Diff of NGN

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.
• Go to NGN.

- NTT東西、NGNサービスを個人に提供開始、3月31日から 
--  http://internet.watch.impress.co.jp/cda/news/2008/03/28/18994.html

- 【Question６】NTTのNGNはどんなしくみ？
--  http://itpro.nikkeibp.co.jp/article/COLUMN/20070125/259673/