Skype, the Microsoft-owned service that popularized making calls over the internet, is hanging up for good. In May, Microsoft will shutter Skype, which it bought in 2011 for $8.5 billion in what at the time was the biggest acquisition in the tech giant’s history.

Microsoft is pivoting to support Teams instead. Microsoft 365 head Jeff Teper encouraged Skype users to migrate their Skype contacts to Teams.