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WebSTAR DPX2203C and EPX2203C VoIP Cable Modem Users Guide





WebSTAR DPX2203C and EPX2203C
VoIP Cable Modem Users Guide






1


WebSTAR DPX2203C and EPX2203C VoIP
Cable Modem Users Guide

Introduction
Welcome to the exciting world of high-speed Internet and high quality digital telephone service. Your new
WebSTAR DPX2203C or EPX2203C Voice-over-Internet Protocol (VoIP) Cable Modem is a modem that
meets industry standards for high-speed data connectivity along with reliable digital telephone service. With a
DPX2203C or EPX2203C, your Internet enjoyment, home and business communications, and personal
productivity will surely soar.
This guide provides procedures and recommendations for placing, installing, configuring, operating, and
troubleshooting your DPX2203C or EPX2203C cable modem for high-speed Internet or digital telephone service,
or both simultaneously, for your home or office. Refer to the appropriate section in this guide for the specific
information you need for your situation. Contact your service provider for more information about subscribing to
these services.
Benefits and Features
Your new DPX2203C or EPX2203C offers the following outstanding benefits and
features:
Features an embedded media terminal adapter (EMTA) supporting two-line
voice services
Provides a high-speed broadband Internet connection that energizes your
online experience, such as providing hassle-free downloading and sharing
files and photos with your family and friends
Includes 10/100BaseT Ethernet and USB ports to provide connectivity for
high-speed data services or to other Internet devices
Assures a broad range of interoperability with most service providers by
complying with Data Over Cable System Interface Specifications (DOCSIS
®
)
1.0, 1.1, and 2.0 standards along with PacketCable 1.0 specifications to
deliver high-end performance and reliability
Includes two RJ-11 telephony ports for connecting conventional telephones
or fax machines
Allows you to attach multiple devices in your home or office to the cable
modem for high-speed networking and sharing of files and folders without
first copying them onto a CD or diskette
Includes an internal Lithium-Ion cartridge-style battery for convenient backup
power
Features Plug and Play operation for easy set up and installation
Utilizes an attractive compact design that allows for vertical, horizontal, or
wall-mount placement
Allows automatic software upgrades by your service provider
WebSTAR DPX2203C and EPX2203C VoIP Cable Modem Users Guide
2

Notice for CATV Installers
CATV Installers Notice
If you are a CATV installer, read the information in the box below.


In This Guide

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In This Guide
IMPORTANT SAFETY INSTRUCTIONS ...................................................................................................................4
Whats In the Carton?.................................................................................................................................................8
Front Panel Description ..............................................................................................................................................9
Back Panel Description ............................................................................................................................................10
Where is the Best Location for My Cable Modem? ..................................................................................................11
What are the System Requirements for Internet Service? .......................................................................................11
How Do I Set Up My High-Speed Internet Access Account?...................................................................................12
How Do I Connect My Devices to Use the Internet? ................................................................................................13
How Do I Configure TCP/IP Protocol? .....................................................................................................................15
How Do I Install USB Drivers?..................................................................................................................................18
What are the Requirements for Ethernet Network Devices?....................................................................................20
How Do I Select and Place Ethernet Network Devices? ..........................................................................................21
How Do I Connect Ethernet Network Devices?........................................................................................................22
What are the Requirements for USB Network Devices?..........................................................................................24
How Do I Select and Place USB Network Devices? ................................................................................................25
How Do I Connect USB Network Devices?..............................................................................................................26
Troubleshooting My Internet Service Installation? ...................................................................................................28
How Do I Use My Modem for Telephone Service? ..................................................................................................30
Where Do I Place My Modem for Telephone Service? ............................................................................................31
What are the Requirements for Telephone Service? ...............................................................................................32
How Do I Install the Modem for Telephone Service? ...............................................................................................33
How Do I Maintain the Battery?................................................................................................................................36
How Do I Mount the Cable Modem on a Wall? (Optional) .......................................................................................38
Telephone Service Frequently Asked Questions .....................................................................................................41
Having Difficulty? ......................................................................................................................................................42
Tips for Improved Performance ................................................................................................................................44
Front Panel LED Status Indicator Functions ............................................................................................................45
Notices......................................................................................................................................................................48
FCC Compliance ......................................................................................................................................................49
For Information .......................................................................................................................................... Back Cover



WebSTAR DPX2203C and EPX2203C VoIP Cable Modem Users Guide
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IMPORTANT SAFETY INSTRUCTIONS
Heed Warnings
Adhere to all warnings on the product and in the operating instructions.
Read, Retain, and Follow These Instructions
Read all of the instructions before you operate this product. Follow all operating
instructions that accompany this product. Retain the instructions for future use.
Give particular attention to all safety precautions.
Comply With Warnings
Avoid electric shock. Comply with all warnings and cautions in the operating
instructions, as well as those that are affixed to this product.
Power Warnings
Providing a Power Source
A label on this product indicates the correct power source for this product.
Operate this product only from an electrical outlet with the voltage and frequency
indicated on the product label.
If you are uncertain of the type of power supply to your home or business,
consult your cable service provider or your local power company.
Grounding This Product (U.S.A. and Canada Only)
If this product is equipped with either a three-prong (grounding pin) safety plug or
a two-prong (polarized) safety plug, follow these safety guidelines to properly
ground this product:
For a 3-prong plug (one prong on this plug is a protective grounding pin),
insert the plug into a grounded mains, 3-prong outlet.

Note: This plug fits only one way. If you are unable to insert this plug fully
into the outlet, contact your electrician to replace your obsolete outlet.
For a 2-prong plug (a polarized plug with one wide blade and one narrow
blade), insert the plug into a polarized mains, 2-prong outlet in which one
socket is wider than the