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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2014

Schedule of Significant Customers, Revenue Concentration Information

A significant portion of the Company’s revenue is derived from three significant customers. The following table reflects the percentage of total revenue from those customers for the three and six months ended June 30, 2013 and 2014:

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2014			2013			2014
Subsidiaries of AT&T Inc.		77.8	%		63.5	%		81.3	%		62.3	%
DIRECTV		0.0	%		21.9	%		0.0	%		21.8	%
Alcatel-Lucent		7.2	%		3.9	%		7.6	%		4.1	%
Other		15.0	%		10.7	%		11.1	%		11.8	%

Schedule of Significant Customers Accounts Receivable, Concentration of Credit Risk

Accounts receivable due from these significant customers at December 31, 2013 and June 30, 2014 are as follows (in thousands):

	December 31, 2013		June 30, 2014
Subsidiaries of AT&T Inc.	$	70,426	$	53,242
DIRECTV		10,699		11,941
Alcatel-Lucent		8,211		4,784
	$	89,336	$	69,967

- Definition

Tabular disclosure of all significant concentrations of risk, including credit risk and market risk, arising from all financial instruments (as defined), whether from an individual counterparty or groups of counterparties. The disclosure concerning concentrations of risk may consist of the following information: (1) for concentrations of credit risk disclosure may include: (a) information about the (shared) activity, region, or economic characteristic that identifies the concentration, (b) the maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity, (c) the policy of requiring collateral or other security to support financial instruments subject to credit risk, information about the entity's access to that collateral or other security, and the nature and a brief description of the collateral or other security supporting those financial instruments, and (d) the policy of entering into master netting arrangements to mitigate the credit risk of financial instruments, information about the arrangements for which the entity is a party, and a brief description of the terms of those arrangements, including the extent to which they would reduce the entity's maximum amount of loss due to credit risk and (2) for disclosure of quantitative information about the market risks of financial instruments that is consistent with the way the company manages or adjusts those risks, disclosure may include: (a) more details about current positions and perhaps activity during the period, (b) the hypothetical effects on comprehensive income (or net assets), or annual income, of several possible changes in market prices, (c) a gap analysis of interest rate re-pricing or maturity dates, (d) the duration of the financial instruments, (e) the entity's value at risk from derivatives and from other positions at the end of the reporting period and the average value at risk during the year, or (f) other ways of reporting quantitative information as internally developed.

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- Definition

Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.

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