If they’re in Do Not Disturb mode, your call will not go through.

Note: If the team member you’re calling is set to away, the call will ring for 30 seconds. In one-to-one and group DMs, your call will start immediately and the team member(s) you’re calling will be notified of an incoming call via a pop-up. To start a voice call in Slack, open a channel or DM and click the phone icon at the top of your screen. How to make voice calls in SlackĬalls supports one-to-one calls in DMs (available to all Slack teams) and group calls up to 15 participants in channels and group DMs (only for paid teams on the Standard plan and above). To disable Calls for your team, follow the same steps as above and untick the box next to Enable Calls for this team. This enables Calls for all team members and only Team Owners and Admins can disable the feature again. To turn on Calls for your team (Team Owner or Admin only), go to your Team Settings page > next to Calls, click expand > check the box next to Enable Calls for this team > click Save Setting. To use Calls, your Slack Team Owner or Admin will have to opt-in to Slack’s new Calls feature. Using the Calls feature, any member of a Slack team can start a voice call with any other team member in a Direct Message while teams on Slack’s Standard plan and above can also start calls in channels and group Direct Messages (DMs). Calls uses WebRTC so no additional plugin is required.

The new “Calls” feature is currently in beta and limited to voice calls in Slack’s latest desktop app for Mac and Windows and the Web app in Chrome. has made it even simpler for teams to collaborate - at least on voice calls - with the release of a new native conference calling feature in its app. In January Skype announced integration with enterprise messaging app Slack that allows Slack team members to make Skype voice and video calls from directly inside the Slack app.

Slack phone icon