Figure 3: LCD Menu .................................................................................................................................... 16
T
ABLE 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
GXW4248 firmware contains third-part y software licensed un der the GNU Gen eral Public Lice nse (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 .
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 5 OF 56
Page 6
CHANGE LOG
This section documents significant changes from previous versions of GXW4248 user manuals. Only
major new features or major docum ent updates are listed here. Minor updates for cor rections or ed iting
are not documented here.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 6 OF 56
Page 7
WELCOME
Thank you for purchasing t he Grands tream 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 direc t IP-IP Calling. This IP Analog G ateway is very easy to manage and scalable,
specifically designed t o be an easy to use and affordable VoIP solution for the small – medium bus iness
or enterprise.
GAT E WAY 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/r egions, T.38 fax, flexible dialing plans, security protectio n (SIPS/TLS), com prehensive
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 a dapter 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.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 7 OF 56
Page 8
If you purchased the product directly from Grandstream, contact your Grandstr eam Sales and Service
Representative for an RMA (Return Materials Author ization) number. Grandstream reserves the right to
change the warrant y polic y with out pr ior notif icat io n.
Caution: Changes or modificatio ns to t his product not ex press ly appr oved by Grands trea m, or operation
of this product in any way other than as detailed by this User Manual, could void your manufacturer
warranty.
Reproduction or transm ittal of the entire or any part, in any for m 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 GXW42XX USER MANUAL PAGE 8 OF 56
Page 9
CONNECT YOUR GXW4248 GAT E WAY
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 anal og 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 “
The GUI pages will guide you through the remaining steps to set-up your gateway.
Configuring GXW 42XX wit h Web Brows er” for init ial config uration.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 9 OF 56
Page 10
Ethernet port
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.
Act LED
Remains ON if plug the network cable.
LINK LED
Indicates Ethernet port act iv ity.
FXS LED
Indicate status of the respective FXS Ports on the back panel
FIGURE 1: DIAGRAM OF GXW4248 PANEL
TABLE 1: DEFINITIONS OF THE GXW CONNECTORS
Connect to the internal LAN network , router or PC
Note: O nce the GXW4248 is tur ned on and configured, th e front disp lay panel indicates the status of th e
unit.
TABLE 2: DEFINITIONS OF THE GXW DISPLAY PANEL
Busy - ON (Solid Green)
Available - OFF
Slow blinking FXS LEDs indicates Voice Mail for that port.
All FXS LEDs slow blinking indicates provisioning.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 10 OF 56
Page 11
Pin
Signal
Pin
Signal
1
RING1
26
TIP1
2
RING2
27
TIP2
3
RING3
28
TIP3
4
RING4
29
TIP4
5
RING5
30
TIP5
6
RING6
31
TIP6
7
RING7
32
TIP7
8
RING8
33
TIP8
9
RING9
34
TIP9
10
RING10
35
TIP10
11
RING11
36
TIP11
12
RING12
37
TIP12
13
RING13
38
TIP13
14
RING14
39
TIP14
15
RING15
40
TIP15
16
RING16
41
TIP16
17
RING17
42
TIP17
18
RING18
43
TIP18
19
RING19
44
TIP19
20
RING20
45
TIP20
21
RING21
46
TIP21
22
RING22
47
TIP22
23
RING23
48
TIP23
24
RING24
49
TIP24
FIGURE 2: 50 PIN TELCO CONNECTOR
NOTE:
The last pair of pin 25 and 50 on each RJ21 is not connected.
All LED lights display green when ON.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 11 OF 56
Page 12
LINK LED and ACT LED blinking in following status indicate different network speed.
10M: LINK and ACT all blink, ACT blinks faster then LINK
100M: LINK and ACT all blink, ACT blinks the same fast as LINK
1000M: LINK does not blink, only ACT blink
Slow blinking of FXS LED together indicates a firmware upgrade or provisioning state.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 12 OF 56
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GXW4248 FEATURES
GXW4248
Telephone Interfaces
SIP Provisioning
Network Interface
NG (comfort noise generation) and PLC (packet
loss concealment), LEC with NLP Packetized Voice Protocol Unit (supports
The GXW4248 is a next generation IP voice gatewa y that is i ntero per ab le and compatible with leading IPPBXs, Soft switches and SIP platforms. The GXW4248 FXS gateway is auto-configurable, remotely
manageable and sca lable. The GXW4248 offers superb v oice quality, traditional telephony funct ionality,
easy deployment, and 48 FXS ports. Each model feat ures flexible d ialing plans , integrated call routing to
support a pure IP network call and an external power supply.
SOFTWARE FEATURES OVERVIEW
• 48 FXS ports
• RJ-45 Ethernet ports
• 4 configurable SIP profiles
• Supports Voice Codecs:
G711(a/µ, Annex I & II), G723.1A, G726 (AD PCM with 16/24/32/40 bit rates), G729 A/B, iLBC,
T.38 Fax
• Comprehensive Dial Plan support for Outgoing calls.
• G.168 Echo Cancellation
• Voice Activation Detection (VAD), Comfort Noise Generation (CNG), and Packet Loss
Concealment (PLC)
•Supports PSTN/PBX analog telephone sets or analog trunks
The hardware specifications of the GXW4248 are detailed in Table 4.
TABLE 4: HARDWARE SPECIFICATION OF GXW4248 GATEWAY
GXW4248
Telephone Interface
FXS LEDs
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 14 OF 56
2 RJ21 Ports only
48
Page 15
Network interface
Power Input
Input
LAN, Single 10/100/1000 BASE-TX,RJ45
:100-240VAC, 50/60Hz
Output: 24V DC, 6.25A
LCD screen
Telco connector
RJ-11 connectors
NAND Flash
DRAM
Function Buttons
Environmental
Mounting
Onhook Voltage
Ring Voltage
Ring Frequency
Short Haul Loop
Outdoor Protection
128×32 pixel
2 RJ21 (50 pins)
No
64MB
128MB (+ separate 8MB if with a slave processor)
1 button for Reset/Factory Reset
Operation: 0°C to 45°C
Storage: -20°C to 60°C
Humidity: 10% to 90% Non-condensing
Desktop and Rack mount
Fixed, 48V
50Vrms (balanced ringing)
20-50Hz
2REN: Up to 1km on 24 AWG wire
Over-voltage Protection and surge immunity
Signaling
EMC
Safety
Compliance
FXS Loop-start
EN55022/EN55024 and FCC part15 Class B
UL
FCC, CE, C-Tick
GXW4248 LCD MENU
The GXW4248 gateway inc ludes a sm all LC D sc reen f or th e dis pla y of bas ic inf or m ation. The L CD has a
display area of 128x32 pixels, which will allow for 2 lines of text with a 16px height limitation per line.
The LCD menu is showed as Figure 3: LCD Menu. Menu is navigated by the Down-arrow and OK button.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 15 OF 56
Page 16
FIGURE 3: LCD MENU
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 16 OF 56
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BASIC OPERATIONS
Menu
Voice Prompt
User’s Options
Main Menu
“Enter a Menu Option”
Enter “*” for the next menu option
001
“DHCP Mode”, “PPPoE
Enter ‘9’ to toggle the selection
If user selects “Static IP Mode”, user need configure all the IP
05. If user selects
“Dynamic IP Mode”, the device will retrieve all IP address
tically when user reboots
002
“IP Address “ + IP address
The current WAN IP address is announced
003
“Subnet “ + IP address
Same as Menu option 002
004
“Gateway “ + IP address
Same as Menu option 002
005
“DNS Server “ + IP address
Same as Menu option 002
007
Preferred Vocoder
Enter “9” to go to the next selection in the list:
010
“MAC Address”
Announces the Mac address of the unit.
013
Firmware Server IP
Announces current Firmware Server IP address. Enter 12 digit
014
Configuration Server IP
Announces current Config Server Path IP address. Enter 12 digit
015
Upgrade Protocol
Upgrade protocol for firmware and configuration update. Enter
UNDERSTANDING GXW VOICE PROMPTS
GXW4248 has a built-in voice prom pt menu for simple device configuration. To enter the voice prompt
menu, press *** on the standard analog phone connected to any FXS port.
TABLE 5: DEFINITIONS OF THE GXW VOICE PROMPTS
Enter “#” to return to the main menu
Enter “001 – 005, 007, 010, 013 - 017, 047, 086 or 099” Menu
option
Enter “9” for confirming a option
Mode ”or “Static IP Mode”
address information through menu 002 to 0
Address
information from DHCP server automa
the device.
Enter 12-digit new IP address if in Static IP Mode.
• PCM U
• PCM A
• iLBC
• G-726
• G-723
• G-729
new IP address.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 17 OF 56
Address
new IP address.
Page 18
“9” to toggle between TFTP and HTTP
016
Firmware Version
Firmware version information.
017
Firmware Upgrade
Firmware upgrade mode. Enter “9” to rotate among the following
047
“Direct IP Calling”
Enter the target IP address to make a direct IP call, after dial
086
Voice Mail
Number of voice mails
099
“RESET”
Enter “9” to reboot the device; or
700-748
Phone calls between
different ports of the same
GW4248
GXW4248 support inter-port calling from voice menu for easy
“Invalid Entry”
Automatically returns to Main Menu
three options:
1. always check
2. check when pre/suffix changes
3. never upgrade
tone. (See “Make a Direct IP Call”.)
Enter MAC address to restore factory default setting
(See Restore Factory Default Setting section)
test/verification in factory
“700” Ring all ports and connect to first port pick up the call
“701-748” Call individual port
Five Success Tips when using the Voice Prompt
1. “*” shifts down to the next menu option
2. “#” returns to the main menu
3. “9” functions as the ENTER key in many cases to confirm an option
4. All entered digit seque nces have known lengths - 2 digits for menu option and 12 digits for IP
address. For IP address , add 0 before the d igits if the digits are less than 3 (i.e. - 192.168.0.26
should be key in like 192168000026. No decimal is needed).
5. Key entry cannot be deleted but the phone may prompt error once it is detected
PLACING A PHONE CALL
PHONE OR EXTENSION NUMBERS
1. Dial the number dir ectly and wait for 4 sec onds ( To change the default value, modify the followin g
setting - “No Key Entry Timeout”)
or
2. Dial the number directly and press # (Use # as dial key” must be configured in web configuration).
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 18 OF 56
Page 19
Examples:
1. Dial a number (e.g. (626) 666-7890), first enter the prefix number (usually 1+ or international
code) followed by the phone number. Press # or wait for 4 seconds. Check with your VoIP
service provider for further details on prefix numbers.
DIRECT IP CALLS
Direct IP calling all ows t wo parties, that is, a FXS Port with an a nalog phon e and another VoIP Device, to
talk to each other in an ad hoc fashion without a SIP proxy.
Elements necessary to completing a Direct IP Call:
1. Both GXW4248 and other VoIP Device, have public IP addresses, or
2. Both GXW4248 and other VoIP Device are on the same LAN using private IP addresses, or
3. Both GXW4248 and other VoIP Device can be connec ted through a rout er using public or priv ate
IP addresses (with necessary port forwarding or DMZ).
GXW4248 supports two ways to make Direct IP Calling:
Using IVR
1. Pick up the analog phone then access the voice menu prompt by dial “***”
2. Dial “047” to access the direct IP call menu
3. Enter the IP address using format ex. 192*168*0*160 after the dial tone.
Using Star Code
1. Pick up the analog phone then dial “*47”
2. Enter the target IP address using same format as above.
Note: NO dial tone will be played between step 1 and 2.
Destination ports can be specified by using “*” (encoding for “:”) followed by the port number.
Examples:
a) If the target IP address is 192.168.0.160, the dialing convention is
*47 or Voice Pr o mpt with option 047, then 192*168*0*160.
followed by pressing the “#” ke y if it is configured as a send key or wait 4 second s. In this case,
the default destination port 5060 is used if no port is specified.
b) If the target IP address/port is 192.168.1.20:5062, then the dialing convention would be:
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 19 OF 56
Page 20
*47 or Voice Prompt with option 047, then 192*168*0*160*5062 followed b y pressing the “#”
key if it is configured as a send key or wait for 4 seconds.
CALL HOLD
Place a call on hold b y pressing the “flash” button on the analog p hone (if the phone has that button).
Press the “flash” butto n again to release the pr e vious l y h eld C a ller an d r esume conversation. If no “ f lash”
button is available, use “hook flash” (toggle on-off hook quickly). You may drop a call using hook flash.
CALL WAITING
Call waiting tone (2 short b eeps) indicates an incom ing call, if the call waiting f eature is enabled. Toggle
between incoming ca ll and curr ent call by pres sing the “f lash” button. First call is placed on hold. Press
the “flash” button to toggle between two active calls.
CALL TRANSFER
BLIND TRANSFER
Assume that call Caller A and B are in conversation. A wants to Blind Transfer B to C:
3. Caller A presses FLASH on the analog phone to hear the dial tone.
4. Caller A dials *87 then dials caller C’s number, and then # (or wait for 4 seconds).
5. Caller A will hear the confirm tone. Then, A can hang up.
NOTE: “Enable Call Feature” must be set to “Yes” in web configuration page.
Caller A can place a call on hold and wait for one of three situations:
1. A quick confirmation tone (similar to c all waiting tone) followed by a dial tone. This indicates th e
transfer is successful (transferee has received a 200 OK from transfer target). At this point, Caller
A can either hang up or make another call.
2. A quick busy tone followed by a restored call (on supported platforms only). This means the
transferee has receive d a 4xx response for the INVIT E and we will try to recover the call. The
busy tone is just to indicate to the transferor that the transfer has failed.
3. Continuous busy ton e. The phone has t imed out. Note: cont inuous busy tone does not ind icate
the transfer has b een suc c es sf ul, nor does it indic at e t he tr a ns f er has f ail ed. It often means there
was a failure to receive second NOTIFY – check firmware for most recent release.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 20 OF 56
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ATTENDED TRANSFER
Assume that Caller A and B are in conversation. Caller A wants to Attend Transfer B to C:
1. Caller A presses FLASH on the analog phone for dial tone.
2. Caller A then dials Caller C’s number followed by # (or wait for 4 seconds).
3. If Caller C answers the call, Caller A and Caller C are in convers ation. Then A can hang up to
complete transfer.
4. If Caller C does not answer the call, Caller A can press “flash” to resume call with Caller B.
NOTE: W hen Attended Transfer fails and A hangs up, the GXW4248 will ri ng back user A to remind A
that B is still on the call. A can pick up the phone to resume conversation with B.
3-WAY CONFERENCING
The GXW4248 supports Bellcore style 3-way Conference.
Instructions for 3-way conference:
Assuming that call party A and B are in conversation. A (GXW4248) wants to bring C in a conference:
1. A presses FLASH (on the analog phone, or Hook Flash for old model phones) to get a dial tone.
2. A dials C’s number then # (or wait for 4 seconds).
3. If C answers the call, then A presses FLASH to bring B, C in the conference.
4. If C does not answer the call, A can press FLASH back to talk to B.
5. If A presses FLASH during conference, C will be dropped out.
6. If A hangs up, the conferenc e will be terminated or transf er B to C if “Transfer on Conference
Hangup” set to yes
HUNTING GROUP
This feature allows the use r to setup a single SI P account on the gatewa y and have t he ability to use all
FXS ports to make/receive calls . Using this feature, all ports active in same Hunting Group will have the
same phone number and in c om ing cal ls will be d is trib u ted in a Linear or Circ ular manner among the ports
active in that Hunting G roup. The num ber of hunting groups is lim ited b y the num ber of ports each GXW
model has - i.e. each port can be i ts own Hunting Group. T he most practical and efficient way to use
Hunting Groups is to assign 2 or 3 ports to separate Hunting Groups.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 21 OF 56
Page 22
One additional and popular way to use the Hunting Group f eature is called “mu ltiplexed analog l ines”. In
this configuration, a legacy PBX system with 8 FXO trunks can be connected to 8 GXW 42xx ports
configured as a Hunting Group. The GXW can be registered to a SIP server provider using only one
phone number. If the SIP service pr ovider allo ws multiple ca lls to the sam e number, the GXW will allo w 8
concurrent calls to the s ame SIP number. All office members can be reache d remotely using the same
phone number in a round-robin fashion.
Example Configuration of a typical Hunting Group:
1. Configure the SIP account from your VoIP Service Provider on FXS port 1 under FXS Ports
webpage.
2. Select Active under the Hunting Group drop box for FXS port 1.
3. For the remaining ports (sa y 2, 3 and 4) select 1 for Hunting Group. Ports 2, 3 and 4 are now
active members of the hunting group associated with port 1.
This configurati on will route all calls directed to FXS port 1 to ports 2, 3 and/or 4 in round robin fas hion
respectively if
port 1 is busy or times out. You can configure the ring timeout on the Profile page.
Example configuration of a multiple Hunting Group:
FXS Port #1: SIP UserID and Authenticate ID entered, Hunting group set to "Active"
FXS Port #2: SIP UserID and Authenticate ID left blank, Hunting Group set to "1"
FXS Port #3: SIP UserID and Authenticate ID left blank, Hunting Group set to "1"
FXS Port #4: SIP UserID and Authenticate ID entered, Hunting group set to "Active"
FXS Port #5: SIP UserID and Authenticate ID left blank, Hunting Group set to "4"
FXS Port #6: SIP UserID and Authenticate ID left blank, Hunting Group set to "4"
FXS Port #7: SIP UserID and Authenticate ID entered, Hunting group set to "Active"
FXS Port #8: SIP UserID and Authenticate ID left blank, Hunting Group set to "7"
…
Hunting Group 1 contains ports 1, 2, 3. Hunting Group 4 contains ports 4, 5, 6.
Hunting Group 7 contains ports 7, 8.
Please be aware, the c hoic e of 1 f or por ts 2 an d 3, the c hoice of 4 f or ports 5 a nd 6, th e choic e 7 for port
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 22 OF 56
Page 23
8 is required to indicate that the SIP account tied to port marked as “Active” will be used for all members
of the same Hunting group. Needless to say, those members of the same Hunting group may not be
sequential ports. In follo wing example ports 3, 5 and 7 tied to SIP Accou nt configured in Por t #1 marked
as “Active”, and ports 4,6,8 tied to SIP Account configured in Port #2 marked as “Active” a s well.
Example of not sequential configuration of a multiple Hunting Group:
FXS Port #1: SIP UserID and Authenticate ID entered, Hunting group set to "Active"
FXS Port #2: SIP UserID and Authenticate ID entered, Hunting Group set to "Active"
FXS Port #3: SIP UserID and Authenticate ID left blank, Hunting Group set to "1"
FXS Port #4: SIP UserID and Authenticate ID left blank, Hunting group set to "2"
FXS Port #5: SIP UserID and Authenticate ID left blank, Hunting Group set to "1"
FXS Port #6: SIP UserID and Authenticate ID left blank, Hunting Group set to "2"
FXS Port #7: SIP UserID and Authenticate ID left blank, Hunting group set to "1"
FXS Port #8: SIP UserID and Authenticate ID left blank, Hunting Group set to "2"
…
FXS Port #24: SIP UserID and Authenticate ID left blank, Hunting Group set to "2"
Note: A single call directed to the SIP ac count will NOT result in a ll por ts ringing at the same tim e. They
will ring in the hunting group only. This feature is applicable to incoming calls only.
There are two types of huntin g groups, Linear and Circular. Linear style will sort the call to the low estnumbered available li ne, this is also called “serial hunting”. Circular style wil l distribute the calls "roundrobin". If a call is assigned to lin e 1, the next ca ll goes to 2 and the next to 3. The s uccess ion throughou t
each of the lines continues even if one of the previous lin es becomes available. W hen the en d of th e h unt
group is reached, the hunting starts over at the first line. Lines are skipped if they are still busy on a
previous call. These two hunting styles can be configured from the Profile_x page.
INTER-PORT CALLING
In some cases a user ma y want to mak e phone calls between the phones c onnected t o multiple ports of
the same gateway when it is used as a standalone unit, without the use of a SIP server. This feature will
also be applicable when the gat eway is used with Hunting G roups and is registered to SI P server only
with one master num ber. In such cases users st ill will be able to make inter-por t calls by using the IVR
feature.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 23 OF 56
Page 24
For example, on the GXW4248 inter-port calling is achieved by dialing *** and 7 plus two extra digits
corresponding to the port number. For example the user connected to port 1 can be reached by dialing ***
and 701; the user connected to port 24 can be reached by dialing *** 724.
SENDING AND RECEIVING FAX
GXW4248 supports fax in two modes: 1) T.38 (Fax over IP) and 2) Fax Pass through. T.38 is the
preferred method beca use it is more reliable and work s well in most network conditions. If the ser vice
provider supports T.38, please use this method by selecting T.38 as fax mode
provider does not support T.38, pass-through mode may be used. If you have problems with sending or
receiving Fax, toggle the Fax Tone Detection Mode setting.
(default). If the service
SUPPORT RADIUS PROTOCOL
GXW4248 supports RADIUS for authentication, authorization and billing purposes. Primary and
secondary RADIUS server configurations are available to provide redundancy to this feature. In case
Primary Radius serv er becomes unus able, RADIUS r equests will be autom atically sent to th e secondary
server. W hen at least one R ADUI S s er ver was configured, the device will allo w us er s t o m ake phone c alls
only after authorization f rom RADIUS ser ver has been r eceived. CDR (C all Detail Recor d) is also sent to
the RADIUS server for bil ling purposes. RAIDUS s erver can send requests to terminate c alls when run
out of pre-paid credit.
The GXW4248 will be able to work in VoIP billing environment using redundant double server
configuration. User will be able to configure primary and secondary RADUIS server IP Addresses or
FQDNs. Once at least one RADUIS server was configured, the device will allow users t o make phone
calls only after permission from RADIUS server has been received. In case Primary Radius server
becomes unusable, sec ondary will take role of pr imary and will m anage credit recourses in the network.
Imbedded RADIUS c lient also supports req uest generated b y Radius server t o terminate calls when run
out of pre-paid credit.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 24 OF 56
*73 Cancel Unconditional Call Forward: Dial “*73” and wait for dial tone, then hang up.
*74
*78 Enable Do Not Disturb (DND): When enabled all incoming calls will be rejected.
*79 Disable Do Not Disturb (DND): When disabled, incoming calls will be accepted.
*87 Blind Transfer
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 25 OF 56
Unconditional Call Forward: Dial “*7
for dial tone and hang up. (dial tone indicates successful forward)
Enable Paging Call: Dial “*74” and t
Paging mode.
Page 26
*90
Dial “*90” and then the forwarding number followed by “#”. Wait for dial
number followed by “#”. Wait for
If user hears call waiting beep, flash/hook will switch to the new incoming call. Also used to
*91 Cancel Busy Call Forward: dial “*91”. Wait for dial tone. Hang up.
Busy Call Forward:
tone then hang up.
*92
*93 Cancel Delayed Call Forward: Dial “*93” for a dial tone, then hang up.
Flash/Hook
#
Delayed Call Forward: Dial “*92” and then the forwarding
dial tone then hang up.
switch to a new channel for a new call.
Pressing pound sign will serve as Re-Dial key.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 26 OF 56
Page 27
CONFIGURATION GUIDE
CONFIGURING GXW4248 VIA VOICE PROMPT
DHCP
MODE
Select voice menu option 001 to enable GXW4248 to use DHCP.
STATIC
IPMODE
Select voice menu opti on 001 to enable GXW4248 to use STATIC IP mode, then use opti on 002, 003,
004, 005 to set up IP address, Subnet Mask, Gateway and DNS server respectively.
PPP
OEMODE
Select voice menu option 001 to enable GXW4248 to use PPPoE mode.
F
IRMWARE SERVER IPADDRESS
Select voice menu option 013 to configure the IP address of the firmware server.
C
ONFIGURATION SERVER IPADDRESS
Select voice menu option 014 to configure the IP address of the configuration server.
U
PGRADE PROTOCOL
Select voice menu opti on 015 to choose firm ware and configuration upgrad e protocol. User can c hoose
between TFTP , HTTP, and HTTPS.
F
IRMWARE UPGRADE MODE
Select voice menu option 017 to choose firmware upgrade mode among the following three options:
1) always check, 2) check when pre/suffix changes, and 3) never upgrade
CONFIGURING GXW4248 WITH WEB BROWSER
The GXW4248 gateway has an embedded Web server that allows users to configure the GXW4248
through a web browser.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 27 OF 56
Page 28
ACCESS THE WEB CONFIGURATION MENU
The GXW4248 HTML configuration menu can be accessed via Ethernet port:
To access the HTML configuration menu from the Ethernet port:
1. Follow table 4 to find the Ethernet port IP address.
2. Open a web browser, type in the IP address – for example:
http://GXW4248 -IP-Address(the
GXW4248 IP-Address is the Ethernet IP address for the GXW4248).
NOTE:
•The IVR announces 12 digits IP address, you need to strip out the leading “0” in the IP address.For ex.
IP address: 192.168.001.014, you need to type in http://192.168.1.14 in the web browser.
Once the HTTP request is entered and sent from a web browser, the user will see a log-in screen. There are
two default passwords for the login page:
User Level: Password: Web pages allowed:
End User Level 123 Only Status and Basic Settings
Administrator Level admin Browse all pages
The password is case sensitive with maximum length of 25 characters. The factory default password for End
User and administrator is “123” and “admin” respectively. Only an administrator can access the “ADVA NCED
SETTING”, “Prof ile 1~4”, and “FXS PORTs” conf iguration pages. Please reference the GUI pages using the
following link:
The end-user must configure the following settings according to the local environment.
NOTE: Most settings on the web configuration pages are set to the def au lt value s.
NAT SETTINGS
If you plan to keep the gateway within a private netw ork behind a firewall, we recommend using STUN
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 28 OF 56
Page 29
Server. The following three (3) settings are useful in the STUN Server scenario:
1. STUN Server (under Advanced Settings webpage)
Enter a STUN Server I P (or FQDN) that you ma y have, or look up a free public STUN Server o n the
internet and enter it on this field. If using Public IP, keep this field blank.
2. NAT Traversal (under the Profile web pages)
Set this to Yes when gateway is behind fir e wall on a private network.
DTMF METHODS
DTMF Settings are in Profile pages.
• DTMF in-audio
• DTMF via RTP (RFC2833)
• DTMF via SIP INFO
You can enable set priority of DTMF methods according to your preference, from Priority 1 to 3. This
setting should be based on your server DTMF setting.
PREFERRED VOCODER (CODEC)
The GXW4248 supports a broad range of voic e codec s. Under Profile web pages , choose your prefer red
order of different codecs:
• PCMU/A (or G711µ/a)
• G729
• G723
• G726 (16/24/32/40)
• iLBC
• AAL2 (all G726)
This section will desc ribe the options in the Web configurat ion user interface. As m entioned, a user can
log in as an administrator or end-user.
Functions available for the end-user are:
•STATUS: Displays the network status, acc ount status, software version and MAC -address of the
phone
•MAINTENANCE: Basic se ttings such as basic network, date and time s ettings, and web/telnet
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 29 OF 56
Page 30
access settings can be set here.
System Info
Product Model
Contains the product model info.
Part Number
Product Part Number.
Software Version
Program: This is the main software release. This number is always used for firmware upgrade.
System Up Time
Shows system uptime since the last reboot.
System Time
The time according to NTP server.
Service Status
Shows the status of the VOIP applications.
Network Status
MAC Address
The device ID in hexadecimal format. This is needed for Internet Service Provider
IP Address Mode
Shows the current IP mode.
IP Address
Shows IP address of GXW4248.
Subnet Mask
Shows Subnet Mask of GXW4248.
Gateway
Shows Default Gateway of GXW4248.
DNS Server
Shows DNS Server of GXW4248.
•PROFILE - AUDIO SET TINGS: DTMF, Vocoder, and Analog Line settings can be configured here
for each port.
Additional functions available to administrators are:
• MAINTENANCE: Full settings for network, upgrade/provisioning, TR-069, Security and Syslog.
• ADVANCED SETTINGS: To set advanced Ring Tongs, FXO Failover, and System Features.
• PROFILE X: To configure each of the SIP accounts.
• FXS PORTS: To configure each of the FXS ports and Hunting Groups etc.
TABLE 7: STATUS
current version is 1.0.3.4.
Boot: current version is 1.0.3.2.
Core: current version 1.0.3.3.
Base: current version is 1.0.3.4.
troubleshooting. The MAC address will be used for provisioning and can be found on the label on
original box and on the label located on the bottom panel of the device.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 30 OF 56
Page 31
NAT Traversal
Shows type of NAT the GXW4248 is connected to via its WAN port. It is based on STUN
protocol.
Port Status
Displays relevant information regarding the individual FXS ports. Example:
Network Settings
IP Address Mode
Choose how the IP address obtained on the phone.
Preferred DNS
Enter the preferred DNS server that should be used for DHCP and PPPoE.
DHCP Settings
Host name (Option 12)
Specifies the nam e of the clien t. This field is optional but may be
DHCP Domain
Specifies the DHCP Domain. This value is optional, but may be
Vendor Class ID (Option
Used by clients and servers to exchange vendor class ID.
Static IP Settings
Configure IP Addr ess, Subnet M ask, Gateway, DNS Server 1, and DNS Server 2.
QoS Settings
Layer 3 QoS
Defines the Layer 3 QoS parameter. This value is used for IP
Layer 2 QoS
Value used for layer 2 VLAN tag. Default setting is blank.
Layer 2 QoS 802.1p
Assigns the priority value of the Layer 2 QoS packets. Valid range is
STUN Settings
Use STUN
Yes or No. Default is No.
STUN server
The IP address or Domain name of the STUN server. Only non-
Port Hook SIP Registration DND Forward Busy Forward Delayed Forward
FXS1 On Hook Registered No 613
FXS2 Off Hook Registered No 614
FXS3 On Hook Not Registered No
FXS4 On Hook Registered Yes 615
FXS… … … …
TABLE 8: MAINTENANCE
Server
60)
802.1Q/VLAN Tag
Priority Value
required by Internet Service Providers.
required by Internet Service Providers.
Precedence, Diff-Serv or MPLS.
0 to 7.
symmetric NAT routers work with STUN.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 31 OF 56
Page 32
Number of STUN
The Number of STUN response misses allowed before
Keep-Alive Interval
Specifies in seconds how often the phone sends a blank UDP packet
to the SIP server in order to keep the "ping hole" on the NAT router to
Upgrade and Provisioning
Lock Keypad
If set to “Yes”, the configuration update via keypad is disabled.
Firmware Upgrade
Specifies how firmware upgrading and provisioning request to be sent.
e options to choose from: “Always Check for New Firmware”, “Check New
Firmware only when F/W pre/suffix changes”, and “Always Skip the Firmware Check”.
XML Config File
The password used for encrypting the XML configuration file using OpenSSL.
HTTP/HTTPS User
HTTP/HTTPS
Upgrade via
Firmware
IP address or domain name of firmware server. That URL of the server that hosts the firmware
Config Server
IP address or domain name of configuration server. The server hosts a copy of the configuration
Firmware File
Default is blank. If configured, GXW4248 will request firmware file with the prefix. This setting is
Firmware File
Default is blank. This setting is useful for Internet Telephone Service Providers. End users should
Config File
Default is blank. This setting is useful for Internet Telephone Service Providers. End users should
Config File
Default is blank. This setting is useful for Internet Telephone Service Providers. End users should
Update
and Provisioning
Password
Name
Password
Response Misses
Allowed
There are thre
This is required for the phone to decrypt the encrypted XML configuration file.
The user name needed to authenticate withthe HTTP/HTTPS server.
The password needed to authenticate with the HTTP/HTTPS server.
restarting DHCP. The minimum is 3 misses.
open. The default is 20 seconds.
Server Path
Path
Prefix
Postfix
Prefix
Postfix
Allows users to choose the firmware upgrade method via TFTP, HTTP or HTTPS.
release. The default server is: fm.grandstream.com/gs
file to be installed on the gateway. The default server is: fm.grandstream.com/gs
useful for Internet Telephone Service Providers. End users should keep it blank.
keep it blank.
keep it blank.
keep it blank.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 32 OF 56
Page 33
Allow DHCP
If set to “Yes”, configuration and upgrade server’s information can be obtained using DHCP
Automatic
Choose “Yes” to enable automatic upgrade and provisioning. When set to No, GXW4248 will
Authenticate
If set to Yes, configuration file is authenticated before being accepted. This protects the
Firmware Key
For firmware encryption. It should be 32-digit in Hexadecimal Representation. End user should
Web/T el net Access
Web Port
By default, HTTP uses port 80. This field is for customizable web port.
Disable Telnet
If set to Yes, telnet access will be disabled. Default is No.
User Password
Set new password for web GUI access as User. This field is case sensitive with a maximum
Admin Password
Set new password for web GUI access as Admin. This field is case sensitive with a maximum
TR-069
ACS URL
URL of the TR-069 Auto Configuration Servers (e.g., http://acs.my comp any.com, or IP address).
ACS Username
User specify the ACS Username
ACS Password
User specify the ACS password
Periodic Inform
Default is No. If set to YES, device will send inform packets to the ACS
Periodic Inform
Frequency that the inform packets will be sent out to the ACS
Connection
The user name for the TR-069 Auto Configuration Server to connect to the phone.
Option 43 and
Option 66 to
Override Server
Upgrade
Conf File
option 66 from DHCP server. This option specifies the URL of the tftp server.
Note: If DHCP Option 66 is enabled, the gateway will attempt downloading a configuration file
from the server URL provided by DHCP, even though Config Server Path is left blank.
only do upgrade once at boot up.
When “Check every day” or “Check every week” is checked, user can specify “Hour of the day (0-
23)” or “Day of the week (0-6)”. Default time is Monday 1AM.
configuration from unauthorized modifications.
keep it blank.
Enable
Interval
Request
Username
length of 30 characters.
length of 30 characters.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 33 OF 56
Page 34
Connection
Request
The password for the TR-069 Auto Configuration Server to connect to the phone.
Security Settings
SIP TLS
The GXW4248 supports SIP over TLS. It has built-in private key and SSL
SIP TLS Private
You may also customize the SIP TLS Private Key. The user specified SIP TLS private key
SIP TLS Private
SSL Private key password used for SIP Transport in TLS/TCP.
Primary RADIUS
Remote Authentication Dial In User Service (RADIUS). GXW4248 supports RADIUS for
authentication, authorization and billing purposes. Primary and secondary RADIUS server
configurations are available to provide redundancy to this feature. In case Primary Radius
able, RADIUS requests will be automatically sent to the secondary
server. When at least one RADUIS server was configured, the device will allow users to make
phone calls only after authorization from RADIUS server has been received. CDR (Call Detail
) is also sent to the RADIUS server for billing purposes. RAIDUS server can send
Primary RADIUS
Default is 1812. Specifies the port to be used for the Primary RADIUS Authentication.
Primary RADIUS
Default is 1813. Specifies the port to be used for the Primary RADIUS Account.
Primary RADIUS
Specifies the secret string to be used to authenticate the RADIUS connection to the Primary
Secondary
Set the IP or FQDN of the Secondary RADIUS Server. In case Primary Radius server
becomes unusable, secondary will take role of primary and will manage credit recourses in the
Secondary
Default is 1812. Specifies the port to be used for the Secondary RADIUS Authentication.
Password
Certificate
Key
Key Password
Server
Authentication
Port
certificate. The user specified SSL certificate used for SIP over TLS is in X.509 format.
used for SIP over TLS is in X.509 format.
server becomes unus
Record
requests to terminate calls when run out of pre-paid credit.
Account Port
Server Secret
RADIUS Server
RADIUS
Authentication
Port
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 34 OF 56
Server . It should match RADIUS configuration.
network
Page 35
Secondary
RADIUS Account
Default is 1813. Specifies the port to be used for the Secondary RADIUS Account.
Secondary
Specifies the secret string to be used to authenticate the RADIUS connection to the
RADIUS Timeout
Default is 2
RADIUS Retry
Default is 3
Download Device
Allows user to download and save a text file containing all the P values of each setting as
configured at that point on the unit. (Note: For Security Reasons, all Passwords won’t be
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
NTP Update
Defines the update interval( in minutes ) to obtain the date and time from the server.
Time Zone
Configures the date/time used on the phone according to the specified time zone.
Self-Defined Time
This parameter allows the users to define their own time zone. For syntax and examples,
Syslog
Syslog Server
The IP address or URL of System log server. The server collects system log information from
Port
RADIUS Sever
Secret
Configuration
Interval
Secondary Server. It should match RADIUS configuration.
Downloaded)
http://www.ntp.org
Zone
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 35 OF 56
please refer to user manual.
the device.
Page 36
Syslog Level
Select the GXW4248 to report the log level. Default is NONE. The level is one of DEBUG,
INFO, WARNING or ERROR . Sy slog mes sag es are sent ba s ed on the following events:
The Syslog uses USER facility. In addition to standard Syslog payload, it contains the
: May 19 02:40:38 192.168.1.14 GS_LOG: [00:0b:82:00:a1:be][000] Ethernet link is
Print SIP in
Enable o r disable printing of full SIP messages in Syslog.
Ring Tones
System Ring
Configuration option for all FXS ports ring cadence for all incoming calls.
1. product model/version on boot up (INFO level)
2. NAT related info (INFO level)
3. sent or received SIP message (DEBU G level)
4. SIP message summary (INFO level)
5. inbound and outbound calls (INFO level)
6. registration status change (I NFO level)
7. negotiated codec (INFO level)
8. Ethernet link up (INFO level)
9. SLIC chip exception (WARNING and ERROR levels)
10. memory exception (ERROR level)
following components:
GS_LOG: [device MAC address][error code] error message
Example
up
Syslog
Cadence
(Syntax: c=on1/off1-on2/off2-on3/off3; [...]) Default is set to c=2000/4000; (US standards)
TABLE 9: ADVANCED SETTINGS
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 36 OF 56
Page 37
Call Progress
Tones
Using these settings, user can configure tone frequencies according to user preference. By
default, the tones are set to North American frequencies. Frequencies should be configured
with known values to avoid uncomfortable high pitch sounds. ONis the period of ringing (ON
ce. In order to set a continuous ring, OFF should be
FXO Failover
Failover to FXO
Enable or disable the FailoverFXO Gateway.
FXO Gateway IP
IP Address or URI of the FXO gateway.
System Features
Disable Direct IP
Disables the Direct IP Call function. Default is “No”. If set to “Yes” direct IP-to-IP calling will
Disable SIP
Disables challenging SIP NOTIFY reboot and resync messages.
Disable Voice
Disables the voice prompt configuration. Default is “No”. If set to “Yes” accessing integrated
IVR Language
Choose English, Chinese, or Spanish.
General Settings
Profile Active
When set to Yes, the SIP Profile is activated.
SIP Server
SIP Server’s IP address or Domain name provided by VoIP service provider.
Gateway
time in ms) whi le OF F is th e per iod o f sil en
zero. Otherwise it will ring ON ms and a pause of OFF ms and then repeat the pattern.
• “Dial tone”
• “Ringback tone”
• “Busy tone”
• “Reorder tone”
• “Confirmation tone”
• “Call-Waiting tone”
Please refer the document below to determine your local call progress tones:
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 37 OF 56
Page 38
Failover SIP
Failover SIP Server’s IP address or Domain name provided by VoIP Service provider. This
Prefer Primary SIP
Default is No. If set to yes it will register to Primary Server if registration with Failover server
Outbound Proxy
IP address or Domain name of Outbound Proxy, or Media Gateway, or Session Border
for firewall or NAT penetration in different network environments.
ONLY outbound proxy can correct the
Network Settings
DNS Mode
Primary IP
Configures the primary IP address where the phone sends DNS query to when "Use
Backup IP 1
Configures the backup IP 1 address where the phone sends DNS query to when "Use
Backup IP 2
Configures the backup IP 2 address where the phone sends DNS query to when "Use
NAT Traversal
This parameter defines whether the GXW4248 NAT traversal mechanism is activated or not. If
performs according to the STUN client specification. Under this mode, the embedded STUN
the detect ed NAT is a Full
will use its mapped public IP
will
periodically (every 20 seconds) send a blank UDP packet (with no payload data) to the SIP
Use NAT IP
The NAT IP address used in SIP/SDP messages. It should ONLY be used if required by your
Server
Server
server will be used if the Primary SIP server becomes unavailable.
expires
Controller. Used by GXW4248
If symmetric NAT is detected, STUN will not work and
problem.
One from the 3 modes available for “DNS Mode” configuration:
-A Record (for resolving IP Address of target according to domain name)
-SRV (DNS SRV resource records indicates how to find services for various protocols)
-NAPTR/SRV (Naming Authority Pointer according to RFC 2915)
-Use Configured IP (If selected, please fill in Primary IP, Backup IP 1 and Backup IP 2.)
One mode can be chosen for the client to look up server.
The default value is “A Record”
Configured IP" is selected for DNS mode.
Configured IP" is selected for DNS mode.
Configured IP" is selected for DNS mode.
activated (by choosing “Yes”) and a STUN server is also specified, then the GXW4248
client will detect if and what type of firewall/NAT is being used. If
Cone, Restricted Cone, or a Port-Restricted Cone, the GXW4248
address and port in all of its SIP and SDP messages.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 38 OF 56
If the NAT Traversal field is set to “Yes” with no specified STUN server, the GXW4248
server to keep the “hole” on the NAT open.
ITSP.
Page 39
Proxy-Require
A SIP Extension to notify the SIP server that the phone is behind a NAT/Firewall.
SIP Settings - Basic Settings
SIP transport
User can select UDP or TCP or TLS. Please make sure you’re SIP Server or network
SIP Registration
This parameter controls whether the GXW4248 needs to send REGISTER messages to the
Unregister on
Reboot
Default is No. If set to “Yes”, the SIP user’s registration information is cleared on reboot.
Outgoing Calls
Default is No. If set to “Yes,” user can place outgoing calls even when not registered (if
Any port, member of a Hunting Group that is not registered with a SIP account, will be able to
. Port 1 is registered
with a SIP account. Ports 3 and 5 are not registered. Ports 3 and 5 will be able to place
is
Register
Allows the user to specify the time frequency (in minutes) for the GXW4248 to refresh its
registration with the specified registrar. The default interval is 60 minutes (or 1 hour). The
SIP Registration
Allows the user to specify the time frequency (in seconds) for the GXW4248 to re-register after
seconds
Reregister Before
Determines how many seconds before the previous registration expires that the port should
Local SIP Port
Defines the local SIP port the GXW4248 will listen and transmit. The default value for Profile 1
Use Random SIP
Default is No. If set to Yes, the device will pick randomly-generated SIP ports. This is usually
SIP T1 Timeout
T1 is an estimate of the round-trip time between the client and server transactions.
SIP T2 Timeout
Maximum retransmission interval for non-INVITE requests and INVITE responses.
environment supports SIP over the selected trans port method. Default is UDP.
proxy server. The default setting is “Yes”.
Without
Registration
Expiration
Failure Retry Wait
Time
Expiration
allowed by Internet Telephone Service Provider) but is unable to receive incoming calls.
place outbound calls using the SIP credentials of the primary Hunting Group port.
For example: Port 1, 3 and 5 are members of the same Hunting Group
outbound calls using the SIP account of port 1, even if Outgoing Call without Registration
set to No
maximum interval is 65535 minutes (about 45 days).
registration failure. The default interval is 20 seconds. The maximum interval is 3600
(1 hour).
reregister.
is 5060 and 6060 for Profile 2.
Port
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 39 OF 56
necessary when multiple GXW4248/HT50X are behind the same NAT.
If the network latency is high, select larger value for more rel iabl e usage.
Page 40
Remove OBP from
Route Header
Default is No. If set to Yes, the Outbound Proxy will be removed from the route header.
Support SIP
Default is Yes. If set to Yes, the contact header in REGISTER request will contain SIP Instance
Refer-To Use
Default is No. If set to YES,then for Attended Transfer, the “Refer-To” header uses the
SUBSCRIBE for
Default is No. When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be sent
Enable 100rel
Enables the use of PRACK (Provisional Acknowledgment) method.
TEL URI
request to indicate the E.164 number. If server supports TEL URI format, then this option needs
The minimum session expiration (in seconds). The default value is 90 seconds.
Caller Request
If selecting “Yes” the phone will use session timer when it makes outbound calls if remote party
Callee Request
If selecting “Yes” the phone will use session timer when it receives inbound calls with session
Force Timer
If selecting “Yes” the phone will use session timer even if the remote party does not support this
feature. Selecting “No” will allow the phone to enable session timer only when the remote party
for Caller Request Timer, Callee Request Timer, and
Instance ID
Target Contact
MWI
Expiration
ID as defined in IETF SIP Outbound draft.
transferred target’s Contact header information.
periodically.
The default setting is “Disabled”. If the phone has an assigned PSTN
Number, this field should be set to “User=Phone” then a
“User=Phone” parameter will be attached to the “From header” in the SIP
to be selected.
sessions to be periodically “refreshed” via a SIP request (UPDATE, or re-INVITE. When
session interval expires, if there is no refresh via a UPDATE or resession will be terminated.
Session Expiration is the time (in seconds) at which the
successful session refresh transaction occurs beforehand. The default value is 180 seconds.
Timer
Timer
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 40 OF 56
supports session timer.
timer request.
support this feature.
To turn off Session Timer, select “No”
Force Timer.
Page 41
UAC Specify
As a Caller, select UAC to use the phone as the refresher, or UAS to use the Callee or proxy
UAS Specify
As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to use the phone
Force INVITE
Session Timer can be refreshed using INVITE method or UPDATE method. Select “Yes ” to use
SIP Settings - Security Settings
Validate Incoming
Defines whether the incoming messages will be validated.
If set to "Yes", SIP User ID will be checked in the Request URI of the incoming INVITE. If it
Accept Incoming
If set to "Yes", SIP User ID will be checked in the Request URI of the incoming INVITE. If it
Authenticate
If set to "Yes", the phone will challenge the incoming INVITE for authentication with SIP 401
Fax Settings
Fax Mode
T.38 (Auto Detect) FoIP by default, or Pass-Through (must use codec PCMU/PCMA)
Fax Tone
Default is Callee. This decides whether Caller or Callee sends out the re-INVITE for T.38 or
Send Re-INVITE
Default is No, If set to “Yes”, device will send an INVITE with audio vocoders upon completition
Send Re-INVITE
If set to “Yes”, device will send an Re-INVITE after Fax tone is detected, disabling will only work
Enable Silence
For fax machines that do not send a Disconnect when fax is done. This option
Enables/Disables the detection of silence in order to know the fax has finished. The silence
Audio Settings
Refresher
Refresher
Messages
Check SIP User ID
for Incoming
INVITE
SIP from Proxy
Only
server as the refresher.
as the refresher.
INVITE method to refresh the session timer.
doesn't match the phone's SIP User ID, the call will be re jected. Direc t IP calling will als o be
disabled.
doesn't match the phone's SIP User ID, the call will b e rejected. Dire ct IP calling will a lso be
disabled.
Incoming INVITE
Detection Mode
After Fax
Completion
After Fax Tone
Detection for Fax
Disconnect
Unauthorized response.
Fax Pass Through.
of Fax to continue session in audio only.
under Broadsoft feature.
period is non-configurable and fixed to 7 seconds.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 41 OF 56
Page 42
Preferred DTMF
The GXW4248 supports up to 3 different DTMF methods including in-audio, via RTP
Disable DTMF
Default is No. If set to yes, use above DTMF order without negotiation
DTMF Payload
Sets the payload type for DTMF using RFC2833.
Preferred Vocoder
The GXW4248 supports up to 5 different Vocoder types including G.711 A-/U-law, G.726
. The user can configure
Vocoders in a preference list that will be included with the same preference order in SDP
“Choice 1”. The
Voice Frames per
Number of the frame size when it transmits. Default is 2, from 1 -4 for G711/G726/G729
G723 Rate
Defines the encoding rate for G.723 vocoder. By default, 6.3kbps rate is chosen.
G726-32 Packing
Choose the packing mode for G726-32
iLBC Frame Size
Sets the iLBC frame size in 20ms or 30ms
iLBC Payload type
Default value is 97. Defines payload type for iLBC. The valid range is between 96 and 127.
AAL2-G726-16
Default value is 100. Range is from 96 to 127.
AAL2-G726-24
Default value is 99. Range is from 96 to 127.
AAL2-G726-32
Default value is 104. Range is from 96 to 127.
AAL2-G726-40
Default value is 103. Range is from 96 to 127.
Use First
Default is No. If set to “Yes”, device will include only the first match vocoder in its 200OK
method (in listed
order)
Negotiation
Type
TX
(RFC2833) and via Sip Info. The user can configure DTMF method in a priority list.
(Supports bit rates 16, 24, 32 and 40), G.723.1, G.729A/B, iLBC
message. The first Vocoder is entered by choosing the appropriate option in
last Vocoder is entered by choosing the appropriate option in “Choic e 8”.
Mode
Payload type
Payload type
Payload type
Payload type
Matching Vocoder
in 200OK SDP
response, otherwise it will include all match vocoders in same order received in INVITE.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 42 OF 56
Page 43
SRTP Mode
Default is Disabled. Other options are Enabled but not forc ed, and Enabled and forced.
Silence
Default is No. VAD allows detecting the absence of audio and conserve bandwidth by
Jitter Buffer Type
Select either Fixed or Adaptive based on network conditions.
Jitter Buffer
Select Low, Medium or High based on network conditions.
High (initial 200ms, min 40ms, max 600ms) Note: not all vocoders can meet the high
SLIC Setting
Depends on standard phone type (and location)
Caller ID Scheme
Polarity Reversal
Default is No. If set to “Yes”, polarity will be reversed upon call establishment and termination.
Loop Current
Set to Yes if the traditional PBX you are using with GXW4248 uses this method for signaling
Loop Current
Default is 200. In 100 - 1 0000 milliseconds range.
Enable Hook
If no, flash will be treated as an on hook event.
Hook Flash timing
Sets the minimum/maximum time the phone is on hook before being detected as a hook flash.
On Hook Timing
Sets the time required to detect that the phone is on hook. The range is 40 to 2000
It uses SDP Security Description to exchange key.Please refer
SDES: http://www.apps.ietf.org/rfc/rfc4568.html
SRTP: http://www.apps.ietf.org/rfc/rfc3711.html
Suppression
(VAD)
Length
Disconnect
preventing the transmission of "silent packets" over the network.
•
requirement
• Medium (initial 100ms, min 20ms, max 200ms)
• Low (initial 50ms, min 10ms, max 100ms)
Select the value according to the local Telco standard where the GXW4248 is installed.
Please refer to the pull down list to select.
call termination. Default is No.
Disconnect
duration
Flash
(Minimum)/
(Maximum)
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 43 OF 56
The range is 40 to 2000 milliseconds
milliseconds. Default is 400 millisec ond s.
Page 44
Gain
Handset volume adjustment. RX is for receiving volume (direction FXSto analog phone), TX
is for transmission volume (Analog phone to FXS). Default values are 0dB
for both
Disable Line Echo
Default is No. If set to “Yes”, device will not use LEC to remove echo from a voice
SLIC Setting
Depends on standard phone type (and location)
Caller ID Scheme
Call Settings
Early Dial
Default is No. Use only if proxy supports 484 response. This parameter controls whether the
phone will send an early INVITE each time a key is pressed when a user dials a number. If set
thus far; Otherwise, no INVITE is
)Dial” button is pressed or after about 5 seconds have elapsed if the user
Dial” button. The “Yes” option should be used ONLY if there is a SIP
server supports 484 Incomplete Address response. Otherwise,
Select the value according to the local Telco standard where the GXW4248 is installed.
Please refer to the pull down list to select.
to “Yes”, an INVITE is sent using the dial-number coll ected
sent until the “(Reforgets to press the “Reproxy configured and the proxy
the call will likely be rejected by the proxy (with a 404 Not Found error).
This feature is NOT designed to work with and should NOT be enabled for direct IP-tocalling.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 44 OF 56
add a leading 1 to all numbers dialed, vice versa will remove a 1 from
Block any number of leading digits 1900 and add prefix 1617 for any dialed 7 digit
numbers of leading digit 1
and leading exchange number between 2 and 9; If leading digit is 2, replace leading
ocal area code (617) numbers by dialing 7
dial strings such as *123 to activate voice mail or other
application provided by service provider. In this case * should be predefined inside dial plan
2. Grammar: x - any digit from 0-9;
a. xx+ - at least 2 digits number;
b. xx. – at least 2 digits number;
c. ^ - exclude;
d. [3-5] - any digit of 3, 4, or 5;
e. [147] - any digit 1, 4, or 7;
f. <2=011> - replace digit 2 with 011 when dialing
g. < =1> -
the number dialed
h. | - or
•Example 1: {[369]11 | 1617xxxxxxx} –
Allow 311, 611, 911, and any 10 digit numbers of leading digits 1617
•Example 2: {^1900x+ | <=1617>xxxxxxx} –
numbers
•Example 3: {1xxx[2-9]xxxxxx | <2=011>x+} –
Allow any length of number with leading digit 2 and 10 digit-
digit 2 with 011 before dialing.
3. Default: Outgoing - {x+}
Example of a simple dial plan used in a Home/Office in the US:
Explanation of example rule (reading from left to right):
• ^1900x. - prevents dialing any number started with 1900
• <=1617>[2-9]xxxxxx - allows dialing to l
numbers and 1617 area code will be added automatically
• 1[2-9]xx[2-9]xxxxxx |- allows dialing to any US/Canada Number with 11 digits length
• 011[2-9]x. - allows international calls starting with 011
[3469]11 - allow dialing special and emergency numbers 311, 411, 611 and 911
Note: In some cases user wishes to
feature and the Dia l Plan will be: { [x*]+ }.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 45 OF 56
Page 46
Use # as Dial Key
Allows users to configure the “#” key as the “Send” (or “Dial”) key. If set to “Yes”, “#” will send
the number. In this case, this key is essentially equivalent to the “Dial” key. If set to “No
”, this
No Key Entry
Default is 4 seconds. Call will be completed within this time interval if no additional key entry
Off-Hook Auto-
Determines how many seconds after off-hook to wait before autodialing the extension set under
Enable Call
Default is Yes. (If Yes, call features using star codes will be supported locally)
Disable Call
Default is No. If set to YES Call Waiting indication information will not be provided to analog
Disable Call
Default is No. If set to YES Call Waiting caller ID will not be provided to analog phone
Disable Call
Default is No. This is to disable the stutter Call Waiting Tone when a Call Waiting call arrives.
Disable Receiver
Default is No. If YES, ROH tone will not be played after off hook for 60 seconds.
Disable Reminder
Default is No. This is to disable the Reminder Ring that is played when a call is waiting on hold
Disable Visual
Visual message indicator is a special on-hook caller ID type message that enables and
has this feature enabled by
may mistakenly treat this CID
Visual MWI Type
This is the type of signal sent to the analog phone to make it turn the lamp ON upon receiving a
Voice mail. Check the phone’s manual to find out what signal is supported, FSK (default) or
Transfer on
Defines whether the call is transferred to the other party if the conference initiator hangs up.
Disable Bellcore-
Disable Bellcore-style 3-Way C onferen ce
“#” key can be included as part of number.
Timeout
Dial Delay
Features
Waiting
Waiting Caller ID
Waiting Tone
Offhook Tone
Ring for On-Hold
Call
occurs.
Advanced Port Settings. The range is 0 to 60 second s.
phone connected to this FXS port.
connected to this FXS port.
The CWCID will still be displayed.
and the analog phone goes on-hook.
MWI
Conference
Hangup
style 3-Way
Conference
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 46 OF 56
disables the message waiting light on certain phones. GXW4248
default. However, certain phones (rare) that do not support it
signal as an incoming call. A configuration option is needed to turn on MWI in this case.
Neon.
Page 47
Send Hook Flash
Event
Default is No. If set to yes, flash will be sent as a DTMF event.
Ring Timeout
Incoming call will stop ringing when not picked up given a specific period of time.
Delayed Call
Default value is 20 seconds. In case this feature activated using * codes (*92 code), the call
Send Anonymous
If this parameter is set to “Yes”, the “From” header along with Privacy and
cking
Anonymous Call
Default is No. If set to Yes, incoming calls with anonymous Caller ID will be rejected with 486
Hunting Group
Linear and Circular. Linear style will sort the call to the lowest-numbered available line, this is
robin". If a call is
assigned to line 1, the next call goes to 2 and the next to 3. The succession throughout each of
ious lines becomes available. When the end of the
hunt group is reached, the hunting starts over at the first line. Lines are skipped if they are still
Hunting Group
Default is 20 seconds. If call is not answered within this designated time period, the call will be
Special Feature
Default is Standard. Choose the selection to meet some special requirements from Softswitch
Ring Tones
Distinctive
Custom Ring Tone 1 to 3 with associate Caller ID: when selected, if Caller ID is configured,
is from the Caller ID.
System Ring Tone is used for all other calls. When selected but no Caller ID is configured, the
Distinctive ring tones can be configured
t also for matching prefixes. In this case symbol * (star)
or distinctive ring tone
f configured as *617, Ring Tone 1 will be used in case of call arrived from Massachusetts. Any
other incoming call will ring using cadence defined in parameter System Ring Cadence located
Forward Wait
Timeout
Rejection
Type
Ring Timeout
will be forwarded after this preconfigured amount of time.
P_Asserted_Identity headers in outgoing INVITE message will be set to anonymous, blo
Caller ID.
Busy message.
also called “serial hunting”. Circular style will distribute the calls "round-
the lines continues even if one of the prev
busy on a previous call. These two hunting styles can be configured from the Profile_x page.
forwarded to the next member of a Hunt Group.
vendors. Example of vendors - CBCOM, RNK.
Ringtone
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 47 OF 56
then the device will ONLY uses this ring tone when the incoming call
selected ring tone will be used for all incoming calls.
not only for matching whole number, bu
will be used.
If server supports Alert-Info header and standard ring tone set (Bellcore)
1-10 is specified, then the ring tone in the Alert-Info header from server will be used.
For example:
I
under Advanced Settings Configuration page.
Page 48
Ring Tones
Configure ring cadences according to preference.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 48 OF 56
Page 49
Port Settings
SIP User ID
User account information, provided by VoIP service provider (ITSP).
Usually in the form of digit similar to phone number or actually a
Authenticate ID
SIP service subscriber’s Authenticate ID used for authentication.
Password
SIP service subscriber’s account password for GXW4248 to register
Name
Any name to identify this specific user.
Profile
Select the corresponding Profile ID (1/2/3/4)
Enable FXS (TR-069)
Enable or disable the FXS port.
Advanced Port
Settings
Configure an auto dial number when offhook.
Hunting Group
Assign this port to a certain hunting group
FXO Mapping
Map to FXO Port #
This is used only when peering with a Grandstream GXW410x.
8, meaning line 1 to 8 of the
Map to FXO Gateway
This is used when peering with an FXO gateway of any brand. You
have to specifically mention the IP and sip port where call will be sent
And Port
Sip port that will be annexed to the IP address above.
Offhook Auto-dial
TABLE 11: FXS PORTS
phone number.
Can be
identical to or different from SIP User ID.
to (SIP) servers of ITSP.
Default 1, Supported values are 1GXW410x device where the port will be mapped to.
IP
to.
SAVING THE CONFIGURATION CHANGES
After user makes a c hange to the configuration, press t he “ Upd ate” b utto n i n th e C onf igur at io n Me nu. T he
web browser will then display a message window to confirm saved changes.
Grandstream recommends reboot or power cycle the gateway after saving changes.
REBOOTING FROM REMOTE
Press the “Reboot ” b utto n at the bottom of the c o nf igu ration menu to reboot the p hone r emotely. The web
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 49 OF 56
Page 50
browser will then dis pl a y a message window to confirm that reboot is underwa y. Wait 30 seconds to log in
again.
CONFIGURATION THROUGH A CENTRAL SERVER
Grandstream GXW4248 can be automatically configured from a central provisioning system.
When GXW4248 boots up, it wi ll send TFTP or HTTP/HTTPS requests t o download configuration f iles,
“cfg000b82xxxxxx” and “cfg00082xxxxxx.xml”, where “000b82xxxxxx” is the LAN MAC address of the
GXW4248. If the downloa d of “cfgxxxxxxxxxxxx.xml” is not suc cessful, the provision program will issue
request a generic configuration file “cfg.xml”. Configuration file name should be in lower case letters.
The configuration d ata can be downloa ded via TFTP or HTTP/HTTPS from the central serve r. A service
provider or an enterpr ise with large deployment of GXW4248 can easil y manage the configuration and
service provisioning of individual devices remotely from a central server.
Grandstream provides a central provisioning system GAPS (Grandstream Automated Provisioning
System) to support automated configuration of Grandstream devices. GAPS uses enhanced (NAT
friendly) TFTP or HTT P (thus no NAT issues) and other communicat ion protocols to communicate with
each individual Grandstream device for firmware upgrade, remote reboot, etc.
Grandstream provides G APS service to VoIP service providers. Use GAPS for either simple r edirection
or with certain special provisioning settings. At boot-up, Grandstream devices by default point to
Grandstream provisioning server GAPS, based on the unique MAC address of each device, GAPS
provision the devices with redirection settings so that they will be redirected to customer’s TFTP or
HTTP/HTTPS server for further provisioning.
Grandstream also pro vides configuration tools (W indows and Linux/Un ix version) to facilitate the task of
generating device configuration files. The Grandstream configuration tools are free to end users. The
configuration tools and configuration templates are available for download from
http://www.grandstream.com/support/tools .
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 50 OF 56
Page 51
SOFTWARE UPGRADE
Software upgrade can be done via either TFTP or HTTP/HTTPS. The corresponding configuration
settings are in the ADVANCED SETTINGS configuration page.
FIRMWARE UPGRADE THROUGH TFTP/HTTP/HTTPS
To upgrade via TFTP or HTTP/HTTPS, the “Firm ware Upgrade and Provisio ning upgrade v ia” field needs
to be set to TFTP HTTP or HTTPS, respectively. “Firmware Server Pat h” needs to be set to a va lid URL
of a TFTP or HTTP server, server name can be in either FQ DN or IP address form at. Here are ex amples
of some valid URL.
e.g. firmware.mycompany.com:6688/Grandstream/1.0.7.6
e.g. firmware.grandstream.com
NOTES:
Firmware upgrade server in I P address format c an be configured via IVR. Please refer to the
CONFIGURATION GUIDE section for instructions. If the server is in F QDN f ormat, it m ust be s et
via the web configuration interface.
Grandstream recommends end-user use the Grandstream HTTP server. Its address can be found
http://www.grandstream.com/support/firmware . Currently the HTTP firmware server URL is
at
firmware.grandstream.com. For large com panies, we recommend to maintain their own T FTP/
HTTP/HTTPS server for upgrade and provisioning procedures.
Once a “Firmware Server Path” is set, user needs to updat e the sett ings and r ebo ot the dev ice. If
the configured firmware server is foun d and a ne w cod e im age is avai lable, the GXW will attempt
to retrieve the new image files by downloading them into the GXW420x ’s SRAM. During this
stage, the GXW’s LEDs will blink until the checking/downloading process is completed. Upon
verification of checksum, the new code image will then be saved into the Flash. If
TFTP/HTTP/HTTPS fails for an y reason ( e.g. TFTP/HTTP/HTTPS server is not respond ing, th ere
are no code image files avail able for upgrad e, or checks um test fails, etc), the GXW will stop the
TFTP/HTTP/HTTPS process and simply boot using the existing code image in the flash.
Firmware upgrade may take as long as 15 to 30 minutes over Int ernet, or just 5 m inutes if it is
performed on a LAN. It is recommended to conduct firmware upgrade in a controlled LAN
environment if possible. For users who do not have a local firmware upgrade server,
Grandstream provides a NAT-friendly TFTP server on the public Internet for firmware upgrade.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 51 OF 56
Page 52
Grandstream’s latest firmware is available http://www.grandstream.com/support/firmware .
Oversea users are strongly recommended to download the binary files and upgrade firmware
locally in a controlled LAN environment.
Alternatively, user can download a free TFTP or HTTP server and conduct local firmware upgrade.
A free windows version TFTP server is available for download from
http://support.solarwinds.net/updates/New-customerFree.cfm. Our latest official release can be
downloaded from http://www.grandstream.com/y-firmware.htm.
INSTRUCTIONS FOR LOCAL FIRMWARE UPGRADE:
1. Unzip the file and put all of them under the root directory of the TFTP server.
2. Put the PC running the TFTP server and the GXW4248 device in the same LAN segment.
3. TFTP server's securit y sett ings s hou ld be c h ang ed f rom "Receive Only" to "Transmit Only" for the
firmware upgrade.
4. Configure the Firmware Server Path with the IP address of the PC
5. Update the change and reboot the unit.
CONFIGURATION FILE DOWNLOAD
Grandstream SIP Device can be configured via Web Interface as well as via Configuration File through
TFTP or HTTP/HTTPS. “Config Server Path” is the TFTP or HTTP/HTTPS server path for configuration
file. It needs to be set to a valid URL, either in FQDN or IP address format. The “Config Server Path” can
be same or different from the “Firmware Server Path”.
A configuration parameter is associated with each particular field in the web configuration page. A
parameter consists of a Capital letter P and 1 to 3 (Could be extended to 4 in the future) digit numeric
numbers. i.e., P2 is associated with “Admin Password” in the ADVANCED SETTINGS page. For a
detailed parameter list, please refer to the corresponding firmware release configuration template.
When a Grandstream device boots up or reboots, it will issue a request for a configuration file
“cfgxxxxxxxxxxx x”, where “xxx xxxxxxxxx” is the MAC address of t he device, i.e., “cfg000b820 102ab”. In
addition, device will also requests a XML configuration file “cfgxxxxxxxxxxxx.xml”. If the download of
“cfgxxxxxxxxxxxx.xml” is not successful, the provision program will issue a request for a generic
configuration file “cfg.xml”. Configuration file name should be in lower case letters.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 52 OF 56
Page 53
FIRMWARE AND CONFIGURATION FILE PREFIX AND POSTFIX
10080
1
1
Firmware Prefix and Postfix allows device to d ownload the firm ware name with the matching Prefix and
Postfix. This mak es it poss ible t o stor e ALL of the f irmwar es with different version in on e singl e dir ector y.
Similarly, Config File Prefix and Postfix allows d evice t o download the conf iguration f ile with th e matching
Prefix and Postfix. Thus multiple configuration files for the same device can be stored in one directory.
In addition, when the field “Check New Firmware only when F/W pre/suffix changes” is selected, the
device will only issue firmware upgrade request if there are changes in the firmware Prefix or Postfix.
MANAGING FIRMWARE AND CONFIGURATION FILE DOWNLOAD
When “Automatic Upgrade” is set to “Yes”, Service Provider can use P193 to have the devices
periodically check with either Firmware Ser ver or Con fig Server, whenever the y are defined . This allo ws
the device periodica lly ch eck whether there is any ne w changes need to b e taken, sim ilar to the An tiVirus
Software to upgrade the Virus Definition files. Screenshot is below:
Automatic Upgrade:
No Yes, every
Yes, daily at hour
minutes(60-5256000).
(0-23). Yes, weekly on day
(0-6).
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 53 OF 56
Page 54
RE STOR E FACTORY D EFAULT SETTING
FACTORY RESET
WARNING! Restoring the Factory Default Sett ing will DEL ETE all configuration in f orm ation of the phone.
Please BACKUP or PRIN T out all the settings before you approac h to following steps. Grandstream will
not take any responsibility if you lose all the parameters of setting and cannot connect to your VoIP
service provider.
There are two (2) methods for resetting your unit:
RESET BUTTON
Reset default factory settings following these four (4) 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. Insert a pin in this hole, and press for more than 4 seconds.
4. Take out the pin. All unit settings are restored to factory settings.
IVR COMMAND
Reset default factory settings using the IVR Prompt (Table 5):
1. Dial “***” for voice prompt.
2. Enter “099” and wait for “reset” voice prompt.
3. Enter the encoded MAC address (Look below on how to encode MAC address).
4. Wait 15 seconds and device will automatically reboot and restore factory settings.
Encode the MAC Address
1. Locate the MAC address of the device. It is the 12 digit HEX number on the bott om of the
unit.
2. Key in the MAC address. Use the following mapping:
0-9: 0-9
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 54 OF 56
Page 55
A: 22 (press the “2” key twice, “A” will show on the LCD)
B: 222
C: 2222
D: 33 (press the “3” key twice, “D” will show on the LCD)
E: 333
F: 3333
For example: if the MAC address is 000b8200e395, it should be keyed in as “0002228200333395”.
NOTE:
1. Factory Reset will be disabled if the “Lock keypad update” is set to “Yes”.
2. If still have difficulties to get access to the device, pushing the reset button during booting up will
trigger the RECOVERY MODE, and device will use static IP 192.168.1.234/24. You may need a direct
connection to access the configuration page.
FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 55 OF 56
Page 56
FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could
void the user's authority to operate the equipment.
FCC 15.105 Class B
(b) For a Class B digital device or peripheral, the instructions furnished the user shall include the
following or similar statement, placed in a prominent location in the text of the manual:
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
—Consult the dealer or an experienced radio/TV technician for help.
FIRMWARE 1.0.3.4
GXW42XX USER MANUAL
PAGE 56 OF 56
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