- -------------------------------------------------------------------------------- SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 --------------------------------- FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 20, 2004 Date of Report (Date of earliest event reported) ------------------------------------------------ SONUS NETWORKS, INC. (Exact Name of Registrant as Specified in its Charter) DELAWARE 000-30229 04-3387074 - ---------------------------- ----------------------- ---------- (State or Other Jurisdiction (Commission File Number) (IRS Employer of Incorporation) Identification No.) 250 APOLLO DRIVE, CHELMSFORD, MASSACHUSETTS 01824 (Address of Principal Executive Offices) (Zip Code) (978) 614-8100 (Registrant's telephone number, including area code) - -------------------------------------------------------------------------------- Item 12. RESULTS OF OPERATIONS AND FINANCIAL CONDITION. The information in this Current Report on Form 8-K and the exhibits attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On August 20, 2004, Sonus Networks, Inc. issued a press release reporting its financial results for the quarter ended June 30, 2004. A copy of the press release is attached as Exhibit 99.1 hereto. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: August 20, 2004 SONUS NETWORKS, INC. By: /s/ Albert A. Notini ------------------------------------- Albert A. Notini President and Chief Operating Officer Exhibit Index 99.1 Press release of Sonus Networks, Inc. dated August 20, 2004 reporting financial results for the quarter ended June 30, 2004.