<SEC-DOCUMENT>0001564590-19-010492-index.html : 20190402 <SEC-HEADER>0001564590-19-010492.hdr.sgml : 20190402 <ACCEPTANCE-DATETIME>20190402100602 ACCESSION NUMBER: 0001564590-19-010492 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20190402 DATE AS OF CHANGE: 20190402 EFFECTIVENESS DATE: 20190402 FILER: COMPANY DATA: COMPANY CONFORMED NAME: CSG SYSTEMS INTERNATIONAL INC CENTRAL INDEX KEY: 0001005757 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374] IRS NUMBER: 470783182 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 000-27512 FILM NUMBER: 19723117 BUSINESS ADDRESS: STREET 1: 6175 SOUTH WILLOW DRIVE CITY: GREENWOOD VILLAGE STATE: CO ZIP: 80111 BUSINESS PHONE: 3037962850 MAIL ADDRESS: STREET 1: 6175 SOUTH WILLOW DRIVE CITY: GREENWOOD VILLAGE STATE: CO ZIP: 80111 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>csgs-defa14a_20190516.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: csgs-defa14a_20190516.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>gbuyr4rhfruj000002.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: gbuyr4rhfruj000002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>gbuyr4rhfruj000004.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: gbuyr4rhfruj000004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>gbuyr4rhfruj000001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: gbuyr4rhfruj000001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>gbuyr4rhfruj000003.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: gbuyr4rhfruj000003.jpg
</DOCUMENT> </SEC-DOCUMENT>