Asterisk Gateway Interface 1.4 and 1.6 Programming

Using the open source Asterisk platform, you can deploy a state-of-the-art VoIP PBX on a low-cost PC or server for a fraction of the cost of conventional PBX systems. The only drawback to Asterisk is its notoriously poor documentation. Practical Asterisk 1.4 and 1.6 is the solution to that problem. This book provides all the detailed, real-world, ground-level information you need to plan, install, configure, and reliably operate Asterisk in any environment. This tutorial and reference systematically introduces each of Asterisk's key building blocks and shows how to use them to implement a full spectrum of communications solutions, from conferencing to call queuing, voicemail and fax to IVR. Leading Asterisk consultants Stefan Wintermeyer and St...

The Linux Programming Interface is the definitive guide to the Linux and UNIX programming interfacethe interface employed by nearly every application that runs on a Linux or UNIX system.In this authoritative work, Linux programming expert Michael Kerrisk provides detailed descriptions of the system calls and library functions that you need in order to master the craft of system programming, and accompanies his explanations with clear, complete example programs.You'll find descriptions of over 500 system calls and library functions, and more than 200 example programs, 88 tables, and 115 diagrams. You'll learn how to: Read and write files efficiently Use signals, clocks, and timers Create processes and execute programs Write secure programs Write multi...

Create powerful front-end interfaces for your web applications with jQuery UI. This book is for front-end designers and developers that need to quickly learn how to use the jQuery UI User Interface Library. To get the most out of this book you should have a good working knowledge of HTML, CSS and JavaScript, and will need to be comfortable using jQuery, the underlying foundation of jQuery UI....