There’s a particular kind of awkward that only happens on phone calls: you’re mid-conversation and the other person says, “I can hear myself echoing.” Or you hear your own voice coming back at you a split second after you speak, and suddenly every sentence feels like talking into a well.

Echo during calls is annoying, but it rarely means your phone is dying. In most cases it’s a feedback loop, a blocked microphone, or a network quirk — and the fix takes about a minute. Here’s how to work out which one you’re dealing with, in the order I’d actually try them.

What echo on a call actually is

When you speak, your voice travels to the other person’s phone and comes out of their speaker. If their phone’s microphone picks that sound back up — because the volume is high or the phone is on speakerphone — your voice gets sent straight back to you. You hear yourself, slightly delayed.

The same thing happens in reverse: if your microphone picks up the other person’s voice coming out of your earpiece or loudspeaker, they hear their own echo. That’s why echo complaints often come from the other end of the call. If someone tells you they can hear themselves, the problem is almost certainly on your side, even though your audio sounds fine to you.

One clarification before we go further. Echo is not the same as a speakerphone that produces no sound at all, and it’s not the same as an earpiece that’s gone quiet. If your speakerphone isn’t working, that’s a different fault — see speakerphone not working. And if you can barely hear the other person through the earpiece, that’s covered in fix your earpiece and call speaker. This article is specifically about echo: sound looping back around the call.

The most common cause: speakerphone feedback

Speakerphone is the number one echo culprit, and the reason is simple physics. On speakerphone, the loudspeaker and the microphone are both active and both exposed. Your phone plays the other person’s voice out loud, and the mic — sitting centimetres away — picks some of it up and sends it back.

It gets worse in certain conditions:

• High volume. The louder the loudspeaker, the more sound bleeds into the mic.
• Small, hard-surfaced rooms. Bathrooms, kitchens and cars bounce sound around, so the mic catches more of it. A carpeted room with soft furnishings absorbs sound instead.
• Phone lying flat on a table. A hard surface reflects the loudspeaker output straight back towards the microphone.

If the echo only happens on speakerphone and never on a normal handset call, you’ve found your cause. Take the call off speakerphone, or turn the volume down a couple of notches. Dropping from maximum volume to around two-thirds often breaks the loop entirely.

A case or screen protector covering the microphone

This one catches people out because it doesn’t look like a problem. A thick case, a case with a slightly misaligned mic cut-out, or a screen protector that’s crept over the mic hole can muffle and distort what the mic picks up. A distorted mic signal confuses the phone’s echo-cancellation software, which is designed to filter out loudspeaker output — and when that filtering goes wrong, echo slips through.

It’s a quick check: take the case off and make a test call. If the echo disappears, the case was the problem. Look for a case with properly aligned cut-outs, and check that no screen protector is overlapping the tiny mic hole at the bottom edge of the phone. A mic partially blocked by moisture behaves in a similar way, which is why a water in phone microphone problem can sometimes show up as echo rather than silence.

Network delay and VoIP calls

Sometimes the echo has nothing to do with your phone at all. On VoIP calls — WhatsApp, FaceTime, Zoom, Teams — and on weak mobile signals, audio can be delayed by a fraction of a second. That delay makes any small amount of feedback far more noticeable, because your brain hears the echo as a distinct repeat rather than blending it into the original sound.

Signs that point to the network rather than your handset:

• The echo comes and goes depending on where you are, or which app you’re calling on.
• It happens on one network (say, a weak Wi-Fi connection) but not on mobile data, or vice versa.
• Other people on a group call hear it too, or it affects everyone equally.

If this fits, try switching networks — move from Wi-Fi to mobile data, or step closer to your router — and see if it clears.

A second device on the same call

This is the classic group-call echo. Someone joins a call from both their phone and their laptop, or two people in the same room are both on the same call with their speakers on. Each device’s mic picks up the other’s speaker, and everyone hears a doubling effect.

If the echo starts when a particular person joins a group call, ask them whether they have a second device connected. Muting one device, or having them use headphones on one of them, usually kills it instantly. The same applies at home: if your phone is on speakerphone near a tablet that’s also in the call, that’s a feedback loop waiting to happen.

Software glitches and physical damage

Occasionally, echo appears right after a software update. An update can reset audio settings or change how echo cancellation behaves. If the echo started the day you updated — and none of the physical causes above fit — restart the phone, check for a further update (manufacturers often ship a quick follow-up fix), and check the call audio settings for anything that’s changed. There’s more detail in phone speaker not working after an update.

A phone that’s been dropped or dunked can also develop echo if the microphone or speaker is damaged. Water in the mic distorts the signal; a knock can shift a speaker module so it vibrates against the frame, and that vibration gets picked up by the mic. In these cases the echo usually comes with other symptoms — muffled audio, crackling, or distortion — rather than appearing on its own. Run a quick phone speaker test to check whether the speaker itself is producing clean sound, and try a gentle clean of the grille — how to clean your phone speaker covers the safe way to do it without pushing debris further in. If the audio is distorted as well as echoing, that’s a hardware problem and it needs a repairer, not a settings change.

Fixes in order: what to try first

Work through these from the top. Most people will find the answer in the first three.

• Turn speakerphone off, or lower the volume. Switch to the handset or a headset. If you need speakerphone, drop the volume a few notches and move to a softer-furnished room.
• Move somewhere quieter. Step out of the bathroom, kitchen or car and into a room with carpets and curtains. Hard surfaces amplify feedback.
• Remove the case and check the mic holes. Make a test call without the case. If the echo goes, replace the case with one that has properly aligned cut-outs.
• Check for a second device. On group calls, ask whether anyone is joined twice or sitting near another participant with their speaker on.
• Restart the phone. This clears temporary audio glitches and resets the call app’s audio routing.
• Try a different network or app. Switch between Wi-Fi and mobile data, or try a regular phone call instead of a VoIP app, to see whether the echo follows the network or the handset.
• Test with headphones. If the echo vanishes on headphones, the problem is the phone’s speaker-mic feedback loop or a blocked mic, not the network. If it persists on headphones, the network or the other person’s setup is more likely at fault.
• Update your software. Check for system updates, especially if the echo started after a previous update.
• Reset network settings. This is a later step, not a first resort — it clears saved Wi-Fi networks and Bluetooth pairings. Only try it after the simpler steps above.
• Book a repair if it persists on every call. Echo on all calls, on handset and headphones, after a restart and a software update, points to a damaged mic or speaker.

When it’s the other person’s phone, not yours

Here’s a genuinely useful diagnostic: if you hear echo but the other person doesn’t, the feedback loop is on their side. Their speaker output is being picked up by their mic and sent back to you. You can’t fix their phone from your end, but you can tell them exactly what to try — lower their volume, come off speakerphone, or remove their case.

Similarly, if you only hear echo with one particular contact and never with anyone else, their setup is the likely cause. Echo that follows you across every contact and every app is yours to fix.

Frequently Asked Questions

Why does the other person hear an echo but I don’t?
Because the feedback loop is on your side. Your loudspeaker output is being picked up by your microphone and sent back to them. Your own audio sounds normal to you, so you won’t notice anything wrong — but lowering your volume or coming off speakerphone will usually fix it for them straight away.

Does echo on calls mean my speaker is broken?
Not usually. Most echo is caused by speakerphone feedback, a case covering the mic, or network delay. A broken speaker tends to cause distortion, crackling or silence as well, not echo on its own. If the echo disappears on headphones, your speaker hardware is almost certainly fine.

Why does echo only happen on speakerphone?
On speakerphone, the loudspeaker and microphone are both active and close together, so the mic picks up the speaker output and sends it back. On a normal handset call the earpiece is quiet and pressed to your ear, so there’s very little sound for the mic to catch. Turning the speakerphone volume down usually breaks the loop.

Can a phone case really cause echo?
Yes. A case with misaligned cut-outs can partially cover the microphone, distorting what it picks up and confusing the phone’s echo-cancellation software. Take the case off and make a test call — if the echo clears, the case was the cause.

Why does echo happen on WhatsApp or FaceTime but not on normal calls?
VoIP calls are more sensitive to delay. If your connection is slow or congested, audio arrives slightly late, which makes any small feedback loop much more noticeable. Try switching between Wi-Fi and mobile data, or move closer to your router, and see if it improves.

Should I reset my phone to fix echo?
No — a full factory reset is overkill for echo and wipes your data. Work through the simpler steps first: volume, speakerphone, case, restart, headphones test, software update. A network settings reset is the furthest you should need to go, and only after the simpler fixes have failed.

Try a quick speaker check

If you’ve worked through the steps above and the echo is still there, it’s worth confirming your speaker itself is producing clean sound. A quick tone test can tell you whether the hardware is at fault or whether you’re still chasing a settings or network issue. You can run one free with our free speaker cleaner tool — it plays a test tone through your speaker and helps clear out any dust or moisture that might be distorting the sound. If the tone sounds clean and the echo only happens on calls, the problem is in the call setup, not the speaker.