VanAccess GW0221 User manual

User Manual GW0221
User Manual
GW0221
Analog Telephone Adaptor

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Table of Contents
1 WELCOME............................................................................................................................1
2 WHAT IS IN THE PACKAGE...................................................................................................2
3 PRODUCT OVERVIEW...........................................................................................................2
3.1 Key Features...............................................................................................................2
3.2 Hardware Specification................................................................................................2
4 INSTALLATIONS..................................................................................................................... 3
4.1 Safety Compliances.....................................................................................................3
5 BASIC OPERATIONS.............................................................................................................4
5.1 Get Familiar with Voice Menu.......................................................................................4
5.2 Make Phone Calls........................................................................................................5
5.2.1 Calling Phone or Extension Numbers...................................................................5
5.2.2 Direct IP-to-IP Calls...........................................................................................5
5.2.2.1 IP-to-IP Dialing Instructions ............................................................................6
5.2.3 Blind Transfer....................................................................................................6
5.2.4 Attended Transfer..............................................................................................7
5.3 CALL FEATURES..........................................................................................................8
5.4 Status Light Indicator..................................................................................................9
6 CONFIGURATION GUIDE ......................................................................................................9
6.1 Configuring GW0221 using Web Browser (Recommended)..........................................9
6.1.4 User Programming and Configuration ............................................................... 11
6.1.5 Passwords....................................................................................................... 12
6.1.6 Configuration Options and Explanations............................................................ 12
6.1.7 Saving the Configuration Changes .................................................................... 20
6.1.8 Rebooting the GW0221.................................................................................... 21
6.2 Configuring GW0221 via Voice Prompt ....................................................................... 21
6.2.1 DHCP Mode..................................................................................................... 21
6.2.2 STATIC IP Mode .............................................................................................. 21
6.3 Configuration through a Central Server......................................................................... 21
7 SOFTWARE UPGRADE......................................................................................................... 22
8 KNOWN LIMITATIONS WITH GW0221 Old PBX / Telephone Switch....................................... 22
9 WARRANTY.......................................................................................................................... 22
1 WELCOME
GW0221 is an all-in-one VoIP integrated access device that features superb audio quality, rich
functionalities, high level of integration, compactness and ultra-affordability. The GW0221 is fully
compatible with SIP industry standard and can interoperate with many other SIP compliant devices
and software on the market.
Special compatibility features include:
• Nortel MCS
• Standard SIP
• Broadsoft
• Howdy

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GW0221 allows call origination and termination from/to the PSTN line (via FXO port which is labeled
“Line”) and automated emergency call routing through PSTN network (in the case of power failure).
2 WHAT IS IN THE PACKAGE
The GW0221 package contains:
1) One GW0221 VoIP adapter
2) One universal power supply
3) One Ethernet cable
4) One phone cable
3 PRODUCT OVERVIEW
3.1 Key Features
• Supports SIP 2.0(RFC 3261), TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS, DHCP (both
client and server), NTP, PPPoE, STUN, TFTP, etc.
• Built-in router, NAT, Gateway and DMZ port forwarding
• Supports call origination and termination from/to the PSTN network
• Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive
jitter control and packet loss concealment technology
• Support various codecs including G.711 (a-law and u-law), G.723.1 (5.3K/6.3K), G.726
(40K/32K/24K/16K), as well as G.728, G.729A/B, and iLBC.
• Support Caller ID/Name display or block, Hold, Call Waiting/Flash, Call Transfer, Call Forward,
in-band and out-of-band DTMF, Dial Plans, etc.
• Support fax pass through and T.38
• Support Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise
Generation), Line Echo Cancellation (G.168), and AGC (Automatic Gain Control)
• Support standard encryption and authentication (DIGEST using MD5 and MD5-sess)
• Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
• Support automated NAT traversal without manual manipulation of firewall/NAT
• Support device configuration via built-in IVR, Web browser or central configuration file through
TFTP or HTTP
• Support firmware upgrade via TFTP or HTTP with encrypted configuration files.
• Ultra compact (wallet size) and lightweight design, great companion for travelers
• Compact, lightweight Universal Power adapter.
3.2 Hardware Specification

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The table below lists the hardware specification of GW0221.
Model GW0221
LAN interface 1 x RJ45 10 Base-T
WAN interface 1 x RJ45 10 Base-T
FXS telephone port 1 x RJ11
FXO port 1 x RJ11
Button 1
LED Light Green and red color
Input: 100-240VAC 50-60 HzUniversal Switching Power Supply
Output: +9VDC, 500mA,
70mm (W)
110mm (D)
Dimension
27mm (H)
All Package Weight 0.30kg
40 – 130 FTemperature 5 – 45 C
Humidity 10 - 90%
Certification FCC, CE
4 INSTALLATIONS
The GW0221 is an all-in-one VoIP integrated device designed to be a total solution for networks
providing VoIP services. The GW0221 VoIP features are available when you connect any regular
analog telephone to it.
GW0221 has one FXS port (labeled “Phone”) and one FXO port (labeled “Line”). After setting up the
GW0221, you can make PSTN calls by pressing *00. Without pressing *00, all your calls will be VoIP.
You can also receive PSTN calls and VoIP calls.
Following are the steps to install a GW0221:
1. Connect a standard touch-tone analog telephone to the “Phone” port.
2. Insert a standard RJ11 telephone cable (included with package) into the “Line” port and
connect the other end of the telephone cable to a wall jack.
3. Connect a PC to the LAN port of GW0221 (Ethernet cable is included with package).
4. Insert another Ethernet cable into the WAN port of GW0221 and connect the other end of
the Ethernet cable to an uplink port (a router, switch, hub, modem, etc)
5. Insert the powers supply (included with package) into the GW0221 and connect it to a
power outlet.
4.1 Safety Compliances

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The GW0221 is compliant with various safety standards including FCC/CE and C-Tick. Its power
adaptor is compliant with UL standard. The GW0221 should only operate with the universal power
adaptor provided in the package.
Warning: Please do not use a different power adapter. Using other power adapter may damage the
GW0221 and will void the manufacturer warranty.
Caution: Changes or modifications to this product not expressly approved by Van Access, or operation
of this product in any way other than as detailed by this User Manual, could void your manufacturer
warranty.
Information in this document is subject to change without notice. No part of this document may be
reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose
without the express written permission of Van Access.
5 BASIC OPERATIONS
5.1 Get Familiar with Voice Menu
GW0221 has stored a voice prompt menu for quick access to settings and simple configuration. You
can enter this voice prompt menu two ways:
1) Pick up the receiver (or press the Hands free button) of the analog telephone and press “***”,
or
2) Pick up the receiver (or press the Hands free button) of the analog telephone and press the
light button in the middle of the GW0221.
A voice will say, “Enter the new option.” At this point, you can select from the following menu voice
prompt options to begin using the GW0221:
Menu Voice Will Say the Following: Options
Main Menu “Enter a new option” Enter “*” for the next menu option.
Enter “#” to return to the main menu.
01 “DHCP Mode”, “Static IP Mode” Enter “9” to select between "DHCP" or "Static" mode.
02 “IP Address “ + IP address The current WAN IP address is announced. Enter 12
digit new IP address if in Static IP Mode.
03 “Subnet “ + IP address Same as menu 02
04 “Gateway “ + IP address Same as menu 02
05 “DNS Server “ + IP address Same as menu 02
06 “TFTP Server “ + IP address Same as menu 02

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47 “Direct IP Calling”
When entered, you will hear dial tone. Enter the 12
digit IP address of the voip device you want to call.
T
his option can also be accessed by picking up the
receiver (or use handsfree) and pressing twice on the
light button in the gateway.
86 “Voice Messages Pending” Enter “9” to dial pre-configured phone number to
retrieve voicemail messages (if VoIP gatekeeper
supports this feature)
99 "RESET" Enter “9” to reboot the phone.Enter encoded MAC
address to restore factory default setting.
“Invalid Entry” Automatically returns to main menu
Other Menu Prompt Features:
• Just like pressing “***” on the analog telephone, you can also access the voice menu by pressing
once on the center light button of the GW0221. By pressing twice on the light button, you will hear
“Direct IP Calling”, which is just like selecting option 47 from the table above.
• “*” shifts down to the next menu option
• “#” returns to the main menu
• “9” functions as the ENTER key in many cases to confirm an option
• All entered digit sequences have known lengths - 2 digits for menu option and 12 digits for IP
address. Once all of the digits are collected, the input will be processed.
• Incorrect keyed entry cannot be deleted or undone. The GW0221 will prompt you to start over by
telling you that you made an error.
5.2 Make Phone Calls
5.2.1 Calling Phone or Extension Numbers
a) Dial the number directly and wait for 4 seconds (Default is 4 seconds. To change the default,
change the settings via the web configuration page under “No Key Entry Timeout”). Or
b) Dial the number directly, and press # (assuming that “Use # as Dial Key” is set to “YES” during web
configuration of your GW0221).
Other functions available during the call are call-waiting/flash, call-transfer, and call-forward. Your
SIP gatekeeper/proxy server needs to support these features in order for them to work.
5.2.2 Direct IP-to-IP Calls
Direct IP calling allows two phones (a GW0221 and another GW0221 or another VoIP device), to call
each without a SIP gatekeeper or proxy server. VoIP calls can be made between two phones without
a VoIP service provider if:

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• Both GW0221 and the other VoIP device (i.e., another GW0221 or another SIP device) have public
IP addresses, or
• Both GW0221 and the other VoIP device (i.e., another GW0221 or another SIP device) are on the
same LAN using private or public IP addresses, or
• Both GW0221 and the other VoIP device (i.e., another GW0221 or another SIP device) can be
connected through a router using public or private IP addresses.
To make a direct IP call, first pick up the analog phone (or use the handsfree button), and follow
Section 5.1 using menu option “47”. When you hear the voice say, “Direct IP Calling”, enter the
12-digit IP address of the VoIP device you want to call. Destination ports can be specified by using
“*4” (encoding for “:”) followed by the encoded port number. Following is a table of the encoding
scheme for the most commonly used characters:
Input Meaning
00 0
01 1
02 2
03 3
04 4
05 5
06 6
07 7
08 8
09 9
*0 . (dot character)
*4 : (column character)
5.2.2.1 IP-to-IP Dialing Instructions
If the IP address of the device you want to call is 192.168.1.107, then the dialing method is:
Get voice prompt (“Direct IP Calling”) by pressing “***” and then selecting option 47, OR press
the light button twice. Then press 192168001107 followed by pressing the “#” key (if “#” is
configured as a enter/send key during web configuration) or wait 4 seconds. In this case, the
default destination port 5060 of the device you are calling is used if no port is specified.
If the target IP address/port is 192.168.1.107:5062, then the dialing method would be:
Get voice prompt (“Direct IP Calling”) by pressing “***” and then selecting option 47, OR press the
light button twice. Then press 192168001107*45062 followed by pressing the “#” key (if “#” is
configured as a enter/send key) or wait 4 seconds.
5.2.3 Blind Transfer
Assuming that call party A and party B are talking to each other on the phone. Party A wants to
transfer party B to party C:

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1. Party A presses FLASH (on the analog phone, or Hook Flash for old model phones) to get a dial
tone.
2. Then party A dials *87 then dials party C’s number, and then # (or wait for 4 seconds)
3. Party A can hang up the phone.
Note: Call features have to be activated during web configuration by selecting YES to “Enable Call
Features”. These features need to be supported by your SIP gatekeeper/proxy server in order to
work.
Party A can hold on to the phone and wait for one of the three following events:
• A quick confirmation tone (temporarily using the call waiting indication tone) followed by a dial tone.
This indicates the transfer is successful (transferee has received a 200 OK signal from transfer target).
At this point, party A can either hang up or make another call.
• A quick busy tone followed by a restored call (on supported SIP gatekeeper platforms only). This
means the transferee has received a 4xx response signal for the INVITE and will try to recover the call.
The busy tone is just to indicate to the transferor that the transfer has failed.
• Busy tone keeps playing. This means the GW0221 has failed to receive the second NOTIFY signal
from the transferee and decided to time out. Note: this does not indicate the transfer has been
successful, nor does it indicate the transfer has failed. When transferee uses a device that does not
support the second NOTIFY signal, this will be the case. In poor or unstable network scenarios, this
could also happen, although the transfer may have been completed successfully.
5.2.4 Attended Transfer
Assuming that call party A and party B are in conversation. Party A wants to attend transfer party B to
party C:
1. Party A presses FLASH (on the analog phone, or Hook Flash for old model phones) to get a dial
tone.
2. Party A then dials party C’s number then # (or wait for 4 seconds). Party A and party C now are
in conversation.
3. Party A can hang up.
Note: When Attended Transfer failed and if party A hangs up, the GW0221 will ring party A again to
remind party A that party B is still on the call, by pressing FLASH or Hook again will restore the
conversation between party A and party B.
5.2.5 3-Way Conference Calls
Assuming that call party A called party B, and now they are in conversation. Party A wants to let party
C to attend the conversation:
1. Party A presses FLASH (on the analog phone, or Hook Flash for old model phones) to get a dial
tone.
2. Party A then dials *23, then press party C’s number then # (or wait for 4 seconds). Party A and
party C now are in conversation.
3. Party A presses FLASH again, now the 3 parties are all in conversation.
Note: The gatekeeper needs to support this function for this feature or the phones to work.
5.2.6 Make and Receive PSTN Calls

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Users can send and receive calls from PSTN. To receive PSTN calls, simply pick up the phone
receiver (or use hands free) when the analog phone rings. To make a PSTN call, first press *00 (*00
is default. You can change the “PSTN Access Code” via the web configuration screen) to get the
PSTN line dial tone and then dial the PSTN number you want to call.
5.3 CALL FEATURES
5.3.1 Call Features Table
Following table shows the call features of GW0221.
Key Call Features
*30 Block Caller ID (for all subsequent calls)
*31 Send Caller ID (for all subsequent calls)
*67 Block Caller ID (per call)
*82 Send Caller ID (per call)
*50 Disable Call Waiting (for all subsequent calls)
*51 Enable Call Waiting (for all subsequent calls)
*70 Disable Call Waiting. (Per Call)
*71 Enable Call Waiting (Per Call)
*72 Unconditional Call Forward. To use this feature, dial “*72” and get the dial tone. Then dial the forward number
and “#” for a dial tone, and then hang up.
*73 Cancel Unconditional Call Forward. To cancel “Unconditional Call Forward”, dial “*73” and get the dial tone, then hang
up.
*90 Busy Call Forward. To use this feature, dial “*90” and get the dial tone. Then dial the forward number
and “#” for a dial tone, and then hang up.
*91 Cancel Busy Call Forward.
To cancel “Busy Call Forward”, dial “*91” and get the dial tone, then hang up.
*92 Delayed Call Forward. To use this feature, dial “*92” and get the dial tone. Dial the forward number and
“#” for a dial tone and then hang up.
*93 Cancel Delayed Call Forward.
To cancel this feature, dial “*93”, get the dial tone, and then hang up.
Flash/Hook When in conversation, this action will switch to the new incoming call if there is a call
waiting indication. When in conversation without an incoming call, this action will
switch to a new channel to make a new call.
5.3.2 PSTN Pass Through
When GW0221 is out of power or loses registration or if the network connection is down, the RJ 11

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line jack on the side of GW0221 will function as a pass through connection for PSTN calls. Users will
be able to use the same analog phone for PSTN calls.
5.4 Status Light Indicator
Following tables show the GW0221 button light pattern indication.
Light Indicator Signal Pattern Status Meaning
Red Light Red light flashes every 2 seconds (if internet
connection is configured for DHCP) DHCP failed or WAN port has no ethernet connection.
Red Light Red light flashes every 2 seconds (if SIP
server is configured) GW0221 is not able to register with SIP gatekeeper/proxy server
Green Light Button flashes every 2 seconds Message waiting (if feature is available)
Green Light Button flashes at 1/10 second Phone is ringing. Incoming call in progress.
6 CONFIGURATION GUIDE
6.1 Configuring GW0221 using Web Browser
(Recommended)
GW0221 has embedded Web server and HTML pages that allow users to configure the GW0221
through an easy-to-use Web browser interface such as Microsoft’s Internet Explorer or Netscape
browser. Below is a screen shot of the GW0221 configuration page:

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6.1.1 Accessing the Web Configuration Page
The GW0221 configuration page can be accessed via the LAN or WAN port.
6.1.2 Programming GW0221 via the LAN Port:
To program GW0221 via the LAN port, directly connect an Ethernet cable from your PC to the LAN
port of the GW0221. After connecting the cable, confirm that the green light of the LAN port is on.
If the green light is not on, this means that your PC is not yet properly connected to the GW0221 via
the LAN port.
For LAN port configuration, use the following default IP address to access the device:
http://192.168.2.1
6.1.3 Programming GW0221 via the WAN Port:
The WAN port access for web configuration is disabled by default from the factory. To access the
web configuration menu from the WAN port, you must first access the device via the device LAN port
(see instructions above “Programming GW0221 via the LAN port”) and enable the “WAN Web Access
to Device” option.

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After enabling WAN access, be sure that the WAN port of the GW0221 is connected to an uplink (i.e.
router, hub, switch, etc). Then, get the WAN IP address of the GW0221 by following section 5.1 of
this user manual and selecting menu option 02. Then, access the GW0221 via your web browser by
entering the WAN IP address:
http://GW0221’s IP Address
Be sure that your PC is connected to the router/hub/switch directly or via the LAN port (which also
serves as a pass-through connection for internet/network access for your PC) of the GW0221.
6.1.4 User Programming and Configuration
From your web browser, the GW0221 will show the following login screen:

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Enter the password and click on the “Login” button.
6.1.5 Passwords
Passwords are case sensitive and all GW0221 devices come with factory default passwords as
indicated below:
Advanced User Password for access to Super User Options: voip
End User Password for access to Basic User Options: 123
6.1.6 Configuration Options and Explanations
After a correct password is entered in the login screen, the embedded web server inside the GW0221
will show the configuration page, which is explained in details below:

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SIP Settings:
SUPER USER OPTIONS PAGE
SIP Settings
Options Meaning
SIP Server Address Gatekeeper's / SIP Server’s URL or IP address
Outbound Proxy SIP Outbound Proxy Server’s URL or IP address
SIP User ID SIP service subscriber’s User ID
Account ID SIP service subscriber’s Authenticate ID. Can be identical to, or different from,
SIP User ID
Authentication
Password SIP service subscriber’s account password (for security, the password does not display)
Name SIP service subscriber’s name which will be used for Caller ID display
Use DNS SRV: Default is No. If set to Yes, then the client will use DNS SRV for server lookup
User ID is Phone
Number
If the GW0221 has an assigned PSTN telephone number, then this field should be
set to “Yes”. Otherwise, set it to “No”. If “Yes” is set, a “user=phone” parameter
will be attached to the “From” header in SIP request message to SIP server
Silence Suppression
This controls the silence suppression/VAD feature of G723 and G729. If set to
“Yes”, when a silence is detected, small quantity of VAD packets (instead of
audio packets) will be sent during the period of no talking to make the connection
feel more "natural". If set to “No”, this feature is disabled.
SIP Registration This parameter controls whether the GW0221 needs to send REGISTER
messages to the proxy server. The default setting is “Yes”.

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Unregister on
Reboot Default is “No.” If set to “Yes”, then the SIP user will be unregistered on reboot.
Register Expiration
This parameter allows the user to specify the time frequency (in minutes) the
GW0221 refreshes its registration with the specified gatekeeper/SIP server. The
default interval is 60 minutes (or 1 hour). The maximum interval is 65535
minutes (about 45 days).
Local SIP Port This parameter defines the local SIP port the GW0221 listens and transmits
signals. The default value for FXS port is 5060. The default value for FXO port is
5062.
Local RTP port
This parameter defines the local RTP-RTCP port pair the GW0221 will
listen and transmit signals. It is the base RTP port for channel 0. When
configured, channel 0 will use this port _value for RTP and the port_value+1 for
its RTCP; channel 1 will use port_value+2 for RTP and port_value+3 for its RTCP.
The default value for FXS port is 5004. The default value for FXO port is 5008.
Use Random Port When set to “Yes”, this parameter will force random generation of both the local
SIP and RTP ports. This is usually necessary when multiple GW0221
are behind the same NAT.
NAT Traversal
This parameter defines whether the GW0221 NAT traversal mechanism will be
activated or not. If activated (by choosing “Yes”) and a STUN server address is
also specified, then the GW0221 will automatically follow the STUN client
specifications. Under this mode, the embedded STUN client inside the GW0221
will attempt to detect if there is a (and type of) firewall/NAT it is sitting behind
through communication with the specified STUN server. If the detected NAT is a
Full Cone, Restricted Cone, or a Port- Restricted Cone, the GW0221 will attempt
to use its mapped public IP address and port in all of its SIP and SDP messages.
If the NAT Traversal field is set to “Yes” with no specified STUN server, the
GW0221 will periodically (every 20 seconds) send a blank UDP packet (with no
payload data) to the SIP server to keep the “hole” on the NAT open.
Keep Connected
Interval This parameter specifies how often the GW0221 sends a blank UDP packet to the SIP server in order to keep the “hole” on the NAT open.
Use NAT IP: NAT IP address used in SIP/SDP message. Default is blank.
Proxy-Require SIP Extension to notify SIP server that the unit is behind the NAT/Firewall.
Send DTMF This parameter controls how DTMF events are transmitted. There are 3 ways:
In-Audio which means DTMF is combined in audio signal (not very reliable
with low-bit-rate codec), via RTP (RFC2833), or via SIP INFO.
DTMF Payload
Type This parameter sets the payload type for DTMF using RFC2833
Send Flash Event This parameter allows users to control whether to send a SIP NOTIFY
message indicating that the phone’s Flash key has been pushed, or just to switch
to the voice channel when users press the Flash key.
Send Anonymous If this parameter is set to “Yes”, the “From” header in outgoing INVITE message
will be set to anonymous, essentially blocking the Caller ID from displaying.
Audio Settings:

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Audio Settings
Options Meaning
Preferred Codec
The GW0221 supports up to 7 different Codec types including G.711
A-/U-law，G.723.1, G.726, G.728, G.729A/B, iLBC. Users can configure Codecs
in a preference list that will be included with the same preference order in SDP
message. Choosing the appropriate option in “Choice 1” can enter the first
Codec in this list. Similarly, choosing the appropriate option in “Choice 7” can
enter the last Codec in this list.
G723 Rate: This defines the encoding rate for G723 codec. By default, 6.3kbps rate is
chosen.
iLBC Frame Size: This sets the iLBC size in 20ms or 30ms
iLBC Payload Type: This defines payload time for iLBC. Default value is 98. The valid range is
between 96 and 127.

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Voice Frames per
TX
This field contains the number of voice frames to be transmitted in a single
packet. When setting this value, the user should be aware of the requested
packet time (used in SDP message) as a result of configuring this parameter.
This parameter is associated with the first codec in the above codec
Preference List or the actual used payload type negotiated between the 2
conversation parties at run time. For example, if the first codec is configured as
G723 and the “Voice Frames per TX” is set to be 2, then the “ptime” value in the
SDP message of an INVITE request will be 60ms because each G723 voice frame
contains 30ms of audio. Similarly, if this field is set to be 2 and if the first codec
chosen is G729 or G711 or G726, then the “ptime” value in the SDP message of
an INVITE request will be 20ms. If the configured voice frames per TX exceeds
the maximum allowed value, the GW0221 will use and save the maximum
allowed value for the corresponding first codec choice.
T
he maximum value for
PCM is 10(x10ms) frames; for G726, it is 20 (x10ms) frames; for G723, it is 32
(x30ms) frames; for G729/G728, 64 (x10ms) and 64 (x2.5ms) frames,
respectively.
Layer 3 QoS This field defines the layer 3 QoS parameter, which can be the value used for IP
Precedence or Diff-Serv or MPLS. Default value is 48.
Layer 2 QoS This contains the value used for layer 2 VLAN tag. Default setting is blank.
Dial Settings:
Dial Settings
Options Meaning
Early Dial Default is “No”. Use only if proxy supports 484 response
Dial Plan Prefix Sets the prefix added to each dialed number
No Key Entry
Timeout Default is 4 seconds. This is the time lapse after entering a phone number for the GW0221 to begin completing your call.
Use # as Dial Key
This parameter allows users to configure the “#” key to be used as the “Send /
Enter” (or “Dial”) key. If set to “Yes”, pressing this key will immediately trigger the
sending of dialed numbers entered thus far. In this case, this key is essentially
equivalent to the “(Re)Dial” key. If set to “No”, this “#” key will then be included
as part of the dial string to be sent out.

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Off-hook Auto-Dial
This parameter allows users to configure a User ID or extension number to be
automatically dialed upon off-hook. Please note that only the user part of a SIP
address needs to be entered here. The GW0221 will automatically
append the “@” and the host portion of the corresponding SIP address.
Enable Call Features Default is “No”. If set to “Yes”, Call Forwarding & Do-Not-Disturb are supported
locally
Disable Call Waiting Default is “No”.
PSTN Access Code This field allows users to customize their own code to access the PSTN line and
make PSTN calls. Default is “*00”.
Other settings:

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Other Settings
Options Meaning
HTTP Upgrade
Server
The URL for the HTTP server used for firmware upgrade and configuration via
HTTP. For example, http://upgrade.myVoIPservice.com:6688/GATE102
Here “:6688” is the specific TCP port that the HTTP server is listening to, it can
be omitted if using default port 80. Note: Auto Upgrade has to be set to “Yes”
to enable HTTP upgrade.
Auto Upgrade Choose Yes to enable HTTP upgrade and provisioning. In “Check for new
firmware every ___ days” field, enter the number of days to check the
HTTP server for firmware upgrade or configuration.
Subscribe for MWI: Default is “No”. When set to “Yes” a SUBSCRIBE for Message Waiting
Indication will be sent periodically.
FXS Impedance Selects the impedance of the analog telephone connected to the Phone port.
Lock Keypad
Update If this parameter is set to “Yes”, the configuration update via keypad is disabled.
Special Feature
Special compatibility features include
• Standard (SIP)
• Nortel MCS
• Broadsoft
• Howdy
WAN Web Access to
Device If this parameter is set to “No”, the HTML configuration update via WAN port is disabled.
Super Password Default is “voip” (version difference). This contains the password to access the
Advanced Web Configuration page. This field is case sensitive.
WAN Settings:

GW0221 User Manual
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BASIC USER OPTIONS PAGE
WAN Settings
Options Meaning
WAN IP Address This field shows WAN port IP address.
Cloned WAN MAC
Address: Allow the user to set a specific MAC address. Set in Hex format
LAN Settings
Options Meaning
LAN Subnet Mask Sets the LAN subnet mask. Default value is 255.255.255.0
LAN DHCP Base IP: Base IP for the LAN port which functions as a Gateway for the subnet.
Default value is 192.168.2.1
DHCP IP Lease Time:Value is set in units of hours. Default value is 120hr (5 Days) The time IP
address are assigned to the LAN clients
NAT Settings
Options Meaning
DMZ IP: Forward all WAN IP traffic to a specific IP address if no matching port is used by
GW0221 itself or in the defined port forwarding.