Problem
Your Yealink phone is showing a "No Service" message on the LCD display.
Solution
As this issue has multiple causes, it is important that you work through each solution until you find one that works.
The phone needs to be rebooted
Most times, a reboot will do the trick. To reboot your Yealink phone:
- unplug the power cable, wait 10 seconds
- plug it back in. If you don't use a power cable, it means you use PoE (Power over Ethernet); In this case, unplug the cable connected to the "Internet" port on the back of your phone, wait 10 seconds, and then plug it back in.
Another method:
- Locate the X (or cancel) key.
- Press and hold the X key until you see a prompt on the screen.
- Press the OK soft key (below the screen) to confirm the reboot.
- Wait for the reboot to complete
The Ethernet cable is plugged into the wrong port
Check the back of your phone and ensure that an Ethernet cable is plugged into the port labelled "Internet", with the other end of the cable going to your router, network switch, or a working wall port.
The Ethernet cable is damaged
Try replacing the Ethernet cable that runs between the "Internet" port on the back of your phone and the wall/switch/router. A damaged Ethernet cable will cause the phone to cease functioning.
Your PC is causing issues
If you are connecting your PC via Ethernet cable to the PC port on your phone, unplug it and try again.
Your phone is not set up
Your phone may not be configured for use. The steps to take depend on what system you are using.
If you are using 3CX, follow this guide.
If you are not using 3CX, contact us with a request for help. You will need to provide us with remote access via VPN or RDP. Speak to your network admin or IT team for more information.
Still need help?
If the above steps did not resolve your issue, you can raise a case with our team by clicking here. We may verify that you have completed the above steps, so don't forget to try!
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