EXHIBIT 12.10

CSG Systems International, Inc.

Ratio of Earnings to Fixed Charges

(in thousands, except ratios)

	Year Ended December 31, 2007
Income from continuing operations before income taxes	$	93,461
Fixed Charges:
Interest on long-term and short-term debt including amortization of debt expense		7,126
Interest element of rentals		3,250
Total fixed charges		10,376
Earnings before income taxes and fixed charges	$	103,837
Ratio of earnings to fixed charges		10.01