The Intelligent Network

This report examines the findings of a study by Bell Atlantic, IBM, and Siemens which investigated the role of the Intelligent Network in telecommunications. It considers current trends and future developments, on a national and international level. This report defines and describes the concept of the Intelligent Network and considers the operating requirements (including the hardware and software) and the types of service a network user can expect. Concepts, definitions, and terminology reflect the status of the Intelligent Network in 1988. Actual implementation may differ due to the constantly changing environment, new requirements, and experiences with existing solutions. The report is divided into six parts: Part 1 introduces the concept of the Intelligent Network, and describes elements common to alLIN services. It considers the application program and network management requirements, and provides examples of the hardware and software proposed for implementing the network. Parts 2 through 6 include detailed descriptions of specific IN services. In each part there is a functional service description and an application description. The reader is expected to have a general knowledge and understanding of existing telecommunication networks.

1. Overview of the Intelligent Network.- 1. The Intelligent Network.- 1.1 IN Architecture and Capabilities.- 1.1.1 IN Goals.- 1.1.2 IN Technical Overview.- 1.2 IN Definition.- 1.2.1 IN Elements.- 1.2.2 An IN Service Example.- 1.3 IN-User Programmability.- 1.4 IN Introduction Scenarios.- 1.4.1 The Model.- 1.4.2 Introduction Scenarios.- 1.5 IN Architecture Validation.- 2. Functional Characteristics Common to Selected IN Services.- 2.1 Overview.- 2.2 Methodology.- 2.3 Summary of Findings.- 2.4 Standards.- 2.5 Service Interaction.- 2.5.1 Service User.- 2.5.2 Service Subscriber.- 2.5.3 SMS Access Instrument.- 2.5.4 Network Operator.- 2.6 Billing.- 2.6.1 SSP.- 2.6.2 SCP.- 2.6.3 SMS.- 2.7 Service Logic.- 2.8 Databases.- 2.8.1 Size.- 2.8.2 Database Integrity Requirements.- 2.8.3 Location of Databases.- 2.8.4 Database Administration.- 2.9 Transaction Rate Estimates.- 2.9.1 Methodology.- 2.9.2 Transactions Between SMS and its Users.- 2.9.3 SMS-SCP Transaction Rates.- 2.9.4 SCP- SSP Transaction Rates.- 2.10 Measurement Requirements.- 2.10.1 SSP.- 2.10.2 SCP.- 2.10.3 SMS.- 2.11 Performance and Dynamic Requirements.- 2.11.1 Response Time.- 2.11.2 Response Times for IN Elements.- 2.11.3 Overload Handling.- 2.12 Availability Requirements and Objectives.- 2.13 National Considerations.- 2.14 Future Considerations.- 3. Network and Service Management.- 3.1 Overview.- 3.2 Methodology.- 3.2.1 Summary of Findings.- 3.3 NSMS Requirements.- 3.3.1 NSMS Global Qualities.- 3.3.2 Basic Operations, Administration and Management Functions.- 3.3.3 Network Management Users.- 3.4 Switching Layer and the OSS—an Example.- 3.5 Signaling Network and the SEAS.- 3.5.1 Management Functions Related to the Signaling Network.- 3.6 IN-Services and the SMS.- 3.6.1 Service Management System Overview.- 3.6.2 SMS Function Description.- 3.7 Administrative System Functions and IN Requirements.- 3.7.1 IN-Wide Service Management Examples.- 3.8 Trends.- 3.8.1 Evolving Operations Architecture.- 4. Network Components.- 4.1 Main Objectives of the IN Architecture.- 4.2 Network Topology.- 4.2.1 Performance and Throughput Requirements.- 4.2.2 Availability Requirements.- 4.2.3 IN Architecture.- 4.3 Service Control Point (SCP).- 4.3.1 Requirements.- 4.3.2 SCP Architecture.- 4.4 Signaling Transfer Point (STP).- 4.4.1 Functional STP Requirements.- 4.4.2 CCS7 Network Architecture and IN.- 4.5 Service Switching Point (SSP).- 4.6 Future Considerations.- 2. Green Number Service.- 5. GNS Service Description.- 5.1 Overview.- 5.2 Functional Description.- 5.3 Standards.- 5.4 Service Interaction.- 5.5 Billing.- 5.6 Service Logic.- 5.6.1 Distribution.- 5.6.2 Functional Flow.- 5.7 Traffic Measurement Requirements.- 5.8 Dynamic Requirements and Performance.- 5.9 National Dependencies.- 5.10 Future Considerations.- 6. GNS Application Description.- 6.1 Functional Requirements and Allocation.- 6.2 Functional Units in the EWSD SSP.- 6.3 Administrative Units in SSP.- 6.4 Functional Units in SCP.- 6.5 Administrative Units in SCP.- 3. Alternate Billing Service.- 7. ABS Service Description.- 7.1 Overview.- 7.2 Functional Description.- 7.3 Standards.- 7.4 Service Interaction.- 7.5 Billing.- 7.6 Service Logic.- 7.6.1 Distribution.- 7.6.2 Functional Flow.- 7.7 Traffic Measurements Requirements.- 7.8 Dynamic Requirements and Performance.- 7.9 National Dependencies.- 7.10 Future Considerations.- 8. ABS Application Description.- 8.1 Functional Requirements and Allocation.- 8.2 Functional Units in SSP.- 8.3 Administrative Units in SSP.- 8.4 Functional Units in SCP.- 8.5 Administrative Units in SCP.- 4. Emergency Response Service.- 9. ERS Service Description.- 9.1 Overview.- 9.2 Functional Description.- 9.3 Standards.- 9.4 Service Interaction.- 9.5 Billing.- 9.6 Service Logic.- 9.6.1 Distribution.- 9.6.2 Functional Flow.- 9.7 Traffic Measurement Requirements.- 9.8 Dynamic Requirements and Performance.- 9.9 National Dependencies.- 9.10 Future Considerations.- 10. ERS Application Description.- 10.1 Functional Requirements and Allocation.- 10.2 Functional Units.in SSP.- 10.3 Administrative Units in SSP.- 10.4 Functional Units in SCP.- 10.5 Administrative Units in SCP.- 5. Private Virtual Network.- 11. PVN Service Description.- 11.1 Overview.- 11.2 Functional Description.- 11.3 Standards.- 11.4 Service Interaction.- 11.5 Billing.- 11.6 Service Logic.- 11.6.1 Distribution.- 11.6.2 Functional Flow.- 11.7 Traffic Measurement Requirements.- 11.8 Dynamic Requirements and Performance.- 12. PVN Application Description.- 12.1 Functional Requirements and Allocation.- 12.2 Functional Units in SSP.- 12.3 Administrative Units in SSP.- 12.4 Functional Units in SCP.- 12.5 Administrative Units in SCP.- 6. Area Wide Centrex.- 13. AWC Service Description.- 13.1 Overview.- 13.2 Functional Description.- 13.3 Standards.- 13.4 Service Interaction.- 13.5 Billing.- 13.6 Service Logic.- 13.6.1 Distribution.- 13.6.2 Functional Flow.- 13.7 Traffic Measurement Requirements.- 13.8 Dynamic Requirements and Performance.- 13.9 National Dependencies.- 13.10 Future Considerations.- Appendix A. Supplementary Services.- Appendix B. Bellcore Preliminary-Defined Functional Components and Requests.