Yoda VG400R User Manual

VoIP Router

User’s Guide

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Trademarks

Contents are subject to revise without prior notice.
All trademarks belong to their respective owners.

FCC Warning

This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when
the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the Instruction manual, may cause
harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause
radio interference in which case the user will be required to
correct the interference at his or her own expense.

CE-mark Warning

This is a Class A product. In a domestic environment, this
product may cause radio interference, in which case the
user may be required to take adequate measures.

Revision

INSTALLATION GUIDE
V1.0

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TABLE OF CONTENTS

1. ABOUT THIS GUIDE......................................................1

1.1 Before Start up ...................................................................1

1.2 Notation Conventions (for console or telnet setting).......2

2. START UP PREPARATION...........................................4

3. WAN CONFIGURATION ...............................................5

3.1 Static IP Address Environment.........................................5

3.2 Dynamic IP Address Environment.................................11

3.2.1 Applying for a host name in the dynamic IP

environment ..............................................................12

3.2.2 PPPoE application set up...........................................13

3.2.3 DHCP application set up............................................18

4. LAN CONFIGURATION...............................................24

4.1 LAN Interface Configuration .........................................24

5. ADVANCED FEATURES..............................................29

5.1 Access to Advanced Features Menu ...............................29

5.2 DMZ Configuration.........................................................31

5.3 Virtual Servers Configuration........................................34

5.4 Port Forwarding Configuration .....................................37

5.5 Special Applications Configuration................................40

5.6 Access Control Configuration.........................................43

5.6.1 W orkgr oup Access Configuration.............................45

5.6.2 Packet Filter Table Configuration............................47

5.7 Dynamic DNS Configuration..........................................49

6. DIAL PLAN SET UP......................................................53

6.1 Concepts............................................................................53

6.1.1 The Voice Port.............................................................53

6.1.2 The dial plan...............................................................54

6.2 Web Browser Configuration ...........................................56

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7. CONFIGURATION EXAMPLES (USE CONSOLE

OR TELNET COMMANDS)..............................................68

7.1 The default dial-plans......................................................68

7.2 ITG to ITG in the Static IP Address Environment........70

7.3 ITG to ITG in the Dynamic IP Address Environment..75

7.4 PBX related issues............................................................79

7.4.1 CP Tone Detection ......................................................79

7.4.2 Call Security................................................................79

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1.ABOUT THIS GUIDE

This Guide uses VG400R as a general example and contains
the following information:

Start Up Preparation: This chapter illustrates how to prepare
for the Internet Voice Gateway (VG) set up through console
interface or network interface.

WAN Configuration: You will learn how to set up IP address
and related configuration for your VG-400R in WAN side
environments such as static IP address, dynamic IP address.

LAN Configuration: You will learn how to set up IP address
and related configuration for your VG-400R in LAN side
environments such as static IP address, DHCP IP address.

Advanced Features: You will learn how to set up advance
features for LAN access management and DDNS configuration
for your VG-400R.

Dial Plan Setup: We will provide necessary procedure to guide
you step by step for a typical dial plan set up.

Configuration Example: This chapter shows you how to use
the default settings to start up your first call. Examples will be
given to show you how an VG may be working with telephony
devices such as PBXs and phone sets.

L

Hint

Bypass the Advanced Features chapter if you do
not want to do any LAN access management.

1.1 Before Start up

Before setting up your VG-400R the first time, you are required
to have the following:

1

 A PC that may run a web browser program such as

Netscape, Internet Explorer, etc.

 A 10/100 BaseTX Cat. 5 Ethernet LAN cable with RJ-45

connector.

 A console cable, where you may find it in the ITG package

(for 4/8xxR).

And later on, you are required to get familiar with your
environment, your TCP/IP network and your phone systems.

1.2 Notation Conventions (for console or telnet
setting)

This document uses the following conventions:
 Examples that contain system prompts denote interactive

sessions, indicating that the user enters commands at the
prompt.

 Different type styles and characters are used. These

serve a variety of purposes as described below:

Convention Description
boldface

Commands and keywords are in

boldface.

Bold Arial

User input (anything you are expected to

type in) is set in bold Arial.
italic Arguments for which you supply values.
[ ] Elements in square brackets are optional.
{ x | y | z } Alternative but required elements are

grouped in braces ({ }) and separated by

vertical bars ( | ).
[ x | y | z ] Optional alternative keywords are

grouped in brackets ([ ]) and separated by

vertical bars ( | ).

2

“string” A non-quoted set of characters. Do not

use quotation marks around the string or

the string will include the quotation marks.
<key> A key on the VT-100 terminal or terminal

emulator. For example <Enter> denotes

the Enter key.

3

2.START UP PREPARATION

This chapter shows you how to prepare for the VG-400R set
up for your network and/or Internet. We will focus on the web
browser usage.

Since the VG-400R comes with two default IP addresses, one
is for LAN side that is “192.168.0.1” and the other is for WAN
side that is “172.16.0.1”. You may use any PC to connect to
the LAN port of VG-400R, and then follow the steps below:

1) Set up the PC with an IP address in the “192.168.0.x” IP
domain, say, “192.168.0.2” with subnet mask address
“255.255.255.0” or choose “Obtain an IP address
automatically”

2) Start up the browser. In the address field, key in the
address http://192.168.0.1. The pop-up screen should
appear and prompt for user name and password. The
default values are:

User name: eitg (all lower case)
Password: 123

Now you are ready to perform the Network configuration set
up described in the next chapter.

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3.WAN CONFIGURATION

We will show you the basic steps for a typical VG-400R
connection in various environments. It includes static IP
address environment and dynamic IP address environment.

3.1 Static IP Address Environment

There are several typical static IP address environment where
the following procedure may apply, such as popular
broadband application with ADSL or Cable network.

Run Web Browser such as Netscape or Internet Explorer.

Set

the address field to 192.168.0.1, type in the enter key, then
VG-400R will respond with the following page.

5

Enter eitg in “User Name” field and 123 in “Password” field
Then select “OK”, VG-400R will show the “Main Menu” as
follows:

6

Click “NAT” for all the WAN/LAN related settings, and VG-400R
will display the following:

7

Click “WAN” for WAN Configuration Menu, and VG-400R will
display the following screen:

8

Click “Fixed IP” to enter all fix IP related information:

9

Fill in “IP address”, “Subnet Mask”, and “Gateway (Router) IP
address” associated with this VG-400R.

Fill in “Primary DNS server” and/or “Secondary DNS server”
with IP address that ISP has provided.

Fill in “IP TOS” parameter for ‘Precedence’, ‘Delay’,
‘Throughput’ and ‘Reliability’ if your ISP provided. The ranges of
these parameters are:

Precedence: 0 to 7, 0= Routine(Low), 7= Network
Control(High)

Delay :0= Normal, 1= Low.
Throughput :0= Normal, 1= High
Reliability :0= Normal, 1= High
Click ‘OK’ to store all above information.

10

Reboot the VG-400R when the above information is stored
successfully.

3.2 Dynamic IP Address Environment

In this section we will show you how to obtain a valid host
name in the dynamic IP address environment first, followed by
the way to set up a typical VG-400R connection in the
dynamic IP address environment via built-in PPPoE, DHCP,
and DDNS clients.

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3.2.1 Applying for a host name in the dynamic IP

environment

First, it is required to apply for a DDNS host name from
http://www.dyndns.org for the VG-400R. (For example, the
name you may obtain is mary01.dyndns.org for the VG-400R.)

mary01.dyndns.org is applied for the ITG.
If you have already obtained a valid host name with your user

name and password from the dynamic DNS server such as
www.dyndns.org

, you may skip the following and go to

Section 3.2.2 directly.

1) Go to the dyndns web page
www.dyndns.org

2) Click “Sign Up Now”

3) Click “Agree” on Acceptable User Policy.

4) Create NIC User Account
Example:
User Name: Mary
Email Address: [e-mail]
Password: hbear
Click “Create Account”

5) Wait for DYNDNS email for confirmation of your account.

6) Go to the www.dyndns.org

web page again

7) Click “login”

8) Type in your user name and password

9) Click “Dynamic DNS” and “Add New Host”

10) Type in ‘New Host Name’ and select ‘dyndns.org’
For example: mary01.dyndns.org

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11) Click “Add Host” if another host name is needed and go to
Step 10, otherwise the host name application is done.

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Hint

The DDNS configuration please refers Chapter 5.7
for detailed.

3.2.2 PPPoE application set up

In this section we’d like to introduce steps to setup the PPPoE
application for dynamic IP address environment.

Use Browser to get into the “Main Menu”:

13

Click “NAT” for all the WAN/LAN related settings, and VG-400R
will display as follows:

14

Click “WAN” for WAN Configuration Menu, and VG-400R will
display the following screen:

15

Click “PPPoE” and prepare to key in all PPPoE related
information:

16

Select “ON” for PPPoE, key in “User name” and “Password”
that ISP has provided. “Service name” may be entered if your
ISP has also provided it.

Click “OK” to store all the above information.

17

Reboot the VG-400R when all the above settings are stored
successfully.

3.2.3 DHCP application set up

In this section we’d like to show you how to configure the DHCP
Client application for dynamic IP address environment.

Use Browser to get into the “Main Menu”:

18

Click “NAT” for all the WAN/LAN related settings, and VG-400R
will display the following screen:

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Click “WAN” for WAN Configuration Menu, and VG-400R will
display the following screen:

20

Click “DHCP Client” for DHCP Client Settings, and VG-400R
will display the following screen:

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At “DHCP Client” field, select “on” for enable DHCP client.
Key in “Router name” and “Domain name” if ISP required.
At “Use local MAC addr.” field, select “Yes”, if ISP requires

Local MAC addr. for link authentication, and fill in the following
“Local MAC addr. field ” with your Local MAC address.

Click “OK” to store all the above information.

22

Reboot the VG-400R when all the above settings are stored
successfully.

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4.LAN CONFIGURATION

We will show you the basic steps for configuring a typical
VG-400R in the LAN environment.

4.1 LAN Interface Configuration

Run Web Browser such as Netscape or Internet Explorer.

Set

the address field to 192.168.0.1 then hit the enter key.
VG-400R will respond with the following page.

Enter eitg in “User Name” field and 123 in “Password” field.
Then select “OK”. VG-400R will show the “Main Menu” as

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follows.

Click “NAT” for all the WAN/LAN related settings, and VG-400R
will display the following screen:

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Click “LAN” for LAN Configuration Menu

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Specify the LAN Port IP Address, and Subnet Mask.
About DHCP Server setting, you can specify the number of

DHCP clients, the range is ‘1’ to ‘253’ and ‘0’ will disable DHCP
Server.

Fill in the “Client start address” to specify the start IP address if
DHCP Server is enable.

Click “Save The Changes” to save all input information.

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Reboot the system if all the above settings are saved.

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5.ADVANCED FEATURES

This chapter shows you the advanced features of VG-400R and
helps you to configure your ITG step-by-step for LAN access
management.

5.1 Access to Advanced Features Menu

Use Browser to get into the “Main Menu”:

Click “NAT” for all the WAN/LAN related settings, and VG-400R
will display the following screen:

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Click “Advanced Features” for the Advance Features Menu,
and start the Advanced Features setting.

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5.2 DMZ Configuration

This option allows one computer on your LAN to be exposed to
all users on the Internet.

Get into “Advanced Features”
Click “DMZ” and prepare to key in all related information:

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Switch “DMZ” field to ‘on’.
Enter the destination device’s IP address in “NAT DMZ host”

field.
Click “OK” to store all above data.

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Reboot the system to make these changes effective.

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5.3 Virtual Servers Configuration

This option allows servers on your LAN to be accessible by
Internet users. The NAT router redirects the external port to the
internal port.

If a web server 192.168.0.20 (port number 80) is behind the
NAT router, and Internet user need to access this web server
via port 8080, then you should do the following steps:

Get into “Advanced Features”
Click “Virtual Servers” and prepare to key in all related

information:

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Enter 8080 in “External Port #” field.
Enter 192.168.0.20 in “Internal IP” field.
Enter 80 “Internal Port #” field.
Choose the TCP in “Protocol” field.
Tick the “Active” field to enable Virtual Server function.
Click “OK” to store all above data.

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Reboot the system to make these changes effective.

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5.4 Port Forwarding Configuration

This option also allows servers on your LAN to be accessible by
Internet users. The NAT router directly forwards the external
ports to the internal ports.

If a server 192.168.0.30 (port 1040 to port 1060 ) is behind a
NAT router, and could be accessed by Internet user via TCP
port 1040 to port 1060, then the following steps should be
taken:

Get into “Advanced Features”
Click “Port Forwarding” and prepare to key in all related

information:

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Enter 192.168.0.30 in “Internal IP” field.
Enter 1040 in “Port number from” field.
Enter 1060 in “Port number to” field.
Choose TCP in “Protocol” field.
Tick “enable” field to enable Port Forwarding function.
Click “OK” to store all above data.

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Reboot the system to make these changes effective.

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5.5 Special Applications Configuration

This option allows certain Internet applications, which use
non-standard TCP/UDP ports to pass through the NAT router.

If a PC 192.168.0.20 is behind the NAT router, it will use TCP
port 1400 to port 1404 as source port to access an Internet
server, and the Internet server will respond to the PC with UDP
packets of port number 1300 as destination port, then the
following steps should be taken:

Get into “Advanced Features”
Click “Special Applications” and prepare to key in all related

information:

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Enter 1300 in “In Port no. from” field.
Enter 1300 in “In Port no. to” field.
Choose UDP in “In Protocol” field.
Enter 1400 in “Out Port no. from” field.
Enter 1404 in “Out Port no. to” field.
Choose TCP in “Out Protocol” field.
Enter the description in “Description” field.
Tick the “Active” field to enable this special App. setup.
Click “OK” to store all above data.

41

Reboot the system to make these changes effective.

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5.6 Access Control Configuration

This option allows you separate hosts in LAN into groups and
define WAN access policy for each LAN group.

Each Workgroup has its own packet filter table, which defines
how to block the PC or LAN devices.

For example a PC 192.168.0.10 belongs to Workgroup 1, and
the number of Workgroup 1 is not allow to access any HTTP
server in the Internet, then the following steps should be taken:

Get into “Advanced Features”
Click “Access Control” for Access Control menu.

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Use Workgroup and Packet Filter Table settings to control the
user’s access authority.

44

5.6.1 Workgroup Access Configuration

The Workgroup option allows you to separates host in the LAN
into workgroups, each workgroup is associated with a unique
packet filter table.

Click “Workgroup” and prepare to define the workgroup.

45

Enter 1 in “Select a Workgroup number” field.
Enter Operation in “Description”
Choose ”add” and “IP” in “addr type” field
Enter 192.168.0.10 “Address” field.
Click “OK” to store all above data.

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5.6.2 Packet Filter Table Configuration

This option allows you to define packet filter policies for each.

Click “Packet Filter Table” and prepare to key in all related
information:

47

Enter 1 in “Select a Workgroup number” field.
Choose ”add” and “TCP” that you want to block.
Enter the starting block port number 80 in “Port range from”

field.
Enter the ending block port number 80 in “Port range to” field.
Click “OK” to store all above data.
A list for the packet filter setting result will be displayed.
Packet filter table 0 is the default filter table, if a PC is not

belong to any packet filter table, then the policy of packet filter
table 0 will be applied to this PC.

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5.7 Dynamic DNS Configuration

The Dynamic Domain Name Server allows Internet Users to
connect to your Virtual Servers using a URL rather an IP
address.

Get into “Advanced Features”
Click “Dynamic DNS” and prepare to key in all DDNS related

information:

49

Choose “ON” for enable DDNS in Dyn-DNS field.
Key in “Server Name”, “Host Name”, “User Name”, and “User

Password” provided by your Dynamic DNS service provider.
Click “OK” to store all the above information.

50

Click “Store” to store information in the Flash memory.

51

Reboot the VG-400R when all the above settings are stored
successfully.

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6.DIAL PLAN SET UP

This chapter shows you the basic concept and steps to help
you configure your ITG through the LAN port. It includes the
VG-400R voice port and Dial Plan.

6.1 Concepts

6.1.1 The Voice Port

There are two types of voice port, FXO (Foreign eXchange
Office) and FXS (Foreign eXchange Station). You should locate

them at the labels of the RJ-11 ports.

FXO port

The FXO port allows connecting to a device which is
associated with a phone number and which can generate a ring
signal; say 316, or 408-1234. So the only connection for FXO
port will be to your local PSTN Line or one of the analog
extension line associated with your PBX system.

When your FXO port
connects to a PSTN Line, the
VoIP call can be made to the
local number (408-1234). Or,
vise versa you may make a
VoIP call through the phone
number 408-1234.

The same is applied to a PBX system. You are required to know
which extension number will be assigned to the FXO port. Your
PBX users will need to know this number to make a VoIP call.

316

FXO

PSTN

-1234

408

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L

Hint

The FXO port cannot connect to a device such as
telephone or fax machine since they do not provide
any phone number / extension and cannot
generate any ring signal. If you connect those to the
FXO port, you may hear nothing once you pick up
the handset.

FXS port

The FXS port allows the connection to a device such as
telephone, fax machine, or trunk line of a PBX system (For
4-port and 8-port model only).

FXS

The FXS port is like your local
phone service provider that
can generate and provide ring
signal. It is easy to tell if you
have connected a device to
the FXS port and you may hear
the dial tone provided by the
FXS port once the handset is
off-hook.

316

203



Warning

The FXS port is with voltage and current. DO NOT
connect the port to any PBX extension line or
PSTN line. This may result in the FXS port or your
PBX extension port malfunction.

6.1.2 The Dial Plan

Before you start setting up the dial plan for the VG-400R, it is
required to know the following basic concept associated with
the VG-400R.

 Phone number
 Hunt Group ID
 Destination ID

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 Destination

1) Phone Number
The “Phone number” associated with the VG-400R is a set of

digits. You may look at that as an area code associated with
your phone number. This number will only map to one Hunt
Group in this example. You may reference to Section 7 for
more details regarding configuration and Dial Plan
examples.

Number



Hunt Group

One To One

‘408’



‘10’

2) Hunt Group ID
The “Hunt Group ID” here is an interpreter between phone

number and Destination ID. The ITG phone table will be
based on the number you dial to find the related hunt group.
So, different numbers may map to the same hunt group. A
Hunt group consists of at least one Destination ID. It means
that when a call is placed the first available Line Destination
ID will be connected.

Hunt Group



Destination ID

One To One

‘10’



‘10’

L

Hint

In this guide, we will only set up one Hunt Group to
one Destination.

This will be convenient for you to trace the
relations.

3) Destination ID and Destination

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The “Destination ID” here is an interpreter between Hunt
Group and physical Destination. Hunt Groups may map to
the same destination ID.

The destination is either a local physical port or a remote IP
address that ITG should make a call to. Each Destination ID
maps to a physical destination. There are two types of
physical destination.

 A physical port on the ITG, i.e. the FXO/FXS port
 A H.323 VoIP gateway with a fixed IP address or a host

name.

Destination ID



Destination

One To One

‘1’



‘0’

‘10’



‘mary01.dyndns.org’

L

Hint

In this guide, we will use a dial plan table as below for
illustration purpose.

Number Hunt Group Dest. ID Destination
201 1 1 0
408 10 10 mary01.dyndns.org

‘201’ is a default number, ‘408’ is a new number we
will add onto the table.

6.2 Web Browser Configuration

Use Browser to get into the “Main Menu” as follows, the default
IP address of VG-400R is 192.168.0.1.

56

Click “VOIP” for all the telephony related settings, and
VG-400R will display as follows:

57

You are advised to set up your Dial Plan associated with the
VG-400R first before dialing any number and making a VoIP
phone call. Click ”Dial Plan”, it will display as follows:

58

Click “Phone/Hunt Group/Destination Settings” and prepare to
enter phone numbers, and VG-400R prompts the following:

59

Choose “Add”, “Telephone”, and “Select”, and VG-400R will
display the following screen:

60

Fill in the information associated with “Telephone Number”,
“Hunt Group ID”, “Min. Digits”, “Max Digits”, and “Strip Length”.
Make sure the above data is correct then click “Complete”.

Telephone Number – A set of digits. You may look at that as an
area code associated with the remote Gateway.

Hunt Group ID – An interpreter between Telephone Number
and Destination ID.

Min. Digits – The minimum number of digits need to dial for
remote Gateway, usually is the number of digits of Telephone
number above.

Max. Digits –The maximum number of digits need to dial for
remote Gateway. The difference of “Max. Digits” and “Min.
Digits” is the total phone numbers that you can assign to the
remote Gateway.

61

Strip Length – The number of digits needed to be strip off from
the beginning of the dialing digits.

Append prefix – The digits needed to be appended in front of
the dialing digits after it is stripped for the strip length.

The newly added telephone number will be displayed for
confirmation as follows:

Choose “Add” and “Hunt Group” then click “Select”, and
prepare to add Hunt Group ID. The VG-400R will show the
following:

62

Enter the information related to “Hunt Group ID” and
“Destination ID”, then click “Complete”. The newly added Hunt
Group ID and Destination ID will be displayed for confirmation
as follows.

63

Hunt Group ID – An interpreter between a Hunt Group and a
Destination.

Destination ID – The destination is either a physical port or a
remote IP address that VG-400R should make a call to. Each
Destination ID maps to a physical destination. There are two
types of physical destination.

 A physical port on the ITG, i.e. the FXO/FXS port
 A H.323 VoIP gateway with a fixed IP address or a host

name.

64

Now choose “Add” and “Remote_Destination_IP” for setting up
the Destination IP address. Click “Select”, and the VG-400R
prompts as follows:

65

The information associated with “Destination ID” and “IP
Address” of the remote Gateway should be filled in. Click
“Complete”. The newly added remote IP address will be
displayed for confirmation as follows:

66

Now you may test the phone connected to the remote Gateway
(211.20.86.4) with phone number “88635xxx” from your local
phone.

67

7.CONFIGURATION EXAMPLES

(USE CONSOLE OR TELNET COMMANDS)

7.1 The Default Dial-plans

Before any configuration set up, your VG-400R should have
the following basic default information.
Network:
IP : 192.168.0.1
Mask: : 255.255.255.0
Gateway : 0.0.0.0

Dial Plan:

No. Hunt

Group

Dest.
ID

Dest.

201 1 1 0 (local port #1)
202 2 2 1 (local port #2)
203 3 3 2
204 4 4 3
20X X X (X-1)

(X is from 1 to 8, and it varies depending on your VG-400R)

FXS

Suppose two telephones are
connected to two of your
VG-400R FXS ports, say port
1 and port 2 respectively, you
just pick up phone 1 and dial
‘202’ directly, phone 2 should
ring.

202

201

 202  VG-400R 
local port #2 

)))

68

L

Hint

You may also check the LED indicators on the
VG-400R. When it rings, the related LED should
flash. After you pick up the handset, it should
remain on and off when the phone is on hook.

Now let’s test your ITG that is equipped with FXO interface.
Assume you have one extension line associated with your
PBX system, say, 316 as the designated extension number,
we connect this line to VG-400R port 1 (FXO port), then
connect a telephone phone set to VG-400R port 3 for
example.

100

316

203

FXS FXO

Pick up your extension handset, for example, 100 and dial
‘316’. After two rings, you should hear a dial tone. Now dial
‘203’ the telephone connected to the VG-400R FXS port
should ring.

L

Hint

If you do not hear the dial tone, please check the
line impedance of your PBX. You should find a
Guide for setting the appropriate line impedance in
your package if your VG-400R is equipped with
FXO port. Please set it up accordingly to adjust
your FXO port.

69

Now let’s make a call to your extension. Pick up the handset
connected to the FXS port and dial ‘201’, you should hear a dial
tone (This means that ITG picks up the line connected to your
PBX). Then dial ‘100’, your extension handset should ring right
away.

L

Hint

This guide only uses the default values. Once you
are familiar with the dial plan set up, you may
design your own. You may set it up with only one
digit if you wish, say ‘1’, and ‘100’ rings.

VG-400R to VG-400R in the Static IP Address
Environment

The previous section shows you how to test your VG400R
without modifying any settings. This section will show you how
to connect two VGs together and make VoIP calls.

Assume that we have another VG, say VG B, with the default
settings as well. Now, let’s set up the IP address of VG B to,
e.g. ‘192.168.0.2

’ and connect it to VG A with the following

three steps.
Step 1.

VG B:

Console>net set ip 192.168.0.2 <enter> and restart VG

B

Step2.

Connect VG A and VG B to the same Ethernet switch or hub.

Step3.

VG A:

Console>ping 192.168.0.2 <enter> ; ping VG B

Ping (192.168.0.2) 56 data byte

192.168.0.2 is alive

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VG B:

Console>ping 192.168.0.1 <enter> ; ping VG A

Ping (192.168.0.1) 56 data byte

192.168.0.1 is alive

After these three steps, both VGs should find each other on the
same network.

Now let’s set up the remote H.323 gateway for this two VGs.

VG A:

Console>atpm req <enter>
Console>atpm aadd 02 2 5 10 2 <enter>
Console>atpm hadd 10 2 10 <enter>
Console>atpm dadd 10 h323 192.168.0.2 <enter>
Console>atpm done <enter>
Console>atpm store <enter>

VG B:

Console>atpm req <enter>
Console>atpm aadd 01 2 5 10 2 <enter>
Console>atpm hadd 10 2 10 <enter>
Console>atpm dadd 10 h323 192.168.0.1 <enter>
Console>atpm done <enter>
Console>atpm store <enter>

The dial plan associated with these two VGs should have the
following new record after the above commands.

VG A:

No. Hunt Group Dest. ID Dest.
02 10 10 192.168.0.2

VG B:

No. Hunt Group Dest. ID Dest.
01 10 10 192.168.0.1

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Now, once VG A gets a dialed number “02” it will direct the call
to VG B. The same is true for VG B. The dialed number ‘01’ will
be mapped to VG A accordingly.

203 203

V

G B(02

)

V

G A (01)

Assume both VGs have a FXS port corresponding to port#3
each with a phone set connected to it.

ITG A:
Pick up handset and dial “02203”, where ‘02’ points to VG B

and ‘203’ for port 3 of VG B. The phone attached to VG B
should ring.

ITG B:
Pick up the handset and dial “01203”, where ‘01’ points to VG A

and ‘203’ for port 3 of VG A. The phone attached to VG A
should ring.

L

Hint

In this example, we assign each VG with an unique
number. You may treat that number as an area
code. Each VG represents a different area.

VG A is with area code 01 and VG B is 02. So If you
have more, you may assign to other VGs with, 03,
04, etc.

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L

Hint

If you can not hear the ring signal, please do make
sure of the following:

1) Both VGs can ping each other

2) Phone sets are connected to the correct ports.
In this example, it should be the FXS port. Also
the phone number will be “20X” where X
corresponds to the location of the port.

3) Make sure you’ve stripped the number as
specified in the command “atpm aadd”
correctly.

4) The LED associate with the phone line should
turn on(pick up the phone) or flash(ringing).

We may continue to use the configuration mentioned in Section

7.1 for PBX connections.

203

201

203

316

100

V

G B

V

G A

VG A:

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The user at ext. 100 wants to make a call to VG B, 203. What
we need to do is to pick up the handset with extension ‘100’
and dial ‘316’. After you hear the dial tone again, dial ’02-203’.
Then, the phone attached to VG B should ring.

VG B:

If users at VG B want to make a call to ext 100 through VG A,
one should dial, ’01-201’ where the PBX line is connected to
port 1. After hearing the dial tone, just dial the extension
number ‘100’.

L

Hint

Imagine how we use the PBX with associated
extension handsets. We pick up the handset and
dial any extension number directly to your
colleagues, and dial ‘0’ or ‘9’ to make a call to PSTN
network.

The same is with VG B, after you dial “01-201”, you
can do the same thing because “01201” connects
you to the extension handset 316. In this scenario
the handset with extension 203 connected to VG B
may also be looked as an extension of the PBX.

After all of the above, your VG should perform normally. Let’s
do the following two things:

A) Modify the IP address, Mask, and Gateway to your network

so that the VG may connect to the Internet. Do the same
thing to your second, and third VG so they may connect to
the Internet as well.

B) Check the bandwidth, and the router. Normally, if you can

ping each other, it means that they should talk to each other
via VoIP calls.

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

Warning

The average bandwidth for each channel is from
12kbps to 16kbps by default. In a heavy traffic
network, the available bandwidth between two
nodes may affect the voice quality.

7.2 VG to VG in the Dynamic IP Address
Environment

The previous section shows the steps regarding how to set up a
typical VG-to-VG connection in the static IP address
environment without modifying any settings. This section we
will show you how to connect two VGs in a dynamic IP address
environment via built-in PPPoE, DHCP, and DDNS clients.

Assume there is another VG, say VG B, located at Site B with
default settings. First of all, it is required to apply for a DDNS
host name from http://www.dyndns.org

for VGs at Site A and
Site B. (For example, the names are mary01.dyndns.org for VG
at Site A, and mary02.dyndns.org for VG at Site B.)

mary01.dyndns.org is applied for VG at Site A,
mary02.dyndns.org is applied for VG at Site B.
Other parameters associated with this topology are:

VG at Site A has PPPoE, and DDNS clients enabled
VG at Site B has DHCP, and DDNS clients enabled.

The network topology can be shown as follows:

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DHCP

PPPoE

#203

Area code

408

Area code

886

886

408

B

A

#201

Cable Modem

ADSL Modem

Mary02.dyndns.org

210.20.96.2

Mary01.dyndns.org

61.59.73.172

DDNS

Internet

VG configuration (ADSL PPPoE connection) at Site A:

PPPoE section:

Please fill in
username
and
password
obtained
from your
ISP

.

net set pppoe on <enter>
net set pppoe user name password <enter>

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DDNS client section:

net set dyndns on <enter>
set dyndns add dyndns mary01 my_nam e my_password <enter>
config activate <enter>
config store <enter>
net reset <enter>

Dial plan settings:

Create
an
address
entry for
VG at
Site B

atpm req <enter>
atpm aadd 408 3 8 10 3 <enter>
atpm hadd 10 2 10 <enter>
atpm dadd 10 dns mary02.dyndns.org <enter>
atpm done <enter>
atpm store <enter>

VG configuration (cable connection) at Site B:

DHCP section:

net set dhcp client on <enter>

net store <enter>
net reset <enter>

Then press ”y” to reboot the machine and activate this
setting.

.

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DNS server section:

DNS server settings
will not take effect
till the system
reboot is done.

net set wan dns 168.95.1.1 <enter>
net store <enter>
confi

g

store <enter>

DDNS client section

Please fill in username and
password obtained from

your ISP

.

net set dyndns on <enter>
set dyndns add dyndns mary02 username password

<enter>

config activate <enter>
config store <enter>

Dial plan section:

Create an
address
entry for ITG
at Site A

atpm req <enter>
atpm aadd 886 3 8 10 3 <enter>
atpm hadd 10 2 10 <enter>
atpm dadd 10 dns mary01.dyndns.org <enter>
atpm done <enter>
at

p

m store <enter>

After these modifications, users at Site A are able to dial “408 +
telephone number” to call users at Site B and conduct VoIP
voice conversation. Users at Site B are able to perform VoIP
voice communication by dialing number “886 + telephone
number” toward users at Site A. (Please note that there is a
Max. digits (8) limitation of dial string in this case. Users may
modify this parameter to meet different needs.)



Warning

If calls can not be made, please check:

a. Connectivity between VGs is valid. (This may

be checked via ping command in VG.)

b. DDNS name is correctly updated.

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7.3 PBX related issues

There are some issues related to PBX system. There are: 1)
CP (Call Progress) Tone detection, and 2) Call Security.

7.3.1 CP Tone Detection

You may encounter a problem when your call goes to PBX via
a VoIP connection, such as the caller may already hang up
the phone but the PBX port is still active.

The cause of this problem may be due to the CP tone
mismatch. The VG cannot understand the Tone from PBX. So
it still considers the line is on and never hangs up.

Once this has happened, you may find a technical document
provided by your vendor that contains the corresponding
information and guides you to fix this problem.

7.3.2 Call Security

The IVG is a standard H.323 VoIP gateway that will allow any
standard H.323 device to make a VoIP connection to it. That
means no matter where you are, once you have a H.323
device such as another VG, or a software package like
Microsoft NetMeeting, you may make a VoIP call to this VG
any time once it connects to the Internet.

If the VG is only equipped with FXS port, then it should be very
little concerns regarding the unauthorized use of the VoIP link.
But once it is connected with either a PBX or PSTN line, you
may be opening a phone line for any Internet users to make
an unauthorized phone call. For example, one may make an
International call from Hong Kong to Europe through your VG
located in Singapore.

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To prevent this from happening, you are advised to do the
following:

1) Restrict the right to use associated w ith the line. For
example, if the line goes to an extension number
associated with a PBX, ask the PBX manager to restrict
this line from dialing to certain numbers. Or ask the PSTN
service provider to limit the line usage as well.

2) Re-check the dial table. Check the dial plan table that
only allows certain numbers may make calls. That is,
remove the unnecessary numbers and restrict the
maximum digit or prefix the allowed number inside VG so
the unauthorized phone call may not be made through the
VG.

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