VoIP is simply overflowing with hack potential, and “VoIP Hacks” is the practical guide from O’Reilly that presents these possibilities to you. It provides dozens of hands-on projects for building a VoIP network, showing you how to tweak and customize a multitude of exciting things to get the job done. Along the way, you’ll also learn which standards and practices work best for your particular environment. Among the quick and clever solutions showcased in the book are those for:

gauging VoIP readiness on an enterprise network

using SIP, H.323, and other signaling specifications

providing low-layer security in a VoIP environment

employing IP hardphones, analog telephone adapters, and softPBX servers

dealing with and avoiding the most common VoIP deployment mistakes

In reality, “VoIP Hacks” contains only a small subset of VoIP knowledge-enough to serve as an introduction to the world of VoIP and teach you how to use it to save money, be more productive, or just impress your friends. If you love to tinker and optimize, this is the one technology, and the one book, you must investigate.