 |  |  Elastix Unified Communications Server Cookbook
More than 140 real-life, hands-on recipes and tips to install, deploy, administer, and maintain any VoIP/Unified Communications solution based on Elastix
About This Book
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Enable a full cost-effective unified communications server solution
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Go from a single server configuration to a...
|  |  Asterisk 1.6Asterisk is a powerful and flexible open source framework for building feature-rich telephony systems. As a Private Branch Exchange (PBX), which connects one or more telephones, and usually connects to one or more telephone lines, Asterisk offers very advanced features, including extension-to-extension calls, queues, line trunking, call... |