Sky Project

OpenSky was a service provided by Gizmo5, which is now out of business, to enable communication between users of SIP (Internet standard RFC 3261) and users of Skype (which uses a proprietary protocol).Early solutions to communication between the two classes of user typically required installation of a gateway.OpenSky – the first freely available hosted SIP to Skype gateway service – commenced on 9 February 2009.In March 2009 Skype announced a beta of Skype For SIP, a comparable service for business users.On 30 July 2009 Digium, Inc.

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