AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 704)

41-001343-01 Rev 03, Release 3.2.2 9-1
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
Log Settings page 9-2
Module/Debug Level Settings page 9-3
Support Information page 9-5
WatchDog Task Feature page 9-9
Error Messages Display page 9-11
Configuration and Crash File Retreival page 9-15
Troubleshooting Solutions page 9-19
Why does my phone display “Application missing”? page 9-19
Why does my phone display the “No Service” message? page 9-20
Why does my phone display "Bad Encrypted Config"? page 9-20
Why is my phone not receiving the TFTP IP address from the DHCP Server? page 9-21
How do I restart the IP phone? page 9-22
How do I set the IP phone to factory default? page 9-23
How do I erase the phone’s local configuration? page 9-24
How to reset a user’s password? page 9-25
How do I lock and unlock the phone? page 9-27