On Mon, 3 Mar 2008 10:14:02 +0800, "NOC Ph" <nocph at aol.com> wrote: >This questions might annoyed experts. Please bear with me... “The journey of a thousand miles begins with a single step.” — Lao Tzu. Free PDF of "Asterisk: The Future of Telephony, Second Edition" http://downloads.oreilly.com/books/9780596510480.pdf