Troubleshooting

About this chapter

Chapter 9

Troubleshooting

About this chapter

Introduction

This chapter describes tasks that a system administrator can perform on the IP phones for troubleshooting purposes. It also includes answers to questions you may have while using the IP phones.

Topics

This chapter covers the following topics:

Topic

Page

 

 

Troubleshooting

page 9-2

 

 

Troubleshooting Solutions

page 9-7

 

 

Why does my phone display “Application missing”?

page 9-7

 

 

Why does my phone display the “No Service” message?

page 9-8

 

 

Why does my phone display "Bad Encrypted Config"?

page 9-8

 

 

Why is my phone not receiving the TFTP IP address from the DHCP

page 9-9

Server?

 

How do I restart the IP phone?

page 9-10

 

 

How do I set the IP phone to factory default?

page 9-11

 

 

How do I erase the phone’s local configuration?

page 9-12

 

 

How to reset a user’s password?

page 9-13

 

 

How do I lock and unlock the phone?

page 9-14

 

 

Troubleshooting

41-001160-00, Release 2.1, Rev 04

9-1

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Image 487
Aastra Telecom 53I, 57I CT, 55I manual Troubleshooting