Cisco Systems, Inc. designs, manufactures and sells Internet protocol (IP)-based networking and other products related to the communications and information technology (IT) industry, and provides services associated with these products and their use. It provides a line of products for transporting data, voice, and video within buildings, across campuses, and around the world. Its products are designed to transform how people connect, communicate and collaborate. Its products are installed at enterprise businesses, public institutions, telecommunications companies, commercial businesses and personal residences. It has five segments: United States and Canada, European Markets, Emerging Markets, Asia Pacific, and Japan. The Emerging Markets theater consists of Eastern Europe, Latin America, the Middle East and Africa and Russia and the Commonwealth of Independent States. In December 2009, the Company acquired Starent Networks.