The Swiss Development Center (SDC) is part of Microsoft’s Unified Communication Group within Microsoft’s business division. The SDC develops collaboration technologies and products for Microsoft Office. In November 2005 Microsoft acquired media-streams.com, a Zürich based start-up. Media-streams.com was founded in January 2000. Its core business was to develop and market voice over IP technology. Based on the Swiss start-up, Microsoft created a development center for collaboration technology. More