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FIGURE 1: DIAGRAM OF GXW4248 PANEL
TABLE 1: DEFINITIONS OF THE GXW CONNECTORS
Ethernet port
Connect to the internal LAN network or router
RESET
Factory Reset button. Press and hold for a while to reset factory default settings.
DC IN
Power adapter connection
Analog port
Connect to analog phones / fax machines with an RJ21 to RJ11 cable
FXS ports
FXS port to be connected to analog phones / fax machines.
Note: Once the GXW4248 is turned on and configured, the front display panel indicates the status of the
unit.
TABLE 2: DEFINITIONS OF THE GXW DISPLAY PANEL
Act LED
Remains ON if plug the network cable.
LINK LED
Indicates Ethernet port activity.
FXS LED
Indicate status of the respective FXS Ports on the back panel
Busy - ON (Solid Green)
Available - OFF
Slow blinking FXS LEDs indicates Voice Mail for that port.
All FXS LEDs slow blinking indicates provisioning.