1 EXHIBIT 2.3 CONTRIBUTION AGREEMENT THIS CONTRIBUTION AGREEMENT (this "Agreement") is entered into and is effective as of March 31, 2000, by and between Avistar Systems Corporation, a Delaware corporation ("Avistar"), Collaboration Properties, Inc.,...Contribution Agreement • July 12th, 2000 • Avistar Communications Corp • Computer communications equipment • California
1 EXHIBIT 10.1.1 AVISTAR SYSTEMS CORPORATION 1997 STOCK OPTION PLAN STOCK OPTION AGREEMENT Unless otherwise defined herein, the terms defined in the Plan shall have the same defined meanings in this Option Agreement. I. NOTICE OF STOCK OPTION GRANT...Stock Option Agreement • July 12th, 2000 • Avistar Communications Corp • Computer communications equipment • Nevada
