Radvision was a provider of video conferencing and telepresence technologies over IP and wireless networks based in Tel Aviv, Israel. It offered development and test suites for voice and video over IP communications. Radvision was acquired by Avaya in June 2012. Spirent Communications acquired Radvision's Technology Business Unit from Avaya in July 2014, to become Spirent Developer Tools Business Unit. In July 2017, Spirent Developer Tools BU was spun off into a private company called Softil Ltd.