SIP Trunking 1st Edition

This is a great book if you want to understand and plan your enterprise move to SIP trunking as a first step in your UC journey, including centralized and distributed architectures and selecting service offerings and service providers.It would have been perfect for me if it devoted more content to putting together the business case, including TCO, ROI, etc. as this is one of the main challenges related to adopting a new technology and securing the budget for it.I would also have liked a bit more content on the design aspects of SIP trunking going up to a complex case of a large global enterprise centralizing their call management into infrastructure located in 2 or 3 different Data Centers around the world.Finally, I feel that this book requires one more round from the editors as I found a few errors here and there, missing words and even a duplicate sentence.Nonetheless, it is very close to what I was looking for in a book about SIP trunking.

Well written and concise - this book is a must read for anyone thinking about deploying SIP trunks. Addresses the process from both a business and a technical point of view.

If you work in Unified Communications in any capacity then this book will probably make you better at your job. In the very least, it'll help you understand your company's motivations to migrate from legacy solutions.

A very good text book even if you are noit getting certified it explains what is going and and why.

Very entry level for corporate IT staff looking for low level understanding.

This book is the right tool to have if you are investigating or are in the process to implement SIP trunk in your company. The book has a chapter that cover Cost Analysis between Sip trunk and TDM implementation that will help you to decide if your sip trunk approach will increase or decrease your current Telecom budget, The book also describe the main components of SIP trunk and how this can impact your current WAN network implementation, in addition, the book raise some awareness of bandwidth increase requirements for branch offices and headquarter locations and what you need to consider before start experience some Jitter and delay issues.The book have a complete chapter that cover the three implementation models expected in the enterprise, the benefits and concern about Centralized, Hybrid or Decentralized model are cover and explained in order to provide you better visibility and help you to decide the right model for your company. The book have a chapter that provide some considerations for the design and implementation but don't expect to understand this part if you don't have a technical background or knowledge about routers or Voice gateway configuration. You still can read it but you will have some problems understanding the technical information.The book have a complete chapter that will help you to elaborate the right questions to TELCO vendors (SIP Trunk provider) before you decide to sign the three years contract with the wrong vendor. The questions cover pretty much what you need to know and will educate you about what you can expect to get with this type of service. Project managers will love this chapter, especially if they don't have a Technical back ground and never hear about SIP trunks in the past.The last but not the least, the book cover two deployment scenario with two major vendors like AT&T and Verizon. The book assume that you have some type of Cisco Call Manager implementation and will walk you through for the expected configuration in the CUBE device (Voice gateway) to allow your CUBE to connect to CUCM and the Vendor equipment. The book will cover some scenarios where your CUCM implementation is old and the only option between your CUBE and CUCM is H323, this will allow some folks that still are running CUCM 4.x, 5.x or 6.x to still use the SIP trunk functionality.The conclusion, this book is very good reference for any sip trunk implementation even if you don't have any technical background but you want to be educated about the SIP Trunk technology.

Thanks

The authors of SIP Trunking have done an exceptional job. They take basic VOIP principles and build on them throughout the text, adding more layers in each chapter.Particularly helpful is Chapter 10 - Deployment Scenarios. This chapter give stellar examples for Enterprise and SMB deployments on Cisco platforms, even citing configurations for a couple of large US based carriers.Even if you're not deploying on a Cisco-centric platform this book gives a very solid foundation of SIP. A must have for anyone contemplating SIP in their environment.