Microsoft® Lync® Server 2013 Unleashed Second Edition

Standard Edition Versus Enterprise Edition

For those migrating from Office Communications Server 2007 R2, the licensing situation around Directors and high-availability was always a confusing topic. In Office Communications Server 2007 an administrator had the option to deploy both Standard Edition and Enterprise Edition Directors, which caused some confusion around deployment methods and licensing. Back then, Directors could be deployed either as an array of multiple Standard Edition Front Ends, or as a pool of multiple Enterprise Edition servers with a dedicated back-end SQL server database. These options were simplified with Office Communications Server 2007 R2, and the only option for Director high-availability was a pool of Enterprise Edition ...