Yair Shamir

Yair Shamir has served as a director of the Company since October 1996. He has served as President and Chief Executive Officer of VCON Telecommunications, Ltd., a developer and marketer of video conferencing systems, since February 1997. From July 1995 to February 1997, Mr. Shamir served as the Executive Vice President of The Challenge Fund-Etgar L.P., a venture capital firm. Mr. Shamir currently serves as a director of Mercury Interactive, a provider of performance management solutions; Orckit Communications, Limited, a developer and manufacturer of local loop communications systems; Poalim Capital Markets and Investments, Ltd., an investment banking firm; and VCON Telecommunications, Ltd., a developer and manufacturer of desktop and group videoconferencing systems. Mr. Shamir also currently serves as Chairman of Catalyst Fund, a venture capital firm.