Microsoft is shutting down Skype: What other technologies have become obsolete?

Company Overview - Microsoft has announced the shutdown of Skype, which was once the leading video call service, scheduled for May this year [1] - At its peak, Skype had over 300 million users, but this number has significantly declined to more than 36 million users as of 2023 [1] Strategic Shift - Microsoft, which acquired Skype for $8.5 billion in 2011, will transition some of Skype's services to Microsoft Teams, its primary videoconferencing and team collaboration platform [2] - Existing Skype users will be able to log into Teams using their current accounts, facilitating the migration process [2]