Exhibit 99.2 Product Revenues Based on New Categories (In thousands) 2006 ---- Q4 Q3 Q2 Q1 -- -- -- -- Loop Access $51,846 $59,053 $55,426 $43,260 Carrier Systems 35,475 50,049 46,369 44,051 Business Networking 22,548 23,548 20,501 21,337 ------------------------------------------------------- $109,869 $132,650 $122,296 $108,648 Subcategories included in above: - -------------------------------- Broadband Access (included in Carrier Systems) $14,421 $23,870 $21,491 $21,002 Optical Access (included in Carrier Systems) 8,857 10,121 9,078 8,424 Internetworking (Netvanta & IP Business Gateway) (included in Business Networking) 10,912 9,162 7,599 8,429 HDSL (does not include T1) (included in Loop Access) 42,880 49,563 45,979 35,664 2005 ---- Q4 Q3 Q2 Q1 -- -- -- -- Loop Access $64,039 $68,985 $56,238 $48,550 Carrier Systems 56,275 56,543 42,278 35,040 Business Networking 20,281 23,642 20,357 20,987 ------------------------------------------------------- $140,595 $149,170 $118,873 $104,577 Subcategories included in above: - -------------------------------- Broadband Access (included in Carrier Systems) $22,913 $25,276 $16,270 $21,002 Optical Access (included in Carrier Systems) 15,548 9,370 8,476 8,424 Internetworking (Netvanta & IP Business Gateway) (included in Business Networking) 4,867 6,525 7,146 8,429 HDSL (does not include T1) (included in Loop Access) 48,022 53,454 45,128 35,664 2004 ---- Q4 Q3 -- -- Loop Access $55,913 $61,860 Carrier Systems 29,671 30,991 Business Networking 19,041 22,400 ---------------------------- $104,625 $115,251 Subcategories included in above: - -------------------------------- Broadband Access (included in Carrier Systems) $11,450 $11,678 Optical Access (included in Carrier Systems) 3,815 4,052 Internetworking (Netvanta & IP Business Gateway) (included in Business Networking) 3,206 3,992 HDSL (does not include T1) (included in Loop Access) 45,371 47,317