Dell’Oro Group 1- 2010 . : , , . , 2010 .

, , , . 10%, , , 20 ., .

, , IP-, (, IP) (IP ). DellOro : IP. , , , IP, . DellOro, , — Aastra, Alcatel-Lucent, Avaya, Cisco, Mitel, NEC, Shoretel, Siemens 1- 2010 . 80% IP.