If you are a JavaScript developer with a basic knowledge of WebRTC and software development, but want to explore how to use it in more depth, this book is for you.

FreeSWITCH is an open source carrier-grade telephony platform designed to facilitate the creation of voice, chat, and video applications, via phones and web browsers. It is scalable, carrier-ready, and easy-to-program for converged communication and VoIP. The technology serves SIP, WebRTC, PSTN, FAX, PBX, VERTO, and all the relevant channels essential to stay connected in today's world. In the FreeSWITCH 1.6 Cookbook, members of the FreeSWITCH development team share some of their hard-earned knowledge with you. Use this knowledge to improve and expand your FreeSWITCH installations.

The book begins by teaching you how to capture audio and video streams from the browser using the Media Capture and Streams API. You will then create your first WebRTC application capable of audio and video calling. The book will also give you in-depth knowledge about signaling and building a signaling server in Node.js. While being introduced to the RTCDataChannel object, you will learn how it relates to WebRTC and how to add text-based chat to your application. You will also learn to take your application further by supporting multiple users through different technologies and scale its performance and security. This book will also cover several theories using full mesh networks, partial mesh networks, and multipoint control units. By the end of this book, you will have an extensive understanding of real-time communication and the WebRTC protocol and APIs.

Over 40 recipes to help you create real-time JavaScript applications using the robust Socket.IO framework About This Book Create secure WebSocket connections and real-time mobile applications using Socket.IO Devise efficient messaging systems between the server side and the client side A step-by-step implementation guide to help you create elements of Socket.IO application Who This Book Is For If you have some knowledge of JavaScript and Node.js and want to create awe-inspiring application experiences using real time communication, then this book is for you. Developers with knowledge of other scripting languages should also be able to easily follow along. What You Will Learn Build rich and interactive real-time dashboards using Socket.IO to pipe in data as it becomes available Design chat and multiple-person interfaces that leverage Socket.IO for communication Segment conversations to rooms and namespaces so that every socket doesn't have to receive every message Secure your data by implementing various authentication techniques, locking down the HTTP referrer and using secure WebSockets Load balance across multiple server-side nodes and keep your WebSockets in sync using Redis, RabbitMQ or Memcached Stream binary data such as audio and video in real-time over a Socket.IO connection Create real-time experiences outside of the browser by integrating Socket.IO with hybrid mobile applications In Detail Socket.IO is a JavaScript library that provides you with the ability to implement real-time analytics, binary streaming, instant messaging, and document collaboration. It has two parts: a client-side library that runs in the browser, and a server-side library for node.js. Socket.IO is event-driven and primarily uses the WebSocket protocol that allows us to emit data bi-directionally from the server and the client. Socket.IO This book is a complete resource, covering topics from webSocket security to scaling the server-side of a Socket.IO application and everything in between. This book will provide real-world examples of how secure bi-directional, full-duplex connections that can be created using Socket.IO for different environments. It will also explain how the connection vulnerabilities can be resolved for large numbers of users and huge amounts of data/messages. By the end of the book, you will be a competent Socket.IO developer. With the help of the examples and real-world solutions,you will learn to create fast, scalable, and dynamic real-time apps by creating efficient messaging systems between the server side and the client side using Socket.IO. Style and approach This book is written in a cookbook-style format and provides practical, immediately usable task-based recipes that show you how to create the elements of a Socket.IO application.

Microsoft Teams is used in hundreds of thousands of organizations to help keep remote and hybrid workplaces with dispersed workforces running smoothly. But while Microsoft Teams can seem easy for the user, Teams administrators must stay on top of a wide range of topics, including device administration techniques, quality benchmarks, and security and compliance measures. With this handy cookbook, author Fabrizio Volpe provides a clear, concise overview of administrative tasks in Teams-along with step-by-step recipes to help you solve many of the common problems that system administrators, project managers, solution architects, and IT consultants may face when configuring, implementing, and managing Microsoft Teams. Think of this book as a detailed, immensely practical cheat sheet for Microsoft Teams administrators. Recipes in the book will show you how to: Apply Teams best practices, compliance, and security Automate administrative tasks Successfully deploy Teams Implement Teams collaboration Deploy and manage Microsoft Teams Rooms Leverage the monitoring, productivity, and accessibility features Foresee roadblocks in migrations to Teams and Teams Voice Optimize Teams on virtual machines

This book is aimed at those who want to learn how to set up an Elastix Unified Communications Server without losing ground on Unified Communications and Voice over IP.