On May 21, 2012, Avistar Communications Corp., as borrower, entered into an amendment to the third amended and restated revolving credit promissory note agreement (the Amendment) with JP Morgan Chase Bank, N.A. (the Bank), as lender. The third amended and restated revolving credit promissory note agreement provided a maximum line of credit facility amount of $8.0 million from December 22, 2011 through and including March 13, 2012, and then a reduced maximum line of credit facility of $6.0 million from and after March 14, 2012 through the maturity date on December 22, 2012. The primary purpose of the amendment was to modify the maximum line of credit facility amount for the entire period from May 21, 2012 through the maturity date to $7.0 million. As of May 21, 2012, the total principal amount borrowed by Avistar under the credit facility was $6.0 million.