Cisco Systems OL-21035-01 User Manual download pdf

CHAPTER

6-1

Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0

OL-21035-01

Troubleshooting and Maintenance

This chapter provides information that can assist you in troubleshooting problems with your ATA 187 or

with your IP telephony network. It also explains how to clean and maintain your phone.

This chapter includes these topics:

• Resolving Startup Problems, page 6-1

• ATA 187 Resets Unexpectedly, page 6-5

• Troubleshooting ATA 187 Security, page 6-7

• General Troubleshooting Tips, page 6-7

• Where to Go for More Troubleshooting Information, page 6-9

• Cleaning the ATA 187, page 6-10

Resolving Startup Problems

After installing an ATA 187 into your network and adding it to Cisco Unified Communications Manager,

the phone should start up as described in the Installing the ATA 187, page 3-3. If the phone does not start

up properly, see the following sections for troubleshooting information:

• Symptom: The ATA 187 Does Not Go Through its Normal Startup Process, page 6-1

• Symptom: The ATA 187 Does Not Register with Cisco Unified Communications Manager, page 6-2

• Symptom: ATA 187 Unable to Obtain IP Address, page 6-4

Symptom: The ATA 187 Does Not Go Through its Normal Startup Process

When you connect a phone in the network port, the phone should go through its normal startup process

as described in the Verifying the ATA 187 Startup Process, page 3-3. If the phone does not go through

the startup process, the cause may be faulty cables, bad connections, network outages, lack of power,

and so on. Or, the phone may not be functional.

To determine whether the phone is functional, follow these suggestions to systematically eliminate these

Summary of Contents

Page 1 - Resolving Startup Problems

CHAPTER 6-1Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-016Troubleshooting and MaintenanceThis cha

Page 2 - Checking Network Connectivity

6-10Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 3 - Verifying DNS Settings

6-2Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 4 - Procedure

6-3Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 5 - ATA 187 Resets Unexpectedly

6-4Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 6

6-5Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 7 - General Troubleshooting Tips

6-6Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 8 - OL-21035-01

6-7Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 9

6-8Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

Page 10 - Cleaning the ATA 187

6-9Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.0OL-21035-01Chapter 6 Troubleshooting and Maintenance

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