Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Registration Nos. 333-04290, 333-52907, 333-83007, 333-55470, 333-65502, 333-95965 and 333-96969) of Tollgrade Communications, Inc. of our report dated February 26, 2007 relating to the financial statements, financial statement schedule, management’s assessment of the effectiveness of internal control over financial reporting and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

PricewaterhouseCoopers LLP
Pittsburgh, Pennsylvania
 
February 26, 2007