AGREEMENT AS TO JOINT FILING OF AMENDMENT NO. 1 TO SCHEDULE 13GBlue Harbour Group, LP • February 14th, 2011 • Communications services, nec
Company FiledFebruary 14th, 2011 IndustryThe undersigned acknowledge and agree that the foregoing Amendment No. 1 to Schedule 13G is filed on behalf of each of the undersigned. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that it knows or has reason to believe that such information is inaccurate. This Agreement may be executed in counterparts and each of such counterparts taken together shall constitute one and the same instrument.