DSG Technology IP1200C Operation Manual

07I12CM.ENC

Voice Communication for Free

High Performance Embedded VoIP Gateway

Copyright Notice

Copyright (c) 2007 DSG Technology Inc. All rights reserved.

This guide, the software and the hardware described herein are copyrighted with all rights reserved. This document may not,
in whole or in part be copied, photocopied, reproduced, translated into any language, reduced to any electronic medium or
machine-readable form with out prior written consent of DSG Technology.

All examples with names, organizations or entities that appear in this manual are fictitious and do not refer to or portray, in
name or substance, any actual names, organizations or entities. Any resemblance to any real person, organization or entity, is
purely coincidental.

Every effort has been made to ensure the accuracy of this guide. However, DSG Technology makes no warranties with
respect to this documentation and disclaims any implied warranties of merchantability and fitness for a particular purpose.
DSG Technology shall not be liable for any errors or for incidental or consequential damages in connection with the
furnishing, performance, use of this manual or the examples herein. The information in this document is subject to change
without notice.

Trademarks

DSG, the DSG logo, IP1200C, IP770, IP870, S200, S300, IP1200, IPStar, InterStar, InterPhone and IP1000 are registered
trademarks of DSG Technology, Inc.
Windows is a registered trademark of Microsoft Corporation.
Other product names mentioned in this manual maybe trademarks or registered trademarks of their respective companies
and are hereby acknowledged.

Table of Contents 1

TABLE OF CONTENTS

CHAPTER 1 Understanding Your IP1200C............................................................................................. 3

Overview .................................................................................................................................................................4

All-in-one Design ...................................................................................................................................................4

Device-to-Phone Operation Mode........................................................................................................................4

Terminology............................................................................................................................................................4

Conventions ............................................................................................................................................................5

CHAPTER 2 Installing Your IP1200C ......................................................................................................7

Hardware Installation............................................................................................................................................8

Connecting the DC Power Supply...........................................................................................................8

Connecting the Line Ports.........................................................................................................................8

Connecting to the TCP/IP Network........................................................................................................8

Ports Definitions.....................................................................................................................................................9

Buttons Definitions.................................................................................................................................................9

LED Indicators........................................................................................................................................................9

CHAPTER 3 Configuring Your IP1200C........................................... .... .... .... .... ... ........ .... ... .... .... .... ... .... 11

Preparing to Configure IP1200C.........................................................................................................................12

Configuration Items.............................................................................................................................................12

TCP/IP Setup........................................................................................................................................................14

IP Address.................................................................................................................................................14

Gateway IP Address................................................................................................................................14

Subnet Mask .............................................................................................................................................14

DNS (Optional).........................................................................................................................................15

DHCP (Required for DHCP Environment)..........................................................................................15

Device-to-Phone Setup ........................................................................................................................................16

Device ID (Non-editable)........................................................................................................................16

Check Account Balance...........................................................................................................................16

Long-distance Code.................................................................................................................................16

International Code...................................................................................................................................17

Country Code ...........................................................................................................................................17

Security Setup .......................................................................................................................................................17

Password for FXO....................................................................................................................................17

Password for FXS.....................................................................................................................................17

Telnet Password.......................................................................................................................................18

Disable Telnet Function...........................................................................................................................18

Port Configuration ...............................................................................................................................................18

Voice Quality and Hang-up Settings .................................................................................................................19

Play Volume..............................................................................................................................................19

Record Volume.........................................................................................................................................19

Echo Cancellation.....................................................................................................................................20

Busy Tone Setup.......................................................................................................................................20

Advanced Options...................................................................................................................................21

Upgrade Software On-line ..................................................................................................................................22

Exit Configuration................................................................................................................................................22

Restoring to Default Settings ..............................................................................................................................22

CHAPTER 4 Making Internet Phone Calls.............................................................................................25

Make Sure You Are Online .................................................................................................................................26

Make Device-to-Phone Calls...............................................................................................................................26

2 Table of Contents

Scenario 1: FXS-to-Phone........................................................................................................................ 26

Scenario 2: FXO(with PBX)-to-Phone.................................................................................................... 26

CHAPTER 5 IP1200C Monitor Utility......................................................................................................27

Install IP1200C Monitor Utility .......................................................................................................................... 28

Web-based IP1200C Management System........................................................................................................33

Appendix A: Troubleshooting............................................................................................................................41

Appendix B: Specifications................................................................................................................................ 43

Appendix C: Quick Reference........................................................................................................................... 44

Chapter 1 Understanding Your IP1200C 3

CHAPTER 1

Understanding Your IP1200C

Congratulations! You have selected the advanced Voice over IP Telephony product.

IP1200C Gateway is an innovative Voice over Internet Protocol (VoIP) solution for
enterprises or call booth operators. IP1200C is a new generation VoIP gateway carries
voice traffic over TCP/IP networks. By deploying IP1200C, you can consolidate voice
and data traffic for more efficient use of bandwidth and reduce your international and
long-distance phone call charges.

IP1200C is an embedded gateway combining hardware, software and operating system
for plug-and-play simplicity. It provides a seamless interface between TCP/IP networks
and the Public Switched Telephone Network (PSTN). Users can place Internet calls to any
regular phone numbers in the world. IP1200C is an outstanding gateway bringing you
the most cost-effective communications.

4 Chapter 1 Understanding Your IP1200C

Overview

In the past, real-time voice communication can only be done on the PSTN. With the circuit switched technology,
every call takes up a dedicated bandwidth. End-to-end calls are established on the basis of a sequence of digits,
and the PSTN dedicates a physical path between callers. The telephone equipment establishes the call path at the
beginning of a call and occupies the dedicated path till the end of the call.

Compared to the PSTN, an Internet Protocol (IP) network has a packet-switched architecture. Data is transmitted
in packets, and the path from end to end can vary within an established session. The data packets also contain the
destination IP address information, with which packets are routed. As networking environments change, routing
devices are updated with dynamic protocols.

IP1200C is a high performance embedded VoIP Gateway that transmits voice over packet switched networks and
route it to circuit switched networks.

All-in-one Design

IP1200C contains its own processor, memory, and network interface; it works independently and intelligently!
Simply connect it to your IP network and PSTN or phone sets, and then you are ready to talk via the Internet. All
of the communication costs will be eliminated except the local networks connection charge. IP1200C is the most
convenient embedded VoIP gateway for users to make Internet phone calls without the hassle of changing the
existing infrastructure.

Device-to-Phone Operation Mode

IP1200C is a reliable bridge between two different locations. The FXO/FXS telephone interface provides the
system with an ultra flexible PSTN connection. Supported by DSG Global Internet Telephony Network, users can
make phone calls to any regular phone numbers in the world.

Figure 1: Device-to-Phone Mode Diagram

Terminology

In this manual, there are some terminologies you might not be acquainted with. The following is a list of
commonly used voice technology terms.

Terms Definitions

C.O. Line Central Office Line

DTMF

Dual Tone Multi Frequenc

y

. Dialing signals transmitted as two simultaneous voice

band tones.

IP Internet Protocol

LAN Local Area Network

FXO Foreign Exchange Office. A FXO interface connects to PSTN.

FXS

Foreign Exchange Station. A FXS interface connects to the standard telephone, fax
machine, modem and conventional PBX.

ITSP Internet Telephony Service Provider

Chapter 1 Understanding Your IP1200C 5

PBX Private Branch Exchange. Privately switching equipment in an office.

POTS

Plain Old Telephone Service. Telephone services supplying standard single lines
and access to the public switching telephone network.

PSTN Public Switched Telephone Network

VAD Voice Activity Detection

VoIP

Voice over Internet Protocol. A technology of transmitting voice as packets over
TCP/IP networks.

VPN Virtual Private Network

TCP/IP Transmission Control Protocol/Internet Protocol

Conventions

This manual uses the following conventions to convey instructions and information.

Italic boldface Prompts displayed on the screen.
< > Information or command you have to input.
bold letters Notes, cautions and helpful information.
xxx Examples of alphabet or numeric.

Chapter 2 Installing Your IP1200C 7

CHAPTER 2

Installing Your IP1200C

Connecting IP1200C is easier than connecting a laptop PC.

In your IP1200C package, you will find:

z An IP1200C main unit
z A DC 5V/12V power adapter and power cord
z A RJ-45 network cable
z An operation manual
z Your warranty card

8 Chapter 2 Installing Your IP1200C

Hardware Installation

As shown in the following diagram, connecting an IP1200C is very quick and simple.

Figure 2: IP1200C Connecting Diagram

Connecting the DC Power Supply

Plug the power adapter into a power outlet. Plug the DC adapter connector into IP1200C power socket at the back
labeled PWR. The LED light labeled PWR will light up and keep blinking.

Note: Please use ESD-preventive tools and maintain safety with electricity when you plug the power cord.

Connecting the Line Ports

For IP1200C FXO Model

IP1200C provides FXO interface. When power on, the LED color is red. The FXO module is designed for
connecting to C.O. lines from your telephone company (PSTN) or a PBX extension-side. Plug a telephone line
connected to PSTN or a PBX’s extension-side into a FXO RJ11 port.

If you connect the IP1200C FXO ports to the PBX’s extension side, each port will obtain an extension number, just
like the other extensions in your office.

For IP1200C FXS Model

IP1200C provides FXS interface. When power on, the LED color is green. The FXS module is designed for
connecting to analog telephone sets or a PBX trunk-side. Plug a telephone line connected to an analog phone or a
PBX’s trunk-side into a FXS RJ11 port

If you connect the IP1200C FXS ports to the PBX’s trunk side, each port will obtain an access code or can be
viewed from phone sets’ line indicators.

Note: Misplacing FXO equipment into FXS interface and vice versa may damage IP1200C. Be sure that the

FXO/FXS interfaces are connected to the adequate telephone lines and equipment.

Connecting to the TCP/IP Network

Plug a network cable connected to your Ethernet into RJ45 jack labeled ETHERNET.

It is recommended that you provide a permanent Internet connection for IP1200C, such as connections from
Leased Line, xDSL (not include PPPoE) or Cable Modem, and assign a static IP address (real IP address if
applicable) to IP1200C.

Chapter 2 Installing Your IP1200C 9

If your network is behind NAT or firewall, you can assign a pseudo IP address to your IP1200C. IP1200C has
preset UDP and TCP ports allowing communication to get through NATs and firewalls. In general, you do not
need to open ports on your network gateway or router.

If your network is in the DHCP environment, you can enable IP1200C DHCP function to obtain an IP address
automatically.

Note: When you encounter one-way voice cannot be heard problem, the reason might be that the specific

communication ports for IP1200C been blocked. Check if the specific ports on your router are opened to
IP1200C. For 4-port IP1200C, open TCP 1100 port and UDP 1101-1104 ports. For 8-port IP1200C, open TCP
1100 port and UDP 1101-1108 ports.

Ports Definitions

Ports Definition

CONSOLE

A RS232 communication port provides connection to a terminal directl

y

using a crossover cable. Baud rate: 9600 bps.

ETHERNET An Ethernet 10 BaseT RJ45 port provides connection to LAN

L1 to L8

Line 1 to Line 8. Analog RJ11 jacks support FXO or FXS interfaces, each
4-wire for 2 lines. To identify port types, power on the device and the
LED will be lit up. Red LED indicates FXO type. Green LED indicates
FXS type. You can also press S1 button to view the colors at any time.

Buttons Definitions

Buttons Definition

DEFAULT button

Reset the IP1200C system. Press and hold the DEFAULT button; switch
off the power and turn on; after the MODE LED starts blinking, release
the DEFAULT button. The setting items of IP Address, Gateway IP,
Subnet Mask, DNS and Telnet Password will be reset to the default
value.

SECURITY button

Press the SECURITY button to disable the Telnet function so as to
prevent the device been connected from the Internet or Intranet.

S1 button

Press the S1 button to view the port types of L1 to L8. Red color
represents FXO; Green color represents FXS.

S2 button Reserved for the future function.

LED Indicators

LED Color Activity Definition

PWR Red On Power is supplied.

MODE Red Blinking

The system is in Device-to-Phone Mode
and registered to DSG ITSP network.

LINK Red On

A connection is established to the hub or
switch on LAN.

L1 to L8 (FXO interface) No color Red

Calls are being transmitted or received on
the port.

L1 to L8 (FXS interface) No color Green

Calls are being transmitted or received on
the port.

Chapter 3 Configuring Your IP1200C 11

CHAPTER 3

Configuring Your IP1200C

With these easy steps, the IP1200C is ready to use in no time.

Before You Start

To use IP1200C as a VoIP gateway, you need to subscribe an Internet access line from
your local ISP. It could be xDSL, Cable Modem access or Leased Line. You will need the
following information to set up your IP1200C.

1) IP Address : _ _ _ . _ _ _ . _ _ _ . _ _ _

2) Gateway IP Address : _ _ _ . _ _ _ . _ _ _ . _ _ _

3) Subnet Mask : _ _ _ . _ _ _ . _ _ _ . _ _ _

12 Chapter 3 Configuring Your IP1200C

Preparing to Configure IP1200C

After you connect IP1200C to your LAN, you can enter the configuration mode by Telnet.

Step 1 Select a PC connected to the same subnet of IP1200C and run the Telnet program. Refer to IP1200C’s

default settings to change your PC’s IP settings if necessary.

Step 2 Connect to IP1200C using its default IP Address: 192.168.1.200
Step 3 Input the default Telnet Password: 0000
Step 4 The prompt will display the setting items of IP1200C. You can then start configuring your IP1200C.

Note: If you would like to Telnet IP1200C directly from a PC, you can use a crossover network cable connecting

one end to the ETHERNET port on IP1200C and the other end to the LAN port on your PC.

Note: You can also use a crossover cable connecting one end to the CONSOLE port on IP1200C and the other end

to your PC’s COM port. After connecting the cable, from Windows Start menu, select Program>
Accessories> Communications> HyperTerminal. Run HyperTerminal program and set the baud rate at 9600
bps. Switch off the power of IP1200C and turn it on to establish the connection. You will be able to adjust the
settings of IP Address, Gateway IP, Subnet Mask, DHCP and DNS.

Note: If your computer’s OS is Windows98, after Telnet IP1200C, you can press ESC at any time to view the setting

items page by page.

Configuration Items

After you enter Telnet program, you will find the configuration items as below.

Items Functions Format Default settings

(0) Device ID

The ID Number of your
IP1200C. It is also the prefix of
per port’s ID which is Device ID
plus port number. Non-editable.

Device ID: 5-digit
Port ID: 6-digit
(Device ID + Port
Number)

xxxxx
Port 1: xxxxx1
Port 2: xxxxx2
etc.

(1) IP Address

A static IP address assigned to
IP1200C

xxx.xxx.xxx.xxx 192.168.1.200

(2) Gateway IP

The IP address of the gateway
on your LAN

xxx.xxx.xxx.xxx 192.168.1.254

(3) Subnet Mask The subnet of your IP1200C xxx.xxx.xxx.xxx 255.255.255.0
(4) DNS Your Domain Name Service xxx.xxx.xxx.xxx 168.95.1.1

(5) DHCP

Used when your network is in
DHCP environment.

0: Off 1:On Off

(6) Play Volume Adjust the playing volume level 1 to 9 5

(7) Record Volume

Adjust he recording volume
level

1 to 9 5

(8) Echo Cancellation

Adjust the echo cancellation
level. If it is set as 0, this
function is disabled.

0 to 2 2

(9) Long Distance Code Your long distance code ­(10) International Code Your international access code ­(11) Country Code Your country code -

(12) Password for FXO

Password for accessing FXO
ports. If empty, no password is
required.

Maximum 10 digits -

(13) Password for FXS

Password for accessing FXS
ports. If empty, no password is
required.

Maximum 10 digits -

(14) Telnet Password

Password of accessing IP1200C
via Telnet. To disable the Telnet
function, press the SECURITY
button.

Maximum 10
characters and/or
digits

0000 (four zero,
shown as ****)

(15) Port Configurations

To enable or disable ports. Used
when specific ports are broken

Port Status
1:Enable 0:Disable

All enable

Chapter 3 Configuring Your IP1200C 13

down.

(16) Busy Tone Setup

1. Busy tone cycles
hangup

2. Minimum busy tone
length

3. Maximum busy tone
length

4. Busy tone length
tolerance

1. After detecting set busy tone
cycles, connection will be
released.

2. Set the minimum length of a
busy tone.

3. Set the maximum length of a
busy tone.
Using the above 2 and 3 to set
the valid range of a busy tone.

4. The tolerance between two
valid busy tones.

2 to 9

100 to 1200 ms

100 to 1200 ms

20 to 400 ms

4 cycles

200 ms

600 ms

80 ms

(17)Advanced Options

1. Max. One-Wa

y

silence

to hangup

2. Max. Two-Way
silence to hangup

3. Max. dial tone to
hangup

4. Fixed Rx Gain (FXO)

5. Fixed Tx Gain (FXO)

6. Fixed Rx Gain (FXS)

7. Fixed Tx Gain (FXS)

8. VAD Level

9. DTMF Level

10. DTMF Length

1. When the silence of any side
exceeds this duration, calls will
be terminated.

2. When the silence of both
sides exceeds this duration, calls
will be terminated.

3. After off-hook but no dialing
action been made within this
duration, lines will be released.

4. Used when the receiver
cannot have good voice quality
from you. After adjusting your
IP1200C’s (7) Record Volume
but the voice is still no good,
raise the value.

5. Used when you cannot get
good voice quality from the
remote party. After adjusting
your IP1200C’s (6) Play Volume
but you still cannot get good
voice quality, raise the value.

6. Refer to the above 4.

7. Refer to the above 5.
NOTICE: The above 4-6 items
have severe impacts on echo
cancellation and voice quality.
DO NOT adjust the default
values if not necessary.

8. Voice activity detection level.
When voice is below this value,
it is deemed as silence.

9. When local PSTN network is
no good, raise this value to get a
better dialing quality.

10. When local PSTN network
is no good, raise this value to
get a better dialing quality.

10 to 720 min

10 to 300 sec

0 to 300 sec

-20 to 20

-20 to 20

-20 to 20

-20 to 20

0 to 8

1 to 5

0: 100 ms, 1: 200 ms,
2: 300 ms

30 min

30 sec

30 sec

1

0

-3

-3

3

2

<100 ms>

(18) Upgrade Software
On-Line

Download the latest software
version

- -

(19) Check Balance

View the credit of per port’s ID
account.

ID No. / Balance
xxxx (Expired, or
Wrong Account)

-

(20) Save and Exit
(21) Exit (Without save)