 In the 1990s , Tele @-@ Communications Inc . ( TCI ) and Time Warner scrapped efforts to create internal billing software and hired CSG International . The 15 @-@ year agreement CSG signed with TCI on August 11 , 1997 made CSG the largest vendor in the industry and was the primary contributor to its growth in the ' 90s . By 2001 , the deal was responsible for 45 percent of CSG 's revenue . As part of the deal , CSG also acquired TCI 's internally developed software , <unk> , for $ 106 million . CSG 's services to TCI included billing , customer management and payment processing for TCI customers . In October 1997 , CSG International signed its first deal with a utilities company , mc2 . 
