Microsoft announced on Friday it will shutter the once-popular video calling service Skype in May and encouraged users to adopt a free version of its Teams service. The service will shut down roughly 14 years after Microsoft purchased it for $8.

Microsoft said today it will be retiring the original free internet calling app Skype in May and migrating customers to Microsoft Teams. Skype launched in 2003.

Microsoft is closing down Skype, the video-calling service it bought for $8.5 billion in 2011 and which had helped spark a transformation in how people communicate online.