Skype is a proprietary Voice Over IP service and software application that was first released in 2003. The service allows communication via voice, instant messaging, and video and is currently available for most major desktop and mobile operating systems.

Skype allows calls to be made to landlines, other VoIP users, and mobile phones. Calls to other Skype users are free, while calls to mobile phones and landlines are charged via bundle plans or pay-per-use rates. Skype uses its own proprietary protocol, which competes with SIP and H.323-based protocols used by other voice over IP apps.

The Skype brand was first acquired by eBay on September 12, 2005 for $2.6 billion USD. Microsoft purchased Skype in 2011 for $8.5 billion USD.

Skype's first major new feature in a long time -- video messaging -- began internal testing in February 2013 before being officially rolled out to all platforms except Windows Phone on June 17, 2013, though users on Windows Phone can still receive and view these messages.

Skype is currently the most widely used VoIP service in the world by a large margin, with more than 70 million downloads of the application occurring on the Android OS alone as of June 2012. Microsoft merged Skype with its Windows Live Messenger service everywhere except mainland China on April 8th, giving Skype a user base of roughly 350 million, though the company hasn't publicly released its user count in some time. The company has, however, revealed a goal to hit 1 billion total users.

Skype Releases Updates for iPhone and Mac, Adding OSX Yosemite Support, New Features, UI Improvements, and More

Skype for Mac, Mac VoIP, apps for Mac

Skype has just released new updates for both iPhone and Mac, which add UI improvements, save and delete photo functionality, and more. The full list…

Skype Releases Its Redesigned VoIP and IM Application for Windows Desktop

Skype for Windows, Windows Desktop version of Skype, Skype VoIP and IM

It’s been a few weeks since we reported on the redesigned version of Skype for Windows Desktop and the day has finally arrived for the…

Skype Bringing WebRTC Nearer to Internet Explorer for Easier Voice Over IP Calling

Skype WebRTC voip, instant messaging, social calling app

WebRTC is a pretty big deal. A number of calling and messaging services have embraced the technology to enable easier access to their services for…

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