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Clyde A. Heintzelman has served on the board of directors since July 2005. Mr. Heintzelman served as the Chairman of the Board of Optelecom, Inc. from February 2000 to June 2003 and as its interim President and Chief Executive Officer from June 2001 to January 2002. From November 1999 to May 2001, he was President of Net2000 Communications, Inc. On November 16, 2001, Net2000 Communications and its subsidiaries filed voluntary petitions for relief under Chapter 11 of the United States bankruptcy code. From December 1998 to November 1999, Mr. Heintzelman served as the President and Chief Executive Officer of SAVVIS, Inc. (formerly SAVVIS Communications Corporation), a networking and Internet solutions company. Mr. Heintzelman currently serves as a director and chairman of the audit committee of SAVVIS, Inc., as a director and a member of the audit committee of Telecommunication Systems, Inc. and as a director and chairman of Citel plc.
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