What is Skype?

Skype is an IP telephony service provider that offers free calling between subscribers and low-cost calling to people who don’t use the service. In addition to standard telephone calls, Skype enables file transfers, texting, video chat and video conferencing. The service is available for desktop computers, notebook and tablet computers and other mobile devices, including mobile phones. A number of companies, including Skype, produce dedicated Skype phones. Included in the free service is a softphone application that can be downloaded to any computing device running Windows, Macintosh, Linux, or Windows Mobile operating systems. A function called SkypeOut enables calls to regular telephones; these calls are charged to a prepaid account or to a flat-fee annual subscription. Skype was founded by Estonian developers Zahti Heinla, Priit Kasesalu and Jaan Tallinn, Danish developer Janus Friis and Sweden’s Niklas Zennstrom. The foremost voice-over-IP service was launched in August 2003. Skype actually stands for “Sky Peer to Peer.”

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