Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D originally filed on June 9, 2008 (including additional amendments thereto) with respect to the shares of Common Stock, par value $.20 per share, of Tollgrade Communications, Inc.  This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated:  October 5, 2009

RAMIUS VALUE AND OPPORTUNITY MASTER FUND LTD By:  RCG Starboard Advisors, LLC,
its investment manager   RCG PB LTD By:  Ramius Advisors, LLC,
its investment advisor   RAMIUS ENTERPRISE MASTER FUND LTD By:  Ramius Advisors, LLC,
its investment advisor     RCG STARBOARD ADVISORS, LLC By:  Ramius LLC,
its sole member   RAMIUS ADVISORS, LLC By: Ramius LLC,        its sole member   RAMIUS LLC By:  C4S & Co., L.L.C.,
as managing member   C4S & CO., L.L.C.

By:	/s/ Jeffrey M. Solomon
	Name:	Jeffrey M. Solomon
	Title:	Authorized Signatory

/s/ Jeffrey M. Solomon

JEFFREY M. SOLOMON

Individually and as attorney-in-fact for Peter A. Cohen, Morgan B. Stark and Thomas W. Strauss