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Chapter 1

Introduction

The Nortel Business Communications Manager 450 (BCM450) provides private network and telephony management capability to small and medium-sized businesses. The BCM450 system integrates voice and data capabilities, and IP Telephony gateway functions into a single telephony system. It also enables you to create and provide telephony applications for use in a business environment.

Purpose

This guide provides procedural information to help you troubleshoot and isolate problems in your BCM450 network.

Audience

The BCM450 Troubleshooting Guide is for use by network administrators responsible for maintaining BCM networks that include BCM450 devices. This guide is also useful for network operations center (NOC) personnel supporting a BCM450 managed services solution. To use this guide, you must:

be an authorized BCM450 administrator within your organization

know basic Nortel BCM450 terminology

be knowledgeable about telephony and IP networking technology

Organization

This guide is organized for easy access to information that explains the troubleshooting procedures associated with using the BCM450 system. This guide contains information on the following topics:

Initial Troubleshooting on page 15

Hardware Troubleshooting on page 19

Software Troubleshooting on page 37

Advanced Troubleshooting on page 51

Recovery trees on page 69

Downloading Software on page 75

Troubleshooting Tools on page 79

Understanding system messages on page 83

Useful Troubleshooting Links on page 85

Frequently Asked Questions on page 87

BCM450 Troubleshooting Guide

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Nortel Networks BM450 manual Introduction, Purpose, Audience, Organization