Fixed/Mobile Convergence and Beyond Unbounded Mobile Communications Richard Watson AMSTERDAM BOSTON. HEIDELBERG LONDON <S> NEW YORK. OXFORD PARIS SAN DIEGO SAN FRANCISCO SINGAPORE SYDNEY. TOKYO ELSEVIER Newn.es is an imprint of Elsevier Newnes
Contents Foreword Preface Acknowledgments Chapter 1: Unbounded Mobile Communications 1 1.1 Communication Knits Societies Together 1 1.2 The Business Value of Mobility 3 1.3 Unbounded Mobile Communication Concepts 4 1.4 UMC: What Is Needed? 5 1.5 Are the Technologies Ready? 7 1.6 What UMC Market Forces Are at Work? 12 1.7 Convergence in the Market 13 Chapter 2: Mobile Communications: State of the Technology 17 2.1 Wide Area Wireless 19 2.2 Wireless LANs 24 2.3 Clarifying Popular UMC Product Terms 26 2.4 Are Customers and Vendors Ready for UMC? 32 2.5 Analyst Predictions for UMC 33 2.6 The Market Is Ready for UMC 35 Chapter 3: Unbounded Mobile Communications: What Is It? 37 3.1 What Problem Does UMC Solve? 37 3.2 Whose Problem Does UMC Solve? 38 3.3 A UMC Agnostic Approach 41 3.4 UMC Handover Logic 42 3.5 UMC Alternatives 46 3.6 The Mobile Enterprise 47 ix xi xv
vi Contents Chapter 4: UMC: An Overview of Technology Requirements and Considerations 49 4.1 Mobile Handset Requirement 50 4.2 Wireless LAN (WLAN) Requirement 56 4.3 Voice-Optimized Ethernet Considerations 60 4.4 Wide Area Wireless Considerations 60 4.5 VoIP Requirement 62 4.6 Hotspot and Hotzone Support 64 4.7 PBX/iPBX Integration Considerations 65 4.8 Network Security Considerations 65 4.9 Solution Management Considerations 67 Chapter 5: UMC: Current Market Solution Overview 73 5.1 Market Drivers for Mobile Communications 73 5.2 Cellular Solutions Cover All Outdoors 74 5.3 WiFi Solutions Cover Indoors 74 5.4 UMC Carrier-Centric Architectures 75 5.5 UMC Enterprise-Centric Architectures 80 5.6 ROI Models and Solution Trends 81 5.7 WLANAnternet vs. Cellular: A Commercial Battleground 84 Chapter 6: UMC: Layer 1 and 2 Media Requirements 89 6.1 A Bit of History 89 6.2 Cellular Networks 91 6.3 WLAN/802.11 Networks 95 6.4 IEEE 802.16/WiMAX: The Future Looming 110 6.5 ISM Interference Considerations 112 Chapter 7: VoIP: Layers 3 and 4, the IP Infrastructure 7 73 7.1 VoIP: An Introduction 113 7.2 Voice-over-IP Protocols 114 7.3 Real-Time Protocol (RTP) 125 7.4 VoIP Everywhere? 125 7.5 Commercial Consumer VoIP Services 126 Chapter 8: Voice-Optimized Networks: The Network Orphan 729 8.1 General Network Optimization Considerations 129 8.2 Shared Media Allocation 132 8.3 Converged Media Prioritization 134 8.4 Network Congestion Management Readiness: A Summary 140
Contents vii Chapter 9: Mobile Handset Solutions 743 9.1 Dual-Mode Handset Landscape 143 9.2 Determine Your Mobile Handset Requirements 154 Chapter 10: Hotspot and Hotzone Access 757 10.1 Wireless Internet Service Provider (WISP) v Access Considerations 160 10.2 The Hotspot LANscape 160 10.3 Hotspot Use Models 161 10.4 Impact of Convergence 162 10.5 Hotspot Security Considerations 163 10.6 Application Barriers for Hotspots 164 10.7 Future Wireless Freedom in Hotspots 166 10.8 A Bright Hotspot Future 169 Chapter 11: Security Considerations 777 11.1 UMC Security Considerations: A View of the Landscape 171 11.2 Cellular Security: An Overview 172 11.3 WLAN Security: An Introduction 172 11.4 Security Implementation Options 178 11.5 Balancing Security with QoS 181 11.6 Multi-AAA Authority Overview 182 11.7 UMC Registration and Security Considerations 183 Chapter 12: PBX Features and Integration 185 12.1 PBX Features: An Introduction 185 12.2 PBX Integration Challenges 191 12.3 Integrated Solutions 193 12.4 PBX and ipbx Interoperability Future 194 12.5 UMC Feature Supplementary Service Requirements 195 12.6 Network-Specific Implementation Challenges 199 12.7 PSTN Interconnect Options 201 Chapter 13: UMC Management and Statute Conformance Considerations 203 13.1 AAA Management Requirements 204 13.2 Physical Security Concerns 205 13.3 UMC Policy Management 206 13.4 CALEA/Lawful Intercept Support 207 13.5 HIPAA: Healthcare Considerations 209 13.6 E911 /Emergency Response Support 210 13.7 Securities Exchange Commission Considerations 213
viii Contents 13.8 Presence Management 213 13.9 Cost-Control Policies 214 Chapter 14: Mobilizing Applications 219 14.1 Telephony/Email 219 14.2 Instant Messaging/SMS 220 14.3 Push-to-Talk 221 14.4 Wireless Video: Monitoring and Conferencing 222 14.5 Vertical Market Opportunities 222 14.6 Mobile Location-Based Services 223 14.7 Mobile Application Summary 224 Chapter 15: The Final Challenge: Sales/Support Channel Considerations 225 15.1 What Drives UMC Sales? 225 15.2 The UMC Purchase Challenge 228 Chapter 16: Unbounded Mobile Communications: Beyond FMC 239 16.1 Nothing But Change in the Future 239 16.2 Handset Evolution 240 16.3 Major Technology Changes 241 16.4 Presence in the Future 247 16.5 Major Vendor Trends 248 16.6 UMC: FMC and Beyond 249 Glossary 251 Index 257 -