Microsoft's Skype has finally shut down, concluding its 22-year tenure as the once-dominant internet calling and messaging service.

Skype users are scrambling to find an alternative after Microsoft shut down the pioneering internet phone service which let people make cheap long distance calls and chat with other users.

After 23 years of connecting people around the world, Skype, the popular video-calling service, is shutting down. Microsoft, the parent company, confirmed Here's a list of alternative video-calling apps that can replace Skype when it shuts down on May 5.