Yealink Phone Red Light Flashing? (Don’t Panic, Easy Fix!)

If your Yealink phone red light flashing, don’t worry. This is not critical, just continue reading!

The red light of the Yealink phone could have several different states, each indicating something different.

• The red light could either be solid red, flashing red quickly, or flashing red slowly. 

In fact, on some Yealink models, the red light may not even indicate an issue. Let’s learn more!

Yealink Phone RED LIGHT Indications:
Solid Red Light	The solid red light signalizes that the phone is currently initializing and must not be interacted with. The initialization must take no more than 10–15 minutes.
Slowly Flashing Red	If the indicator flashes slowly, it could either mean that the phone is ringing or has disconnected from the network. This is considered an error and may last for a while.
Fast Flashing Red	The fast flashing red light indicates you have missed calls or an unread voicemail you must go through.  This error takes 15–20 seconds to clear.
Blank Indicator	If the indicator is blank (not showing any light), either there are no notifications to display or the phone has lost power.

5 Working Solutions When Yealink Phone Red Light Flashing!

Note: A quick thing to try is disconnecting and reconnecting your Yealink phone from power.

1. Clear Missed Calls & Read the Voicemail

The first step is to clear any missed calls and unread voicemails on the Yealink phone.

This is the primary cause for the consistent flashing light on the Yealink phone.

Hence, clearing your voicemail should instantly prevent the red light from blinking, so it’s worth it to begin with this.

Here’s how to check for unread voicemail and missed calls on Yealink:

1. Press “OK” on the phone’s dial pad to open the menu.
2. Enter “Voicemail” and select “Play Message” to start.
3. Use the “Up” and “Down” key to navigate the category.
4. Highlight the desired unread message from the listings.
5. Finally, press the “Select” soft key to initiate the hearing.
6. Repeat for all unread messages and calls on the phone.

Note: After cycling through all of the unread messages, the LED indicator should disappear.

2. Reset the Yealink Phone’s Power Supply

Well, regardless of the light code, a power cycle is always helpful if you’re uncertain about what error the Yealink phone is showing.

Underlying fluctuations with the power supply could not only be the cause for the red light but also reboot the Yealink phone unexpectedly and cause issues.

Here’s how to reset the power supply of the Yealink phone:

1. Unplug Yealink’s power supply from the rear phone panel.
2. Disconnect the other end of the Yealink phone’s A/C supply.
3. Press any button on the keypad and hold it for 5 seconds.
4. Reconnect your supplying cord to the phone and the outlet.
5. Wait until the Yealink phone turns on and check the red light.

How to Detect & Resolve Yealink Phone Power Issues?

The leading concerns for a power issue with the Yealink phone involve constant rebooting, powering issues or display problems. 

You can address power issues with the Yealink phone by:

• Connecting the Yealink phone to a different A/C outlet.
• Connecting the A/C power cord securely on both ends.
• Removing third-party equipment from the phone setup.
• Inspecting the power cord for damages and replacing it.

If there are any visual signs of a power cord malfunction, you can solve the red light and restore the phone’s functionality by replacing it with a brand-new one.

3. Reconnect your Yealink to the Network 

If you’re still wondering how to get rid of the flashing red light on your Yealink phone, and it appears to be blinking in a consequently slow way, there’s an issue with the network.

Since some Yealink phones have built-in Wi-Fi support, we’ll review the two possible ways of connecting the phone.

3.1 How to Reconnect Yealink Over Ethernet?

1. Connect an Ethernet cable to one of Yealink’s gigabit ports.
2. Plug the other end into the network’s router or gateway device.
3. Wait until the phone recognizes the connection and guides you.

3.2 How to Reconnect Yealink Over Wi-Fi?

1. First, open the menu on the Yealink phone and go to “Basic” → “Wi-Fi.”
2. Choose “[x] Available Network/s” where “x” is the number of networks.
3. Choose the desired network from the list and write down the password.
4. Press Connect, choose “OK” and wait until the Yealink phone connects.

3.3 How to Know if Yealink is Connected?

There is an easy way to test whether your Yealink phone is connected to the network.

You only need a Windows computer, connected to the same router as your Yealink phone.

Then you can open the CMD (Command Prompt) type “ping [phone’s IP address]” and check for a response.

Quick Tip: You can find the IP by going to “Settings” → “Status” → “IP” on the Yealink phone.

4. Troubleshoot Yealink’s Incoming Calls

Another cause for a slow flashing red light on the Yealink phone is an issue with the incoming calls.

There could be several causes why the Yealink phone is unable to receive calls, causing the indicator to pulsate in red slowly.

If Yealink doesn’t receive calls, there are several things to check:

• Check the registration of the SIP of the Yealink phone.
• Crank up the ringer volume to hear the incoming calls.
• Ensure your “DND” (Do Not Disturb) mode is disabled.
• Deactivate the “Call Forward” option in Yealink’s menu.
• Check if the caller has been put in the Blocked section.

The slow red light will only occur if the phone detects the incoming call, but has been muted or suspended from ringing.

So, if there’s a network connection failure, the phone may be unable to receive a call entirely, therefore the red light will have a different meaning.

Note: When you’re ready, unplug your Yealink phone from the electrical supply for 60 seconds!

5. Open Port “5060” from your Router

If you’re seeing a constantly flashing red light and the Yealink phone is not ringing, the incoming calls are likely being blocked by your router.

To resolve this problem, you may need to open port 5060, responsible for incoming calls, which can be done through your network router’s interface.

Here are detailed instructions on how to open port 5060 on your router:

1. First, ensure your PC is connected to your router.
2. Open a web browser and go to “http://192.168.100.1/”
3. Sign in by using admin/admin or admin/password.
4. As per your router, locate the “Port-Forwarding” tab.
5. Insert the port you want to open, in this case, “5060.”
6. Lastly, save the settings and then restart your router.

When you’re ready, also reboot the Yealink phone and check whether the red light is blinking!

6. Reset your Yealink Phone to Default

If the Yealink phone flashing red light after all solutions so far, it’s time for a factory reset.

By restoring Yealink to factory defaults, you will erase all settings and configurations of the phone that could have been the cause for the persistent red light.

There are two methods to reset a Yealink phone!

6.1 How to Reset Yealink Through Phone Menu?

1. Press the “Menu” softkey on the phone’s keypad.
2. Then head to “Settings” → “Advanced UI” below.
3. Enter the user password to access the category.
4. Next, select “Reset to Factory” from the settings.
5. Wait for the “Warning, Reset to Factory Setting”.

6.1 How to Reset Yealink Through the Web GUI?

1. Check the phone’s IP address and paste it into your browser.
2. On the login page, use “admin/admin” or “admin/password.”
3. Then, head to the Settings and Upgrade tab from the menu.
4. Choose “Reset to Factory” from the options on your screen.
5. Follow all the instructions to finalize the phone’s factory reset.

Note: Do not interact with the phone for at least 5 minutes after the factory reset has started.