Yealink SIP VP-T49G Developer's Guide

Troubleshooting
107
This chapter provides general troubleshooting information to help to solve the
problems you might encounter when developing XML applications for Yealink IP
phones. Besides, it also provides related troubleshooting tools and parsing error
debug example for you to trace errors. If you require additional information or
assistance, contact your system administrator.
Why does the phone display "Loading error!" when executing the XML object?
 Ensure that the network is reachable.
 Ensure that the server is running properly.
 Ensure that the HTTP server application is running properly.
 Ensure that the URI is resolved.
 Ensure that the XML object file exists on the server.
 Ensure that the URI is parsed.
Why does the phone display "File layout error!" when executing the XML object?
 Check whether the XML object files’ syntax is right. For example, XML tags are in
pairs.
The following tools will help you troubleshoot problems with the XML services.
 Standard web browser (Microsoft Internet Explorer 6.0 or a later version)
- Verify the connectivity.
- Verify the validity of the URI called by the phone.
 Network packet analyzer such as Wireshark
- Verify what is exchanged between the phone and the server.
 HTTP Server log
- Verify if the HTTP GET is reached the server.
- Verify the parameters of the HTTP GET.
 Phone log (syslog)
- Verify how the phone processes a XML request.

Yealink SIP VP-T49G Specifications

General

Brand	Yealink
Model	SIP VP-T49G
Category	IP Phone
Language	English