has announced that is is now rolling out voice calls to every one of its users. The workplace chat app has been testing voice calls in beta for months, but everyone will now be able to take advantage of the feature going forward.
Says :
Anyone can make one-on-one calls, while paid teams can also make group calls in any channel or group DM. When someone initiates a call, a message will appear, inviting you to join the call.
Getting started with Slack calls is a pretty straightforward process. If you're on desktop, you can initiate a call by clicking the phone button at the top right of the window. In the Android app, you can make a call by tapping "Start a Call" in the channel title or DM dropdown menu.