nnelling Contents 6.12 Confidentiality and Integrity by IPsec Confidentiality and Integrity for Mail by S/MIME Applications and Solutions Summary with IPsec and FP Focus Quality of Service 7.1 Objective 7.2 Introduction Perception of QoS Threats to QoS QoS Enablers QoS at the Application Level Implementation of QoS in UMTS Service Implementation Objectives Chapter Structure Target Network Development Tracks Introduction to Packet Design The Role of Fundamental Technical Plans in Packet Design Top-Down Approach to Packet Design Specific Fundamental Technical Plans Convergence Between Fundamental Technical Plans Traffic Cases Service Network Objectives Connection to Preceding Chapters What is a Service Network? Service Network Domain and Principles Terminology The Architecture of Service Networks The Needs of the User Domain The Needs of the Service Network Owner Service Network Implementation The (IP) Service Network Support Entities Examples of Service Implementation 10 Terminals What is a Terminal? 10.2 Business Aspects 10.3 History 10.4 Terminals for Mobile Networks 10.5 PDA Development 10.6 Terminal Convergence 10.7 The Changing Role of Terminating Devices What is a Customer Premises Network? Some Enablers Contents 10.10 Terminal Functionality - Example 10.11 The Future 11 Edge Nodes 11.1 Introduction 11.2 Access and Backbone Networks 11.3 MGW Interfaces 11.4 Media Gateway Tasks 11.5 Summary 12 Packet Backbone 12.1 Objectives Service Plan versus Packet Backbone Capacity Development Control Functions in the Packet Backbone The Distributed Dimension 12.6 Traffic 12.7 ATM Solutions 12.8 IP Routing 12.9 IP QoS 12.10 Multi Protocol Label Switching (MPLS) 12.11 Multi-Layer Control 13 Access Network 13.1 Objectives 13.2 Introduction What is an Access Network? Access System Fragmentation 13.5 Unification 13.6 The Distributed Dimension 13.7 The Layered Dimension 13.8 Fundamental Plans in Access Networks 13.9 Mobility 13.10 Access Technologies in Mobile Networks 13.11 System Evolution 13.12 Fixed Systems 13.13 Fibre-Bas