... http://www.softswitch.org 8. K. H. Lee, K. O. Lee, K. C. Park - Architecture to be deployed on strategies of Next Generation Networks, IEEE Communication magazine, 2003. 9. Uyless Black - Voice over IP, Prentice ... NGN are addressed. The second one is for the introduction of Bac Ninh's MAN-E network on general structure, on specified data also at the whole located nodes (bandwidths, ring loops, users,...