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An Internet telephone and video calling service from Skype Technologies S.A.R.L., Luxembourg City, Luxembourg (, a division of Microsoft. Being software based, calls from Skype subscribers originate from their computers or mobile devices, and if the recipient is using a computer or mobile, voice and video calls are free. Access to regular telephones is also available. For outgoing calls, users can dial a landline or cellphone for a low per-minute or monthly charge, and subscribers can obtain a Skype number to receive calls from landlines and cellphones worldwide.

In 2010, Skype introduced its group video calling service that lets five people have a videoconference.

Explosive Growth
Introduced in 2004, within a year, more than a hundred million people downloaded the software. In the fall of 2005, Skype claimed 40 million active users and was acquired by eBay for USD $2.6 billion. By late 2008, an average of 10 million users were using Skype simultaneously. Skype was acquired by private investors a year later with eBay retaining a major equity position. In 2011, Microsoft bought Skype and partnered with Facebook to allow its members to make video calls.

Rather than using standard voice over IP (VoIP) protocols such as SIP and H.323, Skype uses proprietary protocols that incorporate a peer-to-peer architecture. If Skype cannot make a direct connection from one user to the other, it may elicit one of its users who has the Skype application loaded to become a "supernode" and relay the call. Only a fraction of the millions of Skype users become supernodes at any given time. See Skype for Business, supernode and softphone.
References in periodicals archive ?
The skype blog reads, "Alexa users will soon be able to take advantage of the high-quality Skype network across the globe to easily connect with others from any device type such as PC, mobile phone, and Xbox.
Microsoft has introduced new features to the Skype Preview app for Android (version 8.28.76), allowing Skype fans to test and give feedback on its latest innovations.
Back in 2016, Skype posted a total of 300 million users.
Clarity Connect contact center has been tested and certified by Microsoft as fully compatible with Skype for Business Server 2015, the company said.
"This measure will help prevent individuals from obtaining a Skype ID and resolving to an IP address," the Skype team wrote in a blog post.
The distributor underlines that Yealink's UC Edition phones SIP-T48G and SIP-T22P are compatible with Skype for Business and builds on Microsoft Lync's features and functionality to provide a UC platform that enables instant messaging, audio and video conferencing, and online meetings.
Replacing Microsoft Lync, "Skype for Business" combines the best features of Lync and Skype in a Skype-inspired user interface for an intuitive experience that is similar whether you are in a work environment or just communicating with friends and family.
What is Skype? Skype is a web-based programme that allows you to communicate with people by telephone call, video call or instant messaging.
Many teachers are organizing interactive Skype sessions similar to the one described in the opening vignette.
Dubai: Local telecom providers are remaining tight-lipped even as local internet and smartphone users are still able to access their Skype connections.