Lync Server 2013 Unleashed is the most comprehensive, realistic, and useful guide to Microsoft Lync Server 2013, today's leading Unified Communications system. A team of expert Lync consultants and implementers bring together in-the-trenches guidance for all facets of planning, integration, deployment, and administration. The authors first introduce Microsoft Lync Server 2013 and show how it represents a powerful leap beyond earlier unified communications platforms. They systematically cover every form of communication Lync Server can manage, including IP voice, instant messaging, audio/video conferencing, web conferencing, and more. You'll find expert guidance on planning infrastructure, managing day-to-day operations, server roles, multi-platform clients, security, troubleshooting, and much more. This edition contains an entirely new section on Office 365 and Lync Online, including a full chapter covering coexistence between on-premise and Office 365 Lync deployments, and another introducing Lync online configuration and administration. Drawing on their extensive experience, the authors combine theory, step-by-step configuration instructions, and best practices from real enterprise environments. They identify common mistakes and present proven solutions and workarounds. Simply put, this book tells you what works - and shows you how to make it work.