What is Skype? A history of Microsoft's free video-calling app and how to use it

Skype is Microsoft's free video-calling app that was once a major telecommunications industry disruptor, but has since fallen out of popular use.

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• Skype is a free video-calling platform that Microsoft acquired for $8.5 billion over a decade ago.
• Skype was once the go-to video-calling app and telecommunications industry disruptor.
• But now, Skype has faded out of popular usage in favor of platforms like Zoom and Microsoft Teams.

Skype...