(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

For 2010, Mr. Henderson will receive a base salary at an annual rate of $325,000, and for each subsequent calendar year, Mr. Henderson will receive an annual amount which will not be less than the annual amount in effect on December 31 of the immediately preceding calendar year.

The Chief Executive Officer of CSG, or his delegate, will establish an incentive bonus program for Mr. Henderson for 2010 in which Mr. Henderson shall have the opportunity to earn an incentive bonus of not less than 65% of his annual base salary, if the agreed upon objectives for the particular calendar year are fully achieved. The incentive bonus program is expected to be established in the third quarter of 2010.

Key termination benefits under the Agreement are summarized as follows:

If the Agreement is terminated due to death or disability, Mr. Henderson (or his estate as the case may be) will be entitled to receive his base salary accrued through the date of his termination and a pro rata portion of his annual incentive bonus for the calendar year in which the termination occurs.

If the Agreement is terminated for cause (as defined), Mr. Henderson will be entitled to receive his base salary accrued through the effective date of such termination.

If the Agreement is terminated without cause (as defined) prior to a change in control of CSG, Mr. Henderson will be entitled to receive his base salary through the date that is one year from the effective termination date, plus an amount equal to 115% of the base salary in effect on the effective termination date.

If the Agreement is terminated without cause (as defined) after a change in control of CSG, Mr. Henderson will be entitled to receive his base salary through the date that is two years from the effective termination date, plus an amount equal to 165% of the base salary in effect on the effective termination date.

Mr. Henderson will be precluded from soliciting CSG employees for employment outside of CSG, and competing against CSG for a period of one year from the effective date of his termination of employment with CSG.

From 2008 to 2010, he served as Chief Sales Officer with Call Genie, a mobile search and advertising company;

From 2004 to 2007, he worked for Telcordia Technologies, a telecommunications software and services company, serving as President of their Global Solutions from 2005 to 2007, and as President of their New Generations Systems from 2004 to 2005;

From 1999 to 2004, he served as Executive Vice President of Global Sales and Marketing of the Software Systems Division for ADC Corporation (“ADC”), a communications company; and

Prior to ADC, Mr. Henderson was co-founder and Chief Executive Officer of PCI, a venture-backed software company, and held senior executive positions with Nortel, Frontier Corporation, and Volt Delta Resources.