Technical Session 1: Middleware and Supportive Services.- Identity as a Service – Towards a Service-Oriented Identity Management Architecture.- Towards a Context Binding Transparency.- A Context Middleware Using an Ontology-Based Information Model.- Technical Session 2: Context-Awareness.- Providing Movement Information to Applications in Wireless IPv6 and Mobile IPv6 Terminals.- Towards a Rule-Based Approach for Context-Aware Applications.- Semantic Context Reasoning Using Ontology Based Models.- Technical Session 3: Voice over IP.- VoIP Codec Adaptation Algorithm in Multirate 802.11 WLANs: Distributed vs. Centralized Performance Comparison.- Decentralized Supplementary Services for Voice-over-IP Telephony.- Analysis of Techniques for Protection Against Spam over Internet Telephony.- Technical Session 4: User Behavior, Security and Legal Aspects.- A Reputation-Based Approach for Securing Vivaldi Embedding System.- Source Traffic Characterization for Thin Client Based Office Applications.- Legal Compliance in Commercial Service Provisioning Across Administrative Domains.- Technical Session 5: Performance Aspects.- Measurement of the SIP Parsing Performance in the SIP Express Router.- A Novel Loop-Free IP Fast Reroute Algorithm.- A Simulation-Based Study of TCP Performance over an Optical Burst Switched Backbone with 802.11 Access.- Technical Session 6: Novel Architectures.- Towards Policy-Supported Adaptable Service Systems.- An Architecture for the Self-management of Lambda-Connections in Hybrid Networks.