[...]... is one of the key concepts of the intelligent communication system The intelligent communication system provides a communication infrastructure for the development of communication services The goal of telecommunications is to provide a human-friendly communication environment whereby human beings, real or virtual, at different locations are brought together via the communication network and talk or... telecommunication fundamentals, telecommunication network structures, advances in telecommunication systems, information superhighways, and newly developed telecommunication systems In Chapter 1, IT, which is the convergence of information processing and telecommunication, is described By combining information processing technology with telecommunications, more human-friendly communication interfaces are...X INTELLIGENT COMMUNICATION SYSTEMS telecommunication description methods that are easy to use, and human-friendly telecommunication environments The intelligent communication system is a direct result of more than 10 years of industry experience, research activity, and education In this book, the fundamentals of the foregoing research areas are described For the research on telecommunication... integrated services digital network (ISDN) was built PREFACE XI In Chapter 5, several telecommunication systems, such as the data communication system, facsimile communication system, and videotex communication system, are described With progress in telecommunication and information technology, various kinds of telecommunication services have been developed and put into practical use In Chapter 6, the... gathered in the same real space Using the intelligent communication system, the communication system developers, the subscribers, and the communication service providers will receive the following benefits Communication system developers can implement the communication system by means of the easy-to-use description methods and tools Subscribers can interact with the communication system in a human-friendly... has been hierarchically structured There are toll switching (TS) systems and local switching (LS) systems When phone A calls phone B, the call is transmitted through LS-TS-TS-TS-TS-LS With advances in telecommunication network, the network structure became simple A two-layered structure S3 14 INTELLIGENT COMMUNICATION SYSTEMS FIGURE 3.1 Communication network structure, including LS and TS has been used... the numbering plan, and protocols, are described There are two connection methods: the connection type of communication and the connectionless type of communication Communication by telephone is a connection type of communication Communication by packet-switched network is a connectionless type of communication In this chapter, the numbering plan of telephone service is described By standardizing the... system that is a key component for constructing the intelligent communication system, In Chapter 9, the design methodology for telecommunication services is described AI theories, such as the state transition rule, graph theory, and predicate logic, are used for describing telecommunication services In Chapter 10, basic technologies of the intelligent communication system are described Network components... services, have been developed on the intelligent network At the same time, network architectural studies have been conducted In the future, more advanced systems and services will be implemented and put into practical use based on IN architecture 2 COMMUNICATION FUNDAMENTALS 2.1 CONNECTION-TYPE COMMUNICATION AND CONNECTIONLESS-TYPE COMMUNICATION The objective of communication is the interchange of... categorize telecommunication is into connectiontype communication and connectionless-type communication For connection-type communication, the source sends a message to its destination and receives acknowledgment from the destination By comparison, for connectionless-type communication, a source sends a message to its destination without acknowledgment The telephone is an example of connection-type communication . 74 CONTENTS Vii 8 Intelligent Communication Systems 79 8.1 Concept of Intelligent Communication Systems 80 8.2 Functions of the Intelligent Processing. class="bi x0 y0 w0 h0" alt="" INTELLIGENT COMMUNICATION SYSTEMS This page intentionally left blank INTELLIGENT COMMUNICATION SYSTEMS Nobuyoshi Terashima Graduate