Exhibit 99.2

Product and Segment Revenues
(In thousands)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
		2009			2008			2009			2008
Product revenues:
Loop Access	$	42,073		$	57,930		$	128,582		$	157,355
Carrier Systems		59,865			53,880			158,804			162,766
Business Networking		26,124			25,385			72,568			68,142
Total	$	128,062		$	137,195		$	359,954		$	388,263
Subcategories included in the above:
Broadband Access (included in Carrier Systems)	$	29,518		$	22,958		$	83,128		$	82,869
Optical Access (included in Carrier Systems)		20,094			16,707			44,260			41,256
Internetworking (Netvanta & Multi-service Access Gateways) (included in Business Networking)		21,276			19,185			57,018			50,084
Total Growth Products		70,888			58,850			184,406			174,209
Percentage of Total Revenue		55	%		43	%		51	%		45	%
HDSL (does not include T1) (included in Loop Access)		37,610			50,806			114,880			138,104
Other Products		19,564			27,539			60,668			75,950
Total Traditional Products		57,174			78,345			175,548			214,054
Percentage of Total Revenue		45	%		57	%		49	%		55	%
Total	$	128,062		$	137,195		$	359,954		$	388,263
Segment Revenues:
Carrier Networks	$	98,643		$	106,394		$	277,493		$	305,457
Enterprise Networks		29,419			30,801			82,461			82,806
Total	$	128,062		$	137,195		$	359,954		$	388,263
Sales by Geographic Region:
United States	$	121,403		$	129,357		$	339,906		$	366,218
International		6,659			7,838			20,048			22,045
Total	$	128,062		$	137,195		$	359,954		$	388,263