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15. Troubleshooting
This part provides guidance to help you solve problems you might encounter when
deploying phones.
If you require additional information or assistance with the deployment, please contact
your system administrator.
Why does the phone fail to download configuration files?
Ensure that auto provisioning feature is configured properly.
Ensure that the provisioning server and network are reachable.
Ensure that authentication credentials configured on the phone are correct.
Ensure that configuration files exist on the provisioning server.
Why does the provisioning server return HTTP 404?
Ensure that the provisioning server is properly set up.
Ensure that the access URL is correct.
Ensure that the requested files exist on the provisioning server.
Why does the phone display "Network Down"?
Ensure that the Ethernet cable is plugged into the Internet port on the phone and the
Ethernet cable is not loose.
Ensure that the switch or hub in your network is operational.
Ensure that the configurations of network are properly set in the configuration files.
Why is the permission denied when uploading files to the root directory of the FTP
server?
Ensure that the complete path to the root directory of the FTP server is authorized.
Check security permissions on the root directory of the FTP server, if necessary,
change the permissions.
Why doesn’t the phone obtain the IP address from the DHCP server?
Ensure that settings are correct on the DHCP server.
Ensure that the phone is configured to obtain the IP address from the DHCP server.
Why doesn’t the phone display the Language, only display English on LCD and
Web?
Ensure that the name of the language is correct.
Ensure that the network is available and the root directory is right for downloading.
Ensure that the parameters are correctly set in the configuration files.
Ensure that the language’s Coding format is UTF-8.
Why doesn’t the phone display the wallpaper or ScreenSaver or the weblogo of
webpage?
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