Asterisk: The Definitive Guide - Open Source Telephony for the Enterprise, Fifth Edition(English, Paperback, Jim Van Meggelen, Russell Bryant , Leif Madsen)
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All Indian Reprints of O'Reilly are printed in Grayscale.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.
