DSG Technology IP1200 User manual

03IP12ME.D
Voice communication for Free
High Performance Embedded VoIP Gateway

Copyright Notice
Copyright © 1998-2003 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, 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
IP1200 Operation Manual 1
TABLE OF CONTENTS
Chapter 1 Understanding Your IP1200
Overview…………………………………………………………………………………..4
All-in-one Design…………………………………………………………………………4
Comprehensive Operation Modes………………………………………………….......4
VPN Mode……………………………………………………...…………………….4
ITSP Mode………………………………………………………………………….4
Terminology…………………………………………………………….………………5
Conventions……………………………………………………………………………….5
Chapter 2 Installing Your IP1200
Hardware Installation…………………………………………………………………....8
Connecting the DC Power Supply………………………………………………....8
Connecting the Line Ports…………………………………………………………8
Connecting to TCP/IP Network………………………………………………..8
Ports Definitions…………………………………………………………………………..9
Buttons Definitions……………………………………………………………………….9
LED Indicators………………………………………………………………………….9
Chapter 3 Configuring Your IP1200
Preparing to Configure IP1200…………………………………………………………12
Configuration Items………………………………………………………………….12
TCP/IP Setup……………………….………………………………………………….14
IP Address………………………………………………………………………….14
Gateway IP Address……………………………………………………………….15
Subnet Mask………………………………………………………………………...15
DNS………………………………………………………………….…………...15
DHCP……………………………………………………………….…………...16
ITSP Setup……………………………..….……………………………….…………….16
Device ID…………………………………………………………………………...16
ITSP Account…..…………………………….……………………………………..16
Check Account Balance…………………………………………………………...17
Long-distance Code……………….………….…………………………………..17
International Code…………………………………….…………………………...17
Country Code……………………………………….……………………………...18
Running Mode…………………………………….……………………………...18
Dial Plan Setup……………..……………………………………………………...18
Pattern 1: FXO(with PBX)-FXO(with PBX)……………………………………....20
Pattern 2: Set Hot Keys………………………………………………………….....20
Pattern 3: FXO-FXO………………………….……………………………………..20
Pattern 4: FXS-FXS……………………………….………………………………....21
Pattern 5: FXO(with PBX)-InterStar……………………………………………....21
Security Setup……………………..……………………………………..………...21
Password for FXO………………………………………………………………...22
Password for FXS………………………………………………………………...22
Telnet Password………………………………………………………………...22
Disable Telnet Function………………………………………………………...23
Authorized Devices Setup………………………………………………………...23
Connecting Setup……………………..…………………………………………....23
Rings to Answer………………………………………………………………...23
Connected Type……….…………………………………………………………...24

Table of Contents
2 IP1200 Operation Manual
Alternative Device IP……………………………………………………………...24
Port Configuration………………………………………………………………...25
Voice Quality & Hang-up Settings………………………..……………………...25
Play Volume………………………………………………………………………..25
Record Volume………………………………………………………………….....26
Echo Cancellation………………………………………………………………......26
Busy Tone Setup……………………………………………………………......26
Advanced Options…………………………………………………………….....27
Upgrade Software On-line………………………………………………………….....28
Exit Configuration………………………………………………….…………………....29
Restoring to Default Settings…………………………………………………………...29
Chapter 4 Making Internet Phone Calls
Make Sure You Are Online…………………………………………………………...32
In VPN Mode……………………...…………………………………………………...32
Scenario 1: FXO (with PBX)-FXO (with PBX).………..….……………………...32
Scenario 2: FXO-FXO……………..………………..………………………..……...33
Scenario 3: FXS-FXS…..……………………..……………………………………...33
Scenario 4: FXS-FXS (with PBX)……………………………………………..…...33
Scenario 5: FXO (with PBX)-DSG VoIP Devices………………………………...34
In ITSP Mode………………………………….………………………………………...34
Scenario 1-4: Local IP1200-Remote IP1200…………………..…………………...34
Scenario 5: FXO (with PBX)-DSG VoIP Devices…………………………….…..34
Scenario 6: FXO (with PBX)-Regular Phone Users……………………………...34
Scenario 7: DSG VoIP Devices-Local IP1200…………..………………………..34
In DHCP Environment……………..…………………………………………………...35
Appendix A: Troubleshooting the IP1200
Appendix B: Specifications
Appendix C: Quick Installation Guide

Chapter 1 Understanding Your IP1200
IP1200 Operation Manual 3
CHAPTER 1
Understanding Your IP1200
Congratulations! You have selected the advanced Voice over IP Telephony product.
IP1200 Gateway is an innovative and standards-compliant Voice over Internet Protocol
(VoIP) solution for enterprises. IP1200 is a new generation VoIP gateway carries voice
traffic over TCP/IP networks. By deploying IP1200, you can consolidate voice and data
traffic for more efficient use of bandwidth, reduce international and long-distance phone
call charges, connect to remote premises easily, and gain access regardless of where you
are.
IP1200 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 a
remote IP1200 and via it to the remote PSTN. Moreover users can also place Internet calls
directly to PSTN networks. IP1200 is an outstanding gateway delivering the new way of
communications.

Chapter 1 Understanding Your IP1200
4 IP1200 Operation Manual
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.
IP1200 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
IP1200 contains its own processor, memory, and network interface; it works independently and intelligently!
Simply connect it to your IP network and PSTN, and then you are ready to talk via the Internet and Intranet. All of
the communication costs will be eliminated except the local networks connection charge. IP1200 is the most
convenient embedded VoIP gateway for users to make Internet phone calls without the hassle of changing the
existing infrastructure.
Comprehensive Operation Modes
IP1200 is a reliable bridge between two different locations. The FXO/FXS telephone interface provides the system
with an ultra flexible PSTN connection. Moreover, IP1200 is supported by DSG Global Internet Telephony
Network; users can also talk to any regular phone users anywhere.
VPN Mode
IP1200 enables decentralized enterprises to make phone calls to branches easily and efficiently. IP1200 constructs a
point-to-point communication structure in a Private Network (PN) or a Virtual Private Network (VPN) and
functions perfectly in any TCP/IP environment. With a specially designed user-definable dial plan function,
IP1200 provides a flexible on-site and remote access to connect to branches and PSTN.
Figure 1: VPN Mode Diagram
ITSP Mode
IP1200 allows you to talk to anyone anywhere with ultra low rates. Supported by DSG Global Internet Telephony
Network, IP1200 provides an immediate connection to worldwide regular phone users as well as any users of
DSG VoIP devices, InterPhone, IPStar and InterStar.

Chapter 1 Understanding Your IP1200
IP1200 Operation Manual 5
Figure 2: ITSP Mode Diagram
Note: IPStar is a Modem-based Internet Phone Device. InterStar is an Ethernet-based Internet Phone Device.
InterPhone is a full-featured Ethernet Key Phone.
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
. Dialin
g
si
g
nals 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
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 IP1200
IP1200 Operation Manual 7
CHAPTER 2
Installing Your IP1200
Connecting IP1200 is easier than connecting a laptop PC.
In your IP1200 package, you will find:
zAn IP1200 main unit
zA DC 5V/12V power adapter and power cord
zA RJ-45 network cable
zAn operation manual
zYour warranty card

Chapter 2 Installing Your IP1200
8 IP1200 Operation Manual
Hardware Installation
As shown in the following diagram, connecting an IP1200 is very quick and simple.
Figure 3: IP1200 Connecting Diagram
Connecting the DC Power Supply
Plug the power adapter into a power outlet. Plug the DC adapter connector into IP1200 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 IP1200 FXO Model
IP1200 provides FXO interface. When power on, the LED color is red. The FXO module is designed for connecting
to CO lines provided by 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 IP1200 FXO ports to the PBX’s extension side, each port will obtain an extension number, just
like the other extensions in your office.
For IP1200 FXS Model
IP1200 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 IP1200 FXS ports to the PBX’s trunk side, each port will obtain an access code or a line indicator
can be viewed from phone sets.
Connecting to the TCP/IP Network
Plug a network cable connected to your Ethernet into RJ45 jack labeled ETHERNET.
Notice that it is recommended that you should provide a permanent Internet connection for IP1200, such as from
Leased Line, xDSL (not include PPPoE) or Cable Modem, and assign a static IP address (real IP address if
applicable) to IP1200.
If your LAN is in the DHCP network environment, you can enable IP1200 DHCP function.
If you assign pseudo IP address to IP1200, either static or dynamic IP addresses, you need to open the TCP and
UDP ports of the IP address assigned to IP1200 and the network equipment connected to WAN.
For 4-port IP1200, open TCP 1100 port and UDP 1101-1104 ports.