Exhibit 23.1 CONSENT OF INDEPENDENT AUDITORS We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-107863) of Catapult Communications Corporation of our report dated November 19, 2003 relating to the financial statements, which appears in this Form 10-K. /s/ PricewaterhouseCoopers LLP San Jose, California December 5, 2003