Microsoft has introduced a new Skype preview version that includes Slack integration, enabling Slack users to make video calls and voice calls over Skype with less effort. The new preview is available starting today; after adding Skype integration to Slack, users will be able to access the familiar Skype calling feature through a simple Slack command.
Those who use both Slack and Skype can setup this feature by visiting the Skype integration page for Slack and clicking the “Add to Slack” button. This will pull up a page requiring the user to choose which team the integration will be for, as well as which channel within that team and commands that will be added. After authorizing, the integration will be finished.
Now that Skype and Slack are integrated, users can pull up Skype by typing the “/skype” command into Slack. The user will need to set up the call first, then make it available, which will post a link for others from the team to join. A notification will be given to team members; those on Android, iOS, Windows, Mac, and the Web will get a notification.
For those on the receiving end of a Skype call, the user only needs a desktop web browser to join, though those on mobile will be able to join by downloading the Skype mobile app for their platform. Those without a Skype or Microsoft account will be able to join as a guest.
SOURCE: Skype Blog