<DIV><p>Design a complete Voice over IP (VoIP) or traditional PBX system with Asterisk, even if you have only basic telecommunications knowledge. This bestselling guide makes it easy, with a detailed roadmap that shows you how to install and configure this open source software, whether you’re upgrading your existing phone system or starting from scratch.</p><p>Ideal for Linux administrators, developers, and power users, this updated edition shows you how to write a basic dialplan step-by-step, and brings you up to speed on the features in Asterisk 11, the latest long-term support release from Digium. You’ll quickly gain working knowledge to build a simple yet inclusive system.</p><ul><li>Integrate Asterisk with analog, VoIP, and digital telephony systems </li><li>Build an interactive dialplan, using best practices for more advanced features </li><li>Delve into voicemail options, such as storing messages in a database </li><li>Connect to external services including Google Talk, XMPP, and calendars </li><li>Incorporate Asterisk features and functions into a relational database to facilitate information sharing </li><li>Learn how to use Asterisk’s security, call routing, and faxing features </li><li>Monitor and control your system with the Asterisk Manager Interface (AMI) </li><li>Plan for expansion by learning tools for building distributed systems </li></ul></div>