So Just What is Sync University? Sync University has been developed in response to the telecom industry's long-standing need for a viable source of information on the art and science of network synchronization. This subject frequently receives much less attention than it deserves in today's telecom networks, based primarily on the advent of wireless IP or digital television; and because to network operators it is not a revenue-generator, rather it is a necessary cost of doing business. The job of incorporating synchronization into a network and its ongoing maintenance typically falls onto the engineering staff who have many other responsibilities, but who have limited time to absorb new knowledge before a crisis requires that knowledge. This state of affairs is not helped by the fact that the basics of network synchronization are deceptively simple, but the details can be surprisingly complex. Until now there has been plenty of information available about various aspects of network synchronization, but it is not found in a single accessible source; instead, the information is distributed among many sources in an unorganized way. Sync U will fill the need for a centralized compendium of information which may be accessed easily and studied as time allows, with feedback for gauging the student's progress, and opportunities for sending questions and comments to the faculty. The material we present in Sync U is intended to provide engineering staff, and others with an interest or need, an understanding of the underlying philosophies and techniques of network synchronization; and allow them to apply this in an effective way to their own particular sync environment. Our objectives can be summarized as follows: To raise awareness of the importance of effective synchronization in telecom networks To explain the rationale for operating the telecom network as a synchronous matrix To provide an understanding of the fundamental mechanisms and specific techniques which lead to effective synchronization To present planning guidelines for successfully engineering synchronization in an evolving network. To provide a forum for questions, examples, etc., and a source of references to related material