Addresses the service quality support technologies needed to deliver different types of content over an IP network, and identifies the steps needed to create and manage services in a multi-service IP network. The author (Nokia Networks, Finland) compares the statistical service quality support model of differentiated services (DiffServ) with integrated services (IntServ) and asynchronous transfer mode (ATM), and describes the role of measurements and service level agreements within a traffic engineering framework. A case study of an IP-based radio access network (RAN) demonstrates how the pieces fit together. Annotation (c)2003 Book News, Inc., Portland, OR