Yealink CP960 Teams Edition User Manual page 53

Why is the screen blank?
• Ensure that the device is properly plugged into a functional AC outlet.
• Ensure that the device is plugged into a socket controlled by a switch that is on.
• If the device is plugged into a power strip, try to plug it directly into a wall outlet instead.
• If the device is powered from PoE, ensure you use a PoE-compliant switch or hub.
Why does the device display "Network unavailable"?
• Ensure that the switch or hub in your network is operational.
• Contact your system administrator for more information.
Why does the device display time and date incorrectly?
Check whether your device obtains the time and date from the SNTP server automatically. If the device
fails to connect the SNTP server, contact your system administrator for more information. You can also
configure the time and date manually.
How can I obtain the MAC address of a device when the device is not
powered on?
You can use one of the following ways to obtain the MAC address of a device:
• You can ask your supplier for a shipping information sheet which includes MAC addresses according to
the corresponding PO (Purchase Order).
• You can find the MAC address on the label of the carton box.
• You can also find the MAC address from the phone's bar code on the back of the phone.
Why can't I receive calls?
• Check whether your status is DND mode, if it is, you should reset status.
• Check whether the call forward is enabled on the phone.
Why doesn't my handset work?
• Check that the headset cord is fully connected to the headset jack on the phone.
Checking the IP Address of Device
Procedure
Navigate to > Settings > Device Settings > About.
| Troubleshooting | 53