Slack is primarily a text-based communication platform that uses a chat room type layout. Slack also offers the ability to do voice, video, and screen-sharing calls. Although these are somewhat restricted depending on the subscription plan your workspace is using.
If the workspace is on the free plan, you can only make one-on-one voice or video calls through direct messages with other users. If the workspace is part of one of the paid Standard, Plus, or Enterprise Grid plans, you can make voice, video, or screen-sharing calls between up to fifteen people through group direct messages or through channels.
When you join a call, your microphone is activated by default, which could lead to accidentally broadcasting something you didn’t mean to if you didn’t realize the call was connected. To avoid any chance of accidentally broadcasting something you don’t mean to as you join a call or meeting, you may want to configure Slack to mute your microphone by default when joining a call. Doing so gives you the ultimate control over when your microphone is active and what can be heard from you.
How to Turn off the Mic When Joining a Slack Call
If you want to configure Slack to mute your microphone by default, you can do so by going to preferences. To do so, click on your profile picture in the top-right corner, then click on “Preferences.”
Once in preferences, switch to the “Advanced” tab. Scroll down to the “When joining a Slack call” section. To join calls with your microphone muted, tick the checkbox labeled “Mute my microphone.”
If your microphone is active when you join a call, you could accidentally broadcast something you didn’t want to to the other member or members of the call. By following this guide, you can eliminate this risk by having Slack automatically mute your microphone when you join a call.