Charles Kissner

Mr. Kissner has served as a director since July 2012. Mr. Kissner also currently serves as Chair of our Board of Directors and Audit Committee, and as a member of our Corporate Governance/Nominating Committee. Mr. Kissner currently serves as chief executive officer of Digital Pillars, a private information systems company. From April 2013 to September 2017, Mr. Kissner served as Chairman of the Board of ShoreTel Inc., a business communications systems company acquired by Mitel Networks Corporation. He joined ShoreTel as a director in April 2006. From January 2007 to February 2015, he was Chairman of Aviat Networks and from June 2010 to July 2011, Mr. Kissner was Chairman and CEO. From 2010 to 2015, he served on the board of Meru Networks, a technology leader in the enterprise wireless systems market. From 1995 to 2006, he served as Chairman and CEO of Stratex Networks, a global provider of wireless transmission solutions. Mr. Kissner previously was Vice President and General Manager of M/A-COM, Inc., a manufacturer of radio and microwave communications products, President and CEO of Aristacom International, a communications software company, Executive Vice President of Fujitsu Network Switching, Inc., and held a number of executive positions at AT&T. He has also served on a number of other public and private boards, as well as not-for-profit boards such as the NPR Foundation and Angel Flight, Inc and KQED Public Media. Mr. Kissner holds a Bachelor of Science degree from California State Polytechnic University and a Master of Business Administration degree from Santa Clara University.