8-K

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): June 2, 2004

CSG SYSTEMS INTERNATIONAL, INC.

(Exact name of registrant as specified in its charter)

Delaware	0-27512	47-0783182
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer 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 7. Financial Statements and Exhibits.

(c) Exhibit

99.1 Press release of CSG Systems International, Inc. dated June 2, 2004.

Item 9. Regulation FD Disclosure.

On June 2, 2004, CSG Systems International, Inc. issued a press release announcing that its Board of directors authorized an additional 5 million shares of common stock to be available for repurchase under the company’s stock repurchase plan.

A copy of such press release is attached to this Form 8-K as Exhibit 99.1.

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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: June 2, 2004

CSG SYSTEMS INTERNATIONAL, INC.
By:	/s/ Randy Wiese
	Randy Wiese, Principal Accounting Officer

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CSG Systems International, Inc.

Form 8-K

Exhibit Index

99.1 Press release of CSG Systems International, Inc. dated June 2, 2004.

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EX-99.1

Exhibit 99.1

NEWS RELEASE

For Immediate Release

CSG Systems Board Authorizes

Repurchase of 5 Million Additional Shares

Englewood, CO. —June 2, 2004— CSG Systems International, Inc. (Nasdaq: CSGS) today announced that the Board of directors has authorized an additional 5 million shares of common stock to be available for repurchase under the company’s stock repurchase plan. This brings the total number of outstanding shares of common stock available under the plan to 15 million. To date, the company has repurchased 8.4 million shares since its inception.

This press release does not constitute an offer to sell or the solicitation of an offer to buy securities and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale is unlawful. The Securities and the common stock issuable upon conversion of the Securities have not been registered under the Securities Act of 1933 or applicable state securities laws and, unless so registered, may not be offered or sold in the United States except pursuant to an exemption from the registration requirements of the Securities Act and applicable state securities laws.

About CSG Systems International

Headquartered in Englewood, Colorado, CSG Systems International (NASDAQ: CSGS) is a leader in next-generation billing and customer care solutions for the cable television, direct broadcast satellite, advanced IP services, next generation mobile, and fixed wireline markets. CSG’s unique combination of proven and future-ready solutions, delivered in both outsourced and licensed formats, empowers its clients to deliver unparalleled customer service, improve operational efficiencies and rapidly bring new revenue-generating products to market. CSG is an S&P Midcap 400 company. For more information, visit our Web site at www.csgsystems.com.

For more information contact:

Liz Bauer

Senior Vice President, IR and Corporate Communications

CSG Systems International, Inc.

303.804.4065

liz_bauer@csgsystems.com