In this chapter, the example and sample walk through the "Office Communications Server 2007 Planning Guide" should help you become familiar with the information provided by the Planning Guide. The reader aids contain useful tips and tricks to help you find practical ways through your deployment planning. The designed infrastructure contains lots of resources for future usage because its design is optimized for performance and reliability. To reduce complexity, additional server roles such as the Update Server for Office Communicator Phone Edition or the Monitoring Server for Quality-of-Experience have not been described.