CSG Systems International, Inc. provided earnings guidance for the full year 2023. For the year the company expected revenue of $1,150 million - $1,175 million; GAAP net income to be in the range of $66,200,000 to $71,200,000; and EPS of $2.19 to $2.35; and GAAP operating income of $124,200,000 to $131,400,000.