Ericsson is a world-leading provider of telecommunications equipment and related services to mobile and fixed network operators globally. Over 1,000 networks in more than 175 countries utilize our network equipment and 40 percent of all mobile calls are made through our systems. We are one of the few companies worldwide that can offer end-to-end solutions for all major mobile communication standards. [This is Ericsson] This is Ericsson (pdf) Through our Sony Ericsson Mobile Communications joint venture we offer a range of mobile devices, including those supporting multimedia applications and other services allowing richer communication. We invest heavily in R&D and actively promote open standards and systems. Also reflecting our ongoing commitment to technological leadership, we have one of the industry's most comprehensive intellectual property portfolio containing over 23,000 patents. Our origins date back to 1876. The parent company is Telefonaktiebolaget LM Ericsson (company registration number 556016-0680). Our headquarters are located, and the Board of Directors is seated, in Stockholm, Sweden.