EXHIBIT 12.10

CSG Systems International, Inc.

Ratio of Earnings to Fixed Charges

(in thousands, except ratios)

	Year Ended December 31, 2009
Income from continuing operations before income taxes	$	63,369
Fixed Charges:
Interest on long-term and short-term debt, including amortization of original issue discount and deferred financing costs		14,042
Interest element of rentals		4,034
Total fixed charges		18,076
Earnings before income taxes and fixed charges		81,445
Ratio of earnings to fixed charges		4.51