How to fix echo on calls (Phone, Skype, Messenger, Viber, Hangouts) (During a phone call)

Maybe one of the processes responsible for the speaker and microphone is not functioning properly, causing an echo. Restart your device, by turning it off and back on after a few minutes, which should be all you need to do, in order to solve this problem.

Although it's next to impossible, maybe the phone case you use is the reason why you hear echo. Remove the phone case, call someone, and check if you can hear an echo.

If you tried everything else to solve this problem, but nothing worked, consider buying a new microphone (headset, webcam or another device with a microphone), because the one you have has weakened and is beyond repair.

If you experience echo-related issues with the device's built-in microphone, consider using a headset. By using headset, the microphone will be away from the device's speakers and you should stop hearing echo during calls.

If you hear echoing sounds during a phone call, it is possible that the person you talk with has enabled the loudspeaker of his mobile device. You should stop hearing echoing sounds once the interlocutor disables the loudspeaker.

If you can hear echo during phone or online calls, move your mobile device away from electronic devices (TV's, speakers, etc.), as much as possible, and ask the other person to do the same.

Maybe one of the operator's towers is the reason why you hear echo during phone calls. In this case, the best thing you can do is to notify the operator about this issue and they should fix it.

Maybe you experience this issue because something (a program, a bug in the operating system, etc.) is slowing down your computer. To fix this issue, you need to optimize the computer.

Check out the computer is slow guide, which will help you optimize your computer to use its full potential.

Maybe you experience this issue because something (an app, a bug in the operating system, etc.) is slowing down your mobile device. To fix this issue, you need to optimize the mobile device.

Check out the mobile device is slow guide, which will help you optimize your mobile device to use its full potential.

Maybe a bug in the app you are using for online calls is the real reason for this issue. Check if there is an updated version of the app available online and if there is, install it.

If you are not sure how to check for updates, check out the don't know how to update programs/applications guide.

Sometimes, all you need to do to stop hearing echoing sounds during phone calls is to activate the loudspeaker (while being in a phone call) and deactivate it after a few seconds. You can activate/deactivate it by pressing the speaker icon (or headset) from the call menu.

Maybe the headset itself is the reason for this issue. Remove it from the device and then make a call.

According to a user, the echo issue was resolved after the user opened one of the windows in their room. Feel free to try the same.