{"product_id":"9781449332457","title":"Asterisk: The Definitive Guide: The Future of Telephony Is Now","description":"\u003cp\u003eDesign 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.\u003c\/p\u003e\u003cp\u003eIdeal 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.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIntegrate Asterisk with analog, VoIP, and digital telephony systems\u003c\/li\u003e\n\u003cli\u003eBuild an interactive dialplan, using best practices for more advanced features\u003c\/li\u003e\n\u003cli\u003eDelve into voicemail options, such as storing messages in a database\u003c\/li\u003e\n\u003cli\u003eConnect to external services including Google Talk, XMPP, and  calendars\u003c\/li\u003e\n\u003cli\u003eIncorporate Asterisk features and functions into a relational database to facilitate information sharing\u003c\/li\u003e\n\u003cli\u003eLearn how to use Asterisk’s security, call routing, and faxing features\u003c\/li\u003e\n\u003cli\u003eMonitor and control your system with the Asterisk Manager Interface (AMI)\u003c\/li\u003e\n\u003cli\u003ePlan for expansion by learning tools for building distributed systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"O'Reilly Media, Incorporated","offers":[{"title":"Default Title","offer_id":47143188660464,"sku":"9781449332457","price":27.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781449332457_p0.jpg?v=1763838667","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781449332457","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}