This is a 3-day entry-level course that begins with the basic concepts of IP telephony and very quickly moves the learner forward into an understanding of the Cisco Unified Communication Manager concepts: clustering, route plans, digit manipulation,media resource, and Cisco Unified Communication Manager features, all of which are important in supporting IP telephony in the enterprise network. This course is designed for individuals that will be using and managing the system and performing administration at Level 1 and Level 2 support levels. Level 1 supports phone users, makes moves, adds, and changes to the desktop phone environment. Level 2 supports changes in the organization, such as opening new office locations or relocating departments. This course does not cover issues of initial deployment, new cluster deployment or international deployments, orissues with the underlying network that involve routers, switches, or Cisco IOS software configuration. This course includes lab exercises that allow you to apply what was learned in each preceding lesson. Labs begin with a newly installed publisher and subscriber. The only element that is preconfigured is two MGCP gateways, for the headquarters (HQ) and branch (BR), and an intercluster trunk pointing to the neighbor’s pod. Thus allowing the student to become familiar with all the various concepts through configuration of the elements in the lab environment.