Stefan Wintermeyer eBooks

A step by step guide to learn Ruby on Rails 5.0. It includes a basic tutorial for Ruby 2.3 and is written for programmers who know at least one other programming language and are familiar with HTML. It covers Active Record, Scaffolding, REST, Routing, Bundler, Test Driven Development, Cookies, Sessions, Action Mailer, I18n, Asset Pipeline, JavaScript, Caching, Templates and of course the new 5.0 features Action Cable and Active Job....

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...