Talk:ISDN digital subscriber line

Copyvio concerns
When I search on google for a number of phrases within this article, it turns up a page from google books, from the Internetworking Technologies Handbook (Cisco Systems). This seems suspicious. I apparently don't have access to see the page of the book, but I wonder if the last few paragraphs are in violation of the copyright of this book? See searches: --David Edgar (talk) 15:42, 27 October 2008 (UTC)