Symptoms
- You hear your own voice repeated back with a delay
- Echo only happens on speakerphone
- Caller says they hear an echo of themselves
- Echo happens with a specific Bluetooth device
Likely causes
- CommonSpeakerphone picking up sound and re-sending itIn a quiet or hard-surfaced room, the mic can pick up the speaker's own output and echo it back.
- CommonIssue on the other caller's phone or connectionMany echoes are caused by the other person's speakerphone or weak connection, not your phone.
- PossibleBluetooth headset or car audio processing delaySome Bluetooth accessories introduce audio lag that sounds like an echo.
- PossibleNetwork or VoIP call quality issueCalls made over Wi-Fi Calling or internet-based apps can echo when the connection is unstable.
- Less commonCase or object partially blocking the mic and speaker togetherThis can cause sound to bounce and re-enter the mic.
What to do
- Turn off speakerphone and hold the phone to your ear to see if the echo stops.
- Ask the other caller to turn off their speakerphone, since the echo is often on their end.
- If using Bluetooth, disconnect it and try the call on the phone's built-in earpiece and mic.
- Move to a room with soft furnishings if using speakerphone, as hard surfaces make echo worse.
- Switch off Wi-Fi Calling temporarily and test the call over cellular only.
- Restart the phone to clear any stuck audio session.
- Update Bluetooth accessory firmware through its companion app if available.
- If the echo continues on every call from your side specifically, contact your carrier to check the line.
When to call a pro
If echo happens on your calls specifically regardless of speakerphone or Bluetooth, your carrier can check for a line issue.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.