Yealink CP960 Skype for Business, User Manual

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Troubleshooting
153
Troubleshooting
This chapter provides general troubleshooting information to help you solve the problems you
might encounter when using your CP960 Skype for Business phone.
If you require additional information or assistance with your new phone, contact your system
administrator.
Troubleshooting Solutions
Why is the touch screen blank?

Ensure that you are using a PoE-compliant switch or hub.

Contact your system administrator for more information.
Why does the phone display “Network Unavailable”?

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 available.

Contact your system administrator for more information.
Why doesn’t the phone display time and date correctly?
Check if you have configured the phone to obtain the time and date from the SNTP server
automatically. If the phone fails to connect the SNTP server, contact your system administrator
for more information. You can also configure the time and date manually. For more
information, refer to
Time & Date on page 41 .
How can I find the basic information of the Skype for Business phone?
Tap
More
->
Status
to check the basic information of the Skype for Business phone, such as IP
address and firmware version. For more basic information, refer to Phone Status on page 30 .
How to obtain the MAC address of a phone when the phone is not powered on?
Three ways to obtain the MAC address of a phone:

You can ask your supplier for shipping information sheet which includes MAC addresses
according to the corresponding PO (Purchase Order).

You can find the MAC address in the label of carton box.

You can also find the MAC address from the phone’s bar code on the back of the phone.