Starting a Call

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

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


Before you begin

  • Calls require a modern browser with WebRTC support (all current desktop browsers qualify).
  • Allow microphone access when your browser prompts. For video calls, camera access is also required.
  • All participants must be signed in to the portal.

Starting a call from a channel or DM

  1. Open the channel or DM thread you want to call from.
  2. Select the Call icon in the conversation header (phone or camera icon).
  3. Choose Voice call or Video call.
  4. The call panel opens for you. Other participants in the thread receive a call notification.

Joining a call

When a call is in progress in a thread you are part of, a call banner appears at the top of that conversation.

  1. Select Join in the call banner.
  2. The call panel opens and connects you to the session.

In-call controls

Control What it does
Mute / Unmute Toggle your microphone. Other participants cannot hear you when muted.
Camera on / off Toggle your video feed (video calls only).
End call Leave the call. Other participants remain connected unless you are the last person.

Ending a call

Select End call (red phone icon) to leave. If you are the last participant, the call ends for everyone.


Next steps