Conducting, Administration, and Consultation on Commercial IP Telephony Solutions Written by four Asterisk Professionals, this book brings their many years of experience together in an easily understandable guide to work with Asterisk in small, medium and large Commercial environments.Packed with instructions, tips, and best practices - learn to avoid the pitfalls that can hinder Asterisk is a chapter implementation.Focused provide thorough, comprehensive, and independent instructions on how to use Asterisk in a different commercial scenarios. Real world, however, offers a variety of obstacles when running Asterisk in a commercial environment, including call routing, security, or to integrate Asterisk with other systems. This book will show you several ways to overcome this problem. As a follow-up was very successful Packt's 2005 title Building Telephony Systems with Asterisk, this book presents the collected wisdom of Asterisk Professionals in the commercial environment. Aimed at administrators and Asterisk Consultant comfortable with the basics of operation and installation of Asterisk, this book covers various topics such as hand-Call Routing, Network Considerations, scalability, and resilience - all while providing practical solutions and advice. Runs on Linux, has continually shown its resilience, stability, and scalability and is now a choice of advanced communication solutions to many organizations and consultants. With a foreword by Mark Spencer, the man behind Asterisk, this book presents the wisdom accumulated from three leading Asterisk Consultant and shows readers how to get the most out of Asterisk in a commercial environment. Convey their knowledge will prove informative, thought provoking and enduring interest to professionals Asterisk. What you will learn from this book? Master advanced dial plans, call routing considerations, and speech technologies.Learn all about AGI, AMI, ENUM, and DUNDi.Discover how to build an Asterisk-based solution for enterprise-scale mission-critical applications.Discover DAHDI framework, and how replacing Zaptel . Understand how to apply the techniques of localization and adaptation in different territories.Learn Asterisk how to interface with analog and digital telephone systems, and wireless technologies.Appreciate what you should do as a professional Asterisk when assessing customer needs, Quality of Service, pitching for business , and best practices support.Understand customers through code examples and detailed comments. Who is this book written for? Primarily aimed at Asterisk Professional, this book provides real-world insight for Network and Systems Administrator Asterisk Implementer in a commercial environment.