About this chapter
41-001160-00, Release 2.1, Rev 04 9-1
Troubleshooting
Troubleshooting
Chapter 9Troubleshooting
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 page9-2
Troubleshooting Solutions page9-7
Why does my phone display “Application missing”? page9-7
Why does my phone display the “No Service” message? page9-8
Why does my phone display "Bad Encrypted Config"? page9-8
Why is my phone not receiving the TFTP IP address from the DHCP
Server?
page9-9
How do I restart the IP phone? page9-10
How do I set the IP phone to factory default? page9-11
How do I erase the phone’s local configuration? page9-12
How to reset a user’s password? page9-13
How do I lock and unlock the phone? page9-14