Amazon.com Books Acknowledgement

     Amazon.com is pleased to have Ralph's ISDN Tutorial in the
     family of Amazon.com associates.  We've agreed to ship books and
     provide customer service for orders we receive through special
     links on Ralph's ISDN Book Store.

     Amazon.com associates list selected books in an editorial context
     that helps you choose the right books.  We encourage you to visit
     Ralph's ISDN Book Store often to see what new books they've
     selected for you.

     Thank you for shopping with an Amazon.com associate.

                 Jeff Bezos
                 President
                 Amazon.com Books

     P.S.  We guarantee you the same high level of customer service
     you would receive at Amazon.com.  If you have a question about
     an order you've placed, please don't hesitate to contact us.