Starting a Call

Calls let you switch from a text conversation to voice or video with team members. They are started from within a chat channel or direct message thread.

Call quality and in-call controls are being actively improved. Core functionality — starting, joining, leaving, and muting — works as described here.

Calls are available when Meetings is turned on for your workspace. If you do not see the Start a call button in a conversation, ask your administrator.


Before you begin

  • Calls require a modern browser. Allow microphone access when your browser prompts. To share video, camera access is also required.
  • Only people in the channel or direct message can join a call started there.
  • You can set whether your microphone and camera start on or off in Settings, under Calls, by selecting Manage call preferences.

Starting a call from a channel or DM

  1. Open the channel or DM thread you want to call from. In a channel, you need to be a member.
  2. Select Start a call in the conversation header.
  3. The call opens in the chat window and you join it. A card in the thread says you started a call, and other participants are notified.

Joining a call

When someone starts a call in a thread you are part of, you are notified in either of these ways:

  • An Incoming call window appears with Decline and Answer buttons.
  • A card in the thread shows who started the call, with a Join call button.

Select Answer or Join call. The call opens in the chat window and connects you to the session. A call that has already ended cannot be joined.


In-call controls

Control What it does
Mute microphone Toggle your microphone. Other participants cannot hear you when muted.
Turn camera off Toggle your video feed.
Share screen Share your screen with the other participants.
Toggle thread chat Show or hide the conversation next to the call.
Switch microphone or camera Choose a different microphone or camera.
Pop out Move the call into a floating panel.
Leave Leave the call. It continues for the other participants.
End End the call for everyone. Available to the person who started the call and to admins.

Ending a call

Select Leave to leave a call that is still going for others. Select End to end it for everyone.


Next steps