I'll keep it short and sweet. I am one of the authors of SIP and
of many of its related technologies that are discussed in
this book. As such, I am frequently asked by people how they
can quickly understand the benefits of SIP technology, why
it is important to them, and what it can enable. The answer is
simple - read the Sinnreich/Johnston book. The book helps you
understand how SIP, its extensions, and related technologies
all fit together, and why SIP is revolutionizing communications.
This is a fabulous piece of work, written by two recognized
leaders. I highly recommend it.

This book is wonderful because this is not a textbook for SIP protocol itsself but is a book representing what SIP being characterized and how different from other voip protocols and what we can do using SIP focusing to the INTERNET COMMUNICATION not just voice over IP nor video over IP. This book is very helpful when we systems engineers propose our customer what additional applocation services can be provided by the system using SIP.

I've been involved in the development of the SIP specification for several years, and currently co-chair the Internet Working Groups overseeing its continued evolution. I'm closely involved with the application of SIP to next-generation mobile phone networks. Between standards work and speaking on SIP frequently at trade shows and conferences I've seen a lot of SIP books and tried to explain SIP to many people. Most of the books on SIP cover the dry technical details of the specification and implementations. This book, "Internet Communications Using SIP" goes into an entirely different realm.

Henry Sinnreich and Alan Johnston are two of the most knowledgeable authorities and notable figures in the SIP world. I expected a lot from them them. They've greatly exceeded my expectations, doing a surprisingly good job of explaining WHY the SIP protocol works the way it does, WHAT sort of advanced services it is making possible, and HOW service providers can use it to enrich their business offerings.

This book is an absolute "must read" for anyone in the industry, especially for people familiar with traditional telephony who are trying to design, market, or implement new telecom services of any kind. If you haven't read this book and Gonzalo Camarillo's new SIP book, don't argue with the old-timers on the SIP mailing lists -- they're likely to just tell you to "RTFB" . . . and this is one of the books they're referring to.

Mustang:Wild Spirit of the West is a good story about a girl who loves horses all of her life. When she grows up, she tries to stop the killing of wild mustangs. It is a story that I'm sure you would enjoy.

When I was in Elementary School, I read all of the books in the school library that had to do with horses. Of all of them, this was my favorite. I've remembered it until today when I decided to refresh my memory from 7 years ago. I think it's so neat that books like this can stay with you and impact your outlook after so many years. This is such a beautiful and inspiring story, I would recommend it to anyone and everyone.

I first read the book in sixth grade for a book report. One of my friends said I should read it because my name is Annie, too. The aspect I like most about it was the fact that it the hero was a woman, and she fought with courage and determination for something that she believed was right.