PRINCIPAL CLIENTS

12 Months Ended

Dec. 31, 2012

Risks and Uncertainties [Abstract]

PRINCIPAL CLIENTS

PRINCIPAL CLIENTS

The following table represents revenue concentration of our principal clients:

	Year Ended December 31,
	2012		2011
	Revenue	Percentage	Revenue	Percentage
AT&T Services, Inc. and AT&T Mobility, LLC, subsidiaries of AT&T, Inc. (1)	$63,904	32.3%	$127,096	57.9%
T-Mobile USA, Inc., a subsidiary of Deutsche Telekom (2)	$55,916	28.2%	$43,698	19.9%

(1) Revenue from this customer is generated through our Domestic and Asia Pacific segments.

(2) Revenue from this customer is generated through our Domestic, Asia Pacific and Latin America segments.

Our work for AT&T is covered by several contracts for a variety of different lines of AT&T business.  These contracts expire over the course of 2013 through 2015.  The initial term of our master services agreement covering all AT&T work expired in January 2010, and had been extended annually with the latest extension through January 31, 2013.   On January 25, 2013, we entered into a new master services agreement with AT&T Services, Inc., which expires December 31, 2015 and may be extended upon mutual agreement.

On July 28, 2011, we entered into a new master services agreement (the “MSA”) with T-Mobile effective July 1, 2011, which covers all services that we provide to T-Mobile. The MSA replaces the previous master services agreement dated October 1, 2007, has an initial term of five years and will automatically renew for additional one-year periods thereafter, but may be terminated by T-Mobile upon 90 days written notice.