Grandstream Networks GXW4216 User manual

GXW42XX User Manual www.grandstream.com
Firmware Version 1.0.5.8 [email protected]
Grandstream Networks, Inc.
Analog IP Gateway GXW42XX series
16, 24, 32 or 48 FXS Ports

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FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 1 OF 61
GXW42XX USER MANUAL
INDEX
GNU GPL INFORMATION..........................................................................4
CHANGE LOG ...........................................................................................5
CHANGES FROM 1.0.5.8 USER MANUAL ..........................................................................................5
CHANGES FROM 1.0.5.5 USER MANUAL ..........................................................................................5
CHANGES FROM 1.0.4.24 USER MANUAL ........................................................................................5
CHANGES FROM 1.0.4.17 USER MANUAL ........................................................................................6
CHANGES FROM 1.0.4.9 USER MANUAL ..........................................................................................6
CHANGES FROM 1.0.4.4 USER MANUAL ..........................................................................................6
CHANGES FROM 1.0.3.9 USER MANUAL ..........................................................................................6
WELCOME.................................................................................................7
GATEWAY GXW42XX OVERVIEW.......................................................................................................7
SAFETY COMPLIANCE........................................................................................................................7
WARRANTY...........................................................................................................................................8
CONNECT YOUR GXW42XX GATEWAY ..................................................9
EQUIPMENT PACKAGING ...................................................................................................................9
CONNECT THE GXW42XX...................................................................................................................9
GXW42XX FEATURES ............................................................................15
SOFTWARE FEATURES OVERVIEW ................................................................................................15
HARDWARE SPECIFICATION............................................................................................................18
GXW42XX LCD MENU........................................................................................................................19
BASIC OPERATIONS ..............................................................................21
UNDERSTANDING GXW VOICE PROMPTS.....................................................................................21
PLACING A PHONE CALL ..................................................................................................................22
PHONE OR EXTENSION NUMBERS..........................................................................................22
DIRECT IP CALLS........................................................................................................................23
CALL HOLD.........................................................................................................................................24
CALL WAITING....................................................................................................................................24
CALL TRANSFER................................................................................................................................24
BLIND TRANSFER.......................................................................................................................24
ATTENDED TRANSFER ..............................................................................................................24
3-WAY CONFERENCING....................................................................................................................25
HUNTING GROUP ..............................................................................................................................25
INTER-PORT CALLING.......................................................................................................................27

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 2 OF 61
SENDING AND RECEIVING FAX .......................................................................................................27
SUPPORT RADIUS PROTOCOL........................................................................................................28
CALL FEATURES ....................................................................................29
CONFIGURATION GUIDE........................................................................31
CONFIGURING GXW42XX VIA VOICE PROMPT .............................................................................31
CONFIGURING GXW42XX WITH WEB BROWSER..........................................................................31
ACCESS THE WEB CONFIGURATION MENU...........................................................................32
IMPORTANT SETTINGS.....................................................................................................................32
NAT SETTINGS............................................................................................................................32
DTMF METHODS.........................................................................................................................33
PREFERRED VOCODER (CODEC)............................................................................................33
SAVING THE CONFIGURATION CHANGES......................................................................................55
REBOOTING FROM REMOTE...........................................................................................................55
CONFIGURATION THROUGH A CENTRAL SERVER.......................................................................55
SOFTWARE UPGRADE...........................................................................57
FIRMWARE UPGRADE THROUGH TFTP/HTTP/HTTPS..................................................................57
INSTRUCTIONS FOR LOCAL FIRMWARE UPGRADE:....................................................................58
CONFIGURATION FILE DOWNLOAD................................................................................................58
FIRMWAREAND CONFIGURATION FILE PREFIX AND POSTFIX ..................................................58
MANAGING FIRMWARE AND CONFIGURATION FILE DOWNLOAD..............................................59
RESTORE FACTORY DEFAULT SETTING .............................................61
FACTORY RESET...............................................................................................................................61
RESET BUTTON..........................................................................................................................61
IVR COMMAND............................................................................................................................61

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 3 OF 61
TABLE OF FIGURES
GXW42XX User Manual
Figure 1: Diagram of GXW4216/24/32/48 Panel ........................................................................................11
Figure 2: 50 Pin Telco Connector................................................................................................................12
Figure 3: LCD Menu....................................................................................................................................19
TABLE OF TABLES
GXW42XX User Manual
Table 1: Definitions of the GXW Connectors..............................................................................................11
Table 2: Definitions of the GXW Display Panel..........................................................................................11
Table 3: GXW42XX Software Features......................................................................................................15
Table 4: Hardware Specification of GXW42XX series gateways...............................................................18
Table 5: Definitions of the GXW Voice Prompts.........................................................................................21
Table 6: Call Features Table (Star Code)...................................................................................................29
Table 7: Status ...........................................................................................................................................34
Table 8: Maintenance.................................................................................................................................35
Table 9: Advanced settings ........................................................................................................................40
Table 10: Profiles........................................................................................................................................41
Table 11: FXS Ports ...................................................................................................................................54

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 4 OF 61
GNU GPL INFORMATION
GXW42XX 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 .

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 5 OF 61
CHANGE LOG
This section documents significant changes from previous versions of GXW42XX user manuals. Only
major new features or major document updates are listed here. Minor updates for corrections or editing
are not documented here.
CHANGES FROM 1.0.5.8 USER MANUAL
Added option [DTMF-RELAY Tag Respect SIP INFOUse Request Routing ID in SIP Headers] for Profile 1-
4 audio settings.
Added the option of [Crypto Life Time] to support RTP settings.
Added option [Play busy/reorder tone before Loop Current Disconnect] for Profile 1-4 audio settings.
Added the option of [Disable Connected Line ID]to support not display the connected line ID.
Added the option of [Flash Digit ControlCrypto Life Time] to overrides the default settings for call
control.
Added option to configure [Local RTP port].
Added the option to configure [SIP Registration Failure Retry Wait Time upon 403 Forbidden].
Added the option to enable/disable [Hold Target Before Refer].
Added the option to enable/disable [Authenticate server certificate domain].
Added the option to enable/disable [Authenticate server certificate chain].
Added the option to configure [Trusted CA certificates].
Added the function of [Automatic Reboot].
Added the option to [Allow DHCP Option 42 to NTP Server]to support Time and Date settings.
Added the option to [Allow DHCP Option 2 to override time zone]to support Time and Date settings.
Added the option to enable/disable [3CX Auto Provision]to support multicast SUBSCRIBE for
provision.
CHANGES FROM 1.0.5.5 USER MANUAL
Added option [SIP REGISTER Contact Header UsesUse Request Routing ID in SIP Headers] for Profile 1-
4 to support NAT transfer feature.
CHANGES FROM 1.0.4.24 USER MANUAL
Added option [Enable Fast RFC2833] to set DTMF duration by RFC2833.
Added SNMP support. Added [SNMP] section.
Added QoS settings for SIP and RTP packets. Rearranged options [Layer 2 QoS Settings], and [Layer
3 QoS Settings].

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 6 OF 61
Added star code [*98]to play registration ID
Added star code [*99]to trigger provisioning process.
Added option to download [XML]format device configuration file.
CHANGES FROM 1.0.4.17 USER MANUAL
Added support for audio codec G.722
Added option [Always send HTTP Basic Authentication Information] to enable sending HTTP
authentication without server challenge
Added the options to enable/disable [Use P-Preferred-Identity Header] and [Use Privacy Header]
Added the options to enable/disable [Do Not Escape '#' as %23 in SIP URI]
CHANGES FROM 1.0.4.9 USER MANUAL
Added option [Use Request Routing ID in SIP Headers] to enable/disable device to use configured
Request URI Routing ID for certain FXS port in its SIP message Header when a trunk SIP account is
used.
Added option [Add Auth Header on Initial REGISTER] to enable/disable including authentication header
in the initial REGISTER.
CHANGES FROM 1.0.4.4 USER MANUAL
Added option [Enable LLDP] to enable/disable LLDP.
Added field [Request URI Routing ID] to allow device to route the calls to individual fxs ports based on
the DID, when only have one sip registration.
CHANGES FROM 1.0.3.9 USER MANUAL
Added option [Display Language] to choose language for LCD display.
Added option [Prompt Dial Tone Code] to configure dial code.

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 7 OF 61
WELCOME
Thank you for purchasing the Grandstream GXW42XX Analog FXSIP Gateway. The GXW42XX offers an
easy to manage, easy to configure IP communications solution for any business with virtual and/or branch
locations. The GXW42XX 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 GXW42XX OVERVIEW
The new GXW42XX series 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 GXW42XX series features 16, 24, 32 or 48port FXS interface for analog telephones, dual
10/100/1000Mbps network ports, and RJ21analog 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 GXW42XX 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 GXW42XX package.
Use of alternative power adapter may permanently damage the unit.

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 8 OF 61
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.
If you purchased the product directly from Grandstream, contact your Grandstream Support for an RMA
(Return Materials Authorization) number. Grandstream reserves the right to change thewarranty 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.
This document contains links to HT502 GUI Interfaces. Please download these examples from
http://www.grandstream.com/products/gxw_series/GXW42XX /documents/GXW42XX _gui.zip for your
reference.
This document is subject to change without notice. The latest electronic version of this user manual is
available for download at: http://www.grandstream.com/products/gxw_series/GXW42XX
/documents/GXW42XX _usermanual_english.pdf
Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for
any purpose is not permitted without the express written permission of Grandstream Networks, Inc.

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 9 OF 61
CONNECT YOUR GXW42XX GATEWAY
Connecting the GXW42XX gateway is easy. Before you begin, please verify the contents of the
GXW42XX package.
EQUIPMENT PACKAGING
Unpack and check all accessories. Equipment includes:
one device unit
one RJ45 Ethernet cable
one 12V 5A universal power adapter (24V 6.25A for GXW4248)
mount
CONNECT THE GXW42XX
Follow these four (4) steps to connect your GXW42XX gateway to the Internet and access the unit’s
configuration pages.
1. Connect standard touch-tone analog phones to the GXW42XX’s RJ21 port with a RJ11 to R21
cable.
2. Insert anRJ45 Ethernet cable into the WAN port of GXW42XX and connect the other end to an
uplink port (a router or a modem, etc.)
3. Plug the power adapter into the GXW42XX 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.

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 10 OF 61

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 11 OF 61
FIGURE 1: DIAGRAM OF GXW4216/24/32/48 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 GXW42XX 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.

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 12 OF 61
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:
For GXW4216, only first 16 pairs are connected.
For GXW4232, first 24 pairs on 1st RJ21 connector and first 8 pairs on the 2nd RJ21 connector are
connected.
For GXW4224 and GXW4248, the last pair of pin 25 and 50 on each RJ21 is not connected.

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 13 OF 61
All LED lights display green when ON.
LINK LED and ACT LED blinking in following status indicate different network speed.
10M: LINK and ACT all blink, ACT blinks faster than 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 1.0.5.16 GXW42XX USER MANUAL PAGE 14 OF 61
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FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 15 OF 61
GXW42XX FEATURES
The GXW42XX is a next generation IP voice gateway that is interoperable and compatible with leading
IP-PBXs, Soft switches and SIP platforms. The GXW42XX FXS gateway is auto-configurable, remotely
manageable and scalable. The GXW42XX gateways come in four models - the GXW4216, GXW4224,
GXW4232and GXW4248,each offering superb voice quality, traditional telephony functionality, easy
deployment, and 16, 24,32 and 48FXS ports respectively. Each model features flexible dialing plans,
integrated call routing to support a pure IP network call and an external power supply.
SOFTWARE FEATURES OVERVIEW
16, 24, 32 or 48FXS ports (no front panel FXS ports on GXW4248)
RJ-45 Ethernet ports
4 configurable SIP profiles
Supports Voice Codecs:
G711(a/µ, Annex I & II), G723.1A, G726 (ADPCM 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
TABLE 3: GXW42XX SOFTWARE FEATURES
GXW4216
GXW4224
GXW4232
GXW4248
Telephone
Interfaces
16 FXS ports
24 FXS ports
32 FXS ports
48 FXS ports
SIP
Provisioning
16 SIP accounts, 4
profiles
24 SIP accounts,4
profiles
32 SIP accounts, 4
profiles
48 SIP accounts, 4
profiles
Network
Interface
10/100/1000 Mbps,
RJ-45
10/100/1000 Mbps,
RJ-45
10/100/1000 Mbps,
RJ-45
10/100/1000 Mbps,
RJ-45
Number of
Concurrent
16 Concurrent Calls
24 Concurrent Calls
32 Concurrent Calls
48 Concurrent Calls

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 16 OF 61
Calls (except
when using
SRTP)
Voice over
Packet
Capabilities
Voice Activity
Detection (VAD) with
CNG (comfort noise
generation) and PLC
(packet loss
concealment), LEC
with NLP Packetized
Voice Protocol Unit
(supports RTP and
AAL2 protocol),
G.168 compliant
Echo Cancellation,
Dynamic Jitter Buffer,
Modem detection &
auto-switch to G.711
Voice Activity
Detection (VAD) with
CNG (comfort noise
generation) and PLC
(packet loss
concealment), LEC
with NLP Packetized
Voice Protocol Unit
(supports RTP and
AAL2 protocol), G.168
compliant Echo
Cancellation,
Dynamic Jitter Buffer,
Modem detection &
auto-switch to G.711
Voice Activity
Detection (VAD) with
CNG (comfort noise
generation) and PLC
(packet loss
concealment), LEC
with NLP Packetized
Voice Protocol Unit
(supports RTP and
AAL2 protocol), G.168
compliant Echo
Cancellation,
Dynamic Jitter Buffer,
Modem detection &
auto-switch to G.711
Voice Activity
Detection (VAD) with
CNG (comfort noise
generation) and PLC
(packet loss
concealment), LEC
with NLP Packetized
Voice Protocol Unit
(supports RTP and
AAL2 protocol),
G.168 compliant Echo
Cancellation,
Dynamic Jitter Buffer,
Modem detection &
auto-switch to G.711
Voice
Compression
G.711 + Annex I
(PLC), Annex II
(VAD/CNG format)
encoder and decoder,
G.722, G.723.1A,
G.726(ADPCM with
16/24/32/40 bit rates),
G.729, iLBC, G.726
provides proprietary
VAD, CNG, and
signal power
estimation, Voice
Play Out unit
(reordering, fixed and
adaptive jitter buffer,
clock
synchronization),
AGC (automatic gain
control),
Status output,
Decoder controlling
via voice packet
header
G.711 + Annex I
(PLC), Annex II
(VAD/CNG format)
encoder and decoder,
G.722, G.723.1A,
G.726(ADPCM with
16/24/32/40 bit rates),
G.729, iLBC, G.726
provides proprietary
VAD, CNG, and signal
power estimation,
Voice Play Out unit
(reordering, fixed and
adaptive jitter buffer,
clock
synchronization),
AGC (automatic gain
control),
Status output,
Decoder controlling
via voice packet
header
G.711 + Annex I
(PLC), Annex II
(VAD/CNG format)
encoder and decoder,
G.722, G.723.1A,
G.726(ADPCM with
16/24/32/40 bit rates),
G.729, iLBC, G.726
provides proprietary
VAD, CNG, and signal
power estimation,
Voice Play Out unit
(reordering, fixed and
adaptive jitter buffer,
clock
synchronization),
AGC (automatic gain
control),
Status output,
Decoder controlling
via voice packet
header
G.711 + Annex I
(PLC), Annex II
(VAD/CNG format)
encoder and decoder,
G.722, G.723.1A,
G.726(ADPCM with
16/24/32/40 bit rates),
G.729, iLBC, G.726
provides proprietary
VAD, CNG, and signal
power estimation,
Voice Play Out unit
(reordering, fixed and
adaptive jitter buffer,
clock
synchronization),
AGC (automatic gain
control),
Status output,
Decoder controlling
via voice packet
header
DHCP
DHCP Client only
DHCP Client only
DHCP Client only
DHCP Client only

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 17 OF 61
Server/Client
Fax over IP
T.38 compliant Group
3 Fax Relay up to
14.4kpbs and auto-
switch to G.711 for
Fax Pass-through,
Fax Datapump V.17,
V.21, V.27ter, V.29 for
T.38 fax relay
T.38 compliant Group
3 Fax Relay up to
14.4kpbs and auto-
switch to G.711 for
Fax Pass-through,
Fax Datapump V.17,
V.21, V.27ter, V.29 for
T.38 fax relay
T.38 compliant Group
3 Fax Relay up to
14.4kpbs and auto-
switch to G.711 for
Fax Pass-through,
Fax Datapump V.17,
V.21, V.27ter, V.29 for
T.38 fax relay
T.38 compliant Group
3 Fax Relay up to
14.4kpbs and auto-
switch to G.711 for
Fax Pass-through,
Fax Datapump V.17,
V.21, V.27ter, V.29 for
T.38 fax relay
QoS
DiffServ, TOS,
802.1P/Q VLAN
tagging
DiffServ, TOS,
802.1P/Q VLAN
tagging
DiffServ, TOS,
802.1P/Q VLAN
tagging
DiffServ, TOS,
802.1P/Q VLAN
tagging
Transport
Protocol
RTP
RTP
RTP
RTP
DTMF Method
In-audio, RFC2833,
and/or SIP Info
In-audio, RFC2833,
and/or SIP Info
In-audio, RFC2833,
and/or SIP Info
In-audio, RFC2833,
and/or SIP Info
IP Signaling
SIP (RFC 3261)
SIP (RFC 3261)
SIP (RFC 3261)
SIP (RFC 3261)
Provisioning
TFTP, HTTP, HTTPS
TFTP, HTTP, HTTPS
TFTP, HTTP, HTTPS
TFTP, HTTP, HTTPS
Security
SRTP, IPSEC,
TLS/SIPS, HTTPS,
802.1x
SRTP, IPSEC,
TLS/SIPS, HTTPS,
802.1x
SRTP, IPSEC,
TLS/SIPS, HTTPS,
802.1x
SRTP, IPSEC,
TLS/SIPS, HTTPS,
802.1x
Management
Syslog support, HTTP
and Telnet access
Syslog support, HTTP
and Telnet access
Syslog support, HTTP
and Telnet access
Syslog support, HTTP
and Telnet access
Dial Plan
Yes
Yes
Yes
Yes
3-Way
Conference
3-Way conference
with local mixing
3-Way conference
with local mixing
3-Way conference
with local mixing
3-Way conference
with local mixing
Caller ID
Bellcore Type 1 & 2,
ETSI, BT, NTT, FSK
and DTMF-based CID
Bellcore Type 1 & 2,
ETSI, BT, NTT, FSK
and DTMF-based CID
Bellcore Type 1 & 2,
ETSI, BT, NTT, FSK
and DTMF-based CID
Bellcore Type 1 & 2,
ETSI, BT, NTT, FSK
and DTMF-based CID
Polarity
Reversal / Wink
Yes
Yes
Yes
Yes
Network
Connectivity
IPv4, IPv6, TCP/UDP,
RTP, HTTP/HTTPS,
ARP/RARP, ICMP,
DNS,DHCP, NTP,
TFTP, TELNET,
PPPoE, STUN
IPv4, IPv6, TCP/UDP,
RTP, HTTP/HTTPS,
ARP/RARP, ICMP,
DNS,DHCP, NTP,
TFTP, TELNET,
PPPoE, STUN
IPv4, IPv6, TCP/UDP,
RTP, HTTP/HTTPS,
ARP/RARP, ICMP,
DNS,DHCP, NTP,
TFTP, TELNET,
PPPoE, STUN
IPv4, IPv6, TCP/UDP,
RTP, HTTP/HTTPS,
ARP/RARP, ICMP,
DNS,DHCP, NTP,
TFTP, TELNET,
PPPoE, STUN

FIRMWARE 1.0.5.16 GXW42XX USER MANUAL PAGE 18 OF 61
HARDWARE SPECIFICATION
The hardware specifications of the GXW FXS series are detailed in Table 4.
TABLE 4: HARDWARE SPECIFICATION OF GXW42XX SERIES GATEWAYS
GXW4216
GXW4224
GXW4232
GXW4248
Telephone Interface
16 RJ11 Ports/
1 RJ21 Port
24 RJ11 Ports/
1 RJ21 Port
32 RJ11 Ports/
2 RJ21 Ports
2 RJ21 Ports only
FXS LEDs
16
24
32
48
Network interface
LAN, Single 10/100/1000 BASE-TX,RJ45
Power Input
Input:100-240VAC, 50/60Hz
Output: 12V DC, 5.0A(4216/24/32)
24V DC, 6.25A(4248 only)
LCD screen
128×32 pixel
Telco connector
1 RJ21 (50 pins)
1 RJ21 (50 pins)
2 RJ21 (50 pins)
2 RJ21 (50 pins)
RJ-11 connectors
Yes
Yes
Yes
No
NAND Flash
64MB
DRAM
128MB (+ separate 8MB if with a slave processor)
Function Buttons
1 button for Reset/Factory Reset
Environmental
Operation: 0°C to 45°C
Storage: -20°C to 60°C
Humidity: 10％to 90% Non-condensing
Mounting
Desktop and Rack mount
Onhook Voltage
Fixed, 48V
Ring Voltage
50Vrms (balanced ringing)
Ring Frequency
20-50Hz
Short Haul Loop
2REN: Up to 2km on
24 AWG wire
2REN: Up to 2km on
24 AWG wire
2REN: Up to 2km on
24 AWG wire
2REN: Up to 2km on
24 AWG wire
Outdoor Protection
Over-voltage Protection and surge immunity
Signaling
FXS Loop-start
EMC
EN55022/EN55024 and FCC part15 Class B
Safety
UL
Compliance
FCC, CE, C-Tick