Troubleshoot Yealink Phones

Hi, I am Alejandro at Voiceopia, and I am going to teach you how to troubleshoot your new Voiceopia phone.
The very first I like to check is that the device has power. Press any button. If the phone does not respond. Hold the red power button on the phone to turn it on.
If the phone says "unregistered!" this means that the phone is not setup. If you see an "X" in the top left-hand corner or the message "searching for base" this means the handset is not connected to the base.
If you get an error message that says "Network unavailable" this means your phone does not have a connection to your network. We can fix this by checking the cable plugged into the base. The cable could be bad or the port on the wall may not be connected. If you get an error message that says "Retrieving network" or the network light flashing green on the base this means that the phone is connected to your network but it is not getting an address from a router. This could be in the case that your router is down or you need special network settings to connect to your network.
If you get an error that says "Line Invalid" or "Line Forbidden" this would indicate that the base is not connected to the internet or your location may not be whitelisted. We can confirm this with some quick testing.
First, let's confirm that the internet is working by checking to see if there are any devices that are working. If not then I suggest troubleshooting that first. If other devices are connected to the internet, Please give us a call so we can get your location whitelisted ASAP or continue the troubleshooting process.
If you are a customer of ours and have any questions or comments, give us a call or text at 423-509-8000 or send us an email at We are more than willing to answer any questions you might have.


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