1	http://www.google.co.jp/search?hl=ja&ie=UTF-8&q=400+Extension+SIP&lr=lang_ja
1	http://www.google.co.jp/search?q=SIP+BNF+%E7%B6%B2%E7%BE%85%E6%80%A7&btnG=Google+%E6%A4%9C%E7%B4%A2&hl=ja&ie=UTF-8
1	http://66.102.7.104/search?q=cache:HsTCXZS473UJ:suika.fam.cx/~wakaba/-temp/wiki/wiki%3F_charset_%3Deuc-jp%3Bmode%3DRandomJump%3Bmypage%3DHTML%252F%252F1992-11-21%3Bx-d%3D1081681144+%E9%80%9A%E4%BF%A1%E3%83%9B%E3%83%83%E3%83%97&hl=ja