From the Back Cover
Please note that, for this review, I did not read the entire book. I only read the chapters that got to the parts of SIP I needed to know for the task at hand. Read morePublished 13 months ago by Rita
This book is not for the programmer who wants to know how to program and debug SIP.
This book is for a manager or other interested party who needs to understand how SIP works... Read more
I did not realize this book was so old! Book is 11 years old. In the IT world this is pretty old. Haven't read it yet, but it's 11 year old info.Published on January 28, 2013 by TechieGirl
Great trade, thank you for shipping it. Though it took bit longer than expected, but i would blame the shipping company for it :-)Published on November 23, 2009 by Prashanth Patha
This is one of the worst books yet. There are spelling errors and grammer errors throughout the book. Nowhere in this book does the author talk about ENUM, DDDS or NAPTR. Read morePublished on July 8, 2006 by J. Singer
I thought this book was very helpful to understand the basic concepts of SIP.Published on October 18, 2004 by John Jones