How to fix VoIP call quality problems: echo, choppy audio and delays
Choppy audio, echo or one-way sound? Use this step-by-step checklist to find the cause and fix common VoIP call quality problems fast.
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When a call sounds bad, customers blame your business. The good news is that most problems are simple to find. Work through the list below from top to bottom.
| Problem | Likely cause | First fix |
|---|---|---|
| Choppy or robotic audio | Weak or busy internet | Use a wired connection, pause downloads |
| Echo | Speaker sound reaches the microphone | Use a headset, lower the volume |
| Delay or talking over each other | High latency | Restart the router, close heavy apps |
| One-way audio | Microphone blocked or network setting | Check microphone permission in the browser |
| Dropped calls | Unstable Wi-Fi | Move closer or go wired |
Step-by-step checklist
- Check your headset is plugged in and selected as the microphone and speaker.
- Allow the browser to use the microphone when asked.
- Close other tabs and apps that use video or large downloads.
- Switch from Wi-Fi to a wired connection, or move closer to the router.
- Restart your router and computer.
- Update your browser, using a supported one such as Chrome or Edge.
- Test a call from another device to see whether the problem moves with you.
How to fix echo
Echo almost always means the other person's voice is coming out of your speaker and back into your microphone. A headset solves it. If you must use speakers, lower the volume and move the microphone away.
When to contact support
If the problem continues, note the time, the number you called and what you heard. Details help support find the cause quickly.
Related: how much bandwidth VoIP needs, choosing a headset and our system requirements.
Test your own connection
- Run a speed test and note upload, download and ping.
- Make a test call and listen for choppy or delayed audio.
- Repeat at your busiest time of day.
- Try a wired connection and compare.
Choose the right setup
- Headset with a boom microphone.
- A quiet space, away from fans and traffic.
- A supported, updated browser.
- A backup connection for important calls.
Keep a log
When problems repeat, a simple log helps. Write down the date, time, the person calling, the number dialled and what happened. After a few entries you may see a pattern, such as a bad hour every afternoon, which points to your network or to a particular device.
Frequently asked questions
Why does my VoIP call sound robotic?
Usually the connection is dropping data. Use a wired connection and reduce other usage.
Why can the other person not hear me?
Check the microphone permission and the selected device.
Does a VPN affect calls?
It can add delay. Test with the VPN off if you can.
Should I use headphones or a headset?
A headset with a microphone is best.
We build business calling for teams in the USA, Canada, the UK, Australia and Japan, with a browser phone and a built-in CRM. About Dialsyx
