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John D. Beletic, age 65, has served as a director of the company since July 1999 and Lead Director since August 2008. Since July 2002, Mr. Beletic has been a venture partner or operating partner with Oak Investment Partners, a venture capital firm. Mr. Beletic is also a director of Cheddars Inc., a 140+ unit restaurant company; Shareablee, a social data analytics company; and J5 Infrastructure Partners, a site acquisition, engineering, installation and construction company serving mobile carriers. Mr. Beletic served as Chairman or Vice Chairman of Xiotech Inc. (X-IO Technologies), a provider of enterprise level disk storage systems from November 2011 to November 2016 and was President and Chief Executive Officer from November 2011 to May 2014. He was Chairman of the Board of Directors of iPass, an internet access company, from 2008 to 2015. Earlier in his career, Mr. Beletic served as CEO of telecommunications companies Tigon Corporation, PageMart Wireless, and Weblink Wireless.