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 Date of Report (Date of earliest event reported): August 14, 2002 CSG SYSTEMS INTERNATIONAL, INC. --------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Delaware 0-27512 47-0783182 ---------------------------- ------------- ---------------- (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification Number) 7887 East Belleview Avenue, Suite 1000, Englewood, CO 80111 --------------------------------------------------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (303) 796-2850 Item 9. Regulation FD Disclosure. ------- ------------------------------------------ On August 14, 2002, the registrant filed its Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2002. Attached are the Certifications of Periodic Financial Report by the Chief Executive Officer and Chief Financial Officer of CSG Systems International, Inc. Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. ************* Signatures 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 14, 2002 --------------- CSG SYSTEMS INTERNATIONAL INC. By: /s/ Joseph T. Ruble ------------------------------ Joseph T. Ruble, Secretary and General Counsel CSG Systems International, Inc. Form 8-K Correspondence Index Description ----------- .. Certification of Periodic Financial Report by the Chief Executive Officer .. Certification of Periodic Financial Report by the Chief Financial Officer