If the people you call can't hear you, or your microphone isn't picked up when you make calls in your browser, the cause is almost always a microphone permission or device setting rather than a fault with the call itself. This is one of the most common issues raised with Support — typically one-way audio (where you can hear the caller but they can't hear you), a microphone that isn't detected, or the browser using your laptop's built-in microphone instead of your headset, which often also causes background noise on the line.
This guide explains how to check and correct your microphone settings for Natterbox calling in Google Chrome and Microsoft Edge. It covers selecting the correct microphone, allowing the Natterbox web address to access it, and what to do if your browser is managed by your IT administrator and the settings are locked.
Google Chrome
To make sure your microphone settings are properly configured for Calling in Google Chrome:
1. Open Google Chrome
2. Click the "more" icon at the top right of Chrome and then click Settings.
3. On the left, click "Privacy and security".
4. Then click “Site Settings”.
5. Click Microphone to open your microphone settings.
6. On your microphone settings page (chrome://settings/content/microphone), check that your microphone is selected in the first drop-down menu.
Note: If the microphone is set to default (usually the Laptop/PC array (built-in) microphone) and people you are calling can't hear you, set it to the specific microphone you are using.
7. Turn on “Ask before accessing” setting (if not enabled already), if the option is available for the Chrome version you are using.
8. Make sure your Natterbox URL (https://webphone.redmatter.com:443) is listed under Allow and not listed under Block.
Further Troubleshooting
It is possible that your network administrator controls your microphone settings. In that case, you can't change them here.
To check if your Chrome browser is managed by an administrator:
Copy/paste this link into the URL bar in your Chrome browser: chrome://policy/
If you see a list of Chrome policies, your browser is managed. If you see "No policies set," your browser is not managed.
If your browser is managed, you’ll need your administrator to grant Natterbox access/permissions to your Chrome microphone.
Microsoft Edge
To make sure your microphone settings are properly configured for Calling in Microsoft Edge:
Open Microsoft Edge
Click the three dots (
...) icon at the top right of the windowScroll down the menu and click Settings.
On the left navigation pane, click Privacy, Search and Services
Scroll down to the Site permissions section and click on Microphone
On your microphone settings page (
edge://settings/content/microphone), check that your preferred microphone is selected in the dropdown menuNote: If the microphone is set to default (usually the Laptop/PC array (built-in) microphone) and people you are calling can't hear you, set it to the specific headset/microphone you are using.
Turn on the "Ask before accessing" toggle switch (if not enabled already)
Make sure your Natterbox URL (
https://webphone.redmatter.com:443orhttps://webphone.natterbox.net) is listed under Allow and not listed under Block
Further Troubleshooting
It is possible that your network administrator controls your browser's microphone settings. In that case, you won't be able to change them here.
To check if your Edge browser is managed by an administrator:
Copy and paste this link into your Edge address bar:
edge://policy/If you see a list of Microsoft Edge policies, your browser is managed. If you see "No policies set," your browser is not managed.
If your browser is managed, you’ll need your IT administrator to grant Natterbox permissions to your Microsoft Edge microphone.