Operating instructions

About This Guide
72-4017315-01 Rev B xv
About This Guide
Introduction
This installation and operation guide applies to the Model DPC2203C voice over
Internet Protocol (VoIP) Cable Modems. These models are cable modems with an
embedded media terminal adapter (EMTA) including two RJ-11 telephone ports
supporting two-line voice services, a 10/100Base-T Ethernet port, and a USB 1.1 port
for high-speed data connectivity.
The DPC2203C is compatible with the following specifications:
 Data Over Cable System Interface Specifications (DOCSIS
®
) 2.0 and 1.1
 PacketCable
TM
1.0 (upgradeable to PacketCable 1.1)
This guide provides the following design, performance, and technical information
for understanding basic VoIP and cable modem operation and function to
familiarize you with the DPC2203C:
 Design and performance features
 Theory of operation for cable modems
 Procedures for installing, operating, maintaining, and troubleshooting the
DPC2203C using the Cable Modem Access Protection and WebWizard features
 Appendixes that include technical specifications
Purpose
This installation and operation guide contains detailed instructions for installing,
operating, maintaining, and troubleshooting the DPC2203C.
Audience
This guide is written for cable service providers, system operators, cable modem
installers, system engineers, customer service representatives, cable modem
marketing personnel, and Cisco Service engineers.