User manual

3. Then click the confirm button, then the phone will reboot. (The phone must reboot for

this parameter take effect)

4. Export the config.bin file

5. Click start button, the phone will start to capture the trace, and then reproduce this issue,

once the issue happen, click stop button, and export the PCAP file.

6. Export the level 6 system log.

For T3 series and VP530, the steps to obtain the information are the same as the T2series,

but the path maybe a little different.

The config.bin file and syslog are under Phone-> Configuration page

While the PCAP trace is under Phone->Upgrade page.

Also you can use a Wrieshark tool to capture the trace.

2. Q: How to capture a Wireshark packet?

A: Please refer to the document:

http://www.yealink.com/Upload/document/Wireshark%20tool%20and%20instruction.rar

Please note, if you want to capture the trace by this tool, the pc and the phone should be

connected to the same hub.

3. Q: Why the phone unable to obtain an IP address, Prompting message “Network

Unavailable” and icon is displayed on LCD?

1. First Check if your network cable is connected with PC port, if yes, please try to connect

it to the Internet port.

2. Check if the network cable is OK, to make sure the connection between cable and phone

is OK.

3. Check if network parameters such as IP address are set correctly.

4. Make sure your network is working fine, i.e. DHCP server is running fine, if there is

available IP address in DHCP server, if more than one DHCP servers conflict there.

4. Q: Why it shows “IP conflict” on the LCD?

1. Set another available statics IP address for your phone.

2. Reset to factory and try again.