EXHIBIT 12.10

CSG Systems International, Inc.

Ratio of Earnings to Fixed Charges

(in thousands, except ratio)

	Nine Months Ended September 30, 2008 (unaudited)
Income from continuing operations before income taxes	$	64,517
Fixed Charges:
Interest on long-term and short-term debt including amortization of debt expense		5,677
Interest element of rentals		2,640
Total fixed charges		8,317
Earnings before income taxes and fixed charges	$	72,834
Ratio of earnings to fixed charges		8.76