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Conventional signalling systems, such as Q.931 and Q.2931, have grown from simple techniques for creating a single connection between two parties. However, with the B-ISDN, it will be desirable to be able to construct multiparty, multiconnection calls for multimedia services. Chapter 14 highlights the work of the collaborative project 'RACE MAGIC' to develop a new object-based signalling protocol to meet these requirements, and describes how this new protocol overcomes the shortcomings of conventional signalling. The concepts outlined in this chapter have been used to influence the development of the broadband signalling protocols for advanced services. [ABSTRACT FROM PUBLISHER]

The separation of call and bearer to support future teleservices and services in broadband networks is outlined in Chapter 15. Various mechanisms to undertake the separation are considered, and the method chosen by ITU and ETS is described in detail. A full protocol model for broadband access signalling is derived and explained through the basic steps leading to the establishment of an association between end points supporting call control information flows. The call control protocol is outlined and illustrated by information flows. [ABSTRACT FROM PUBLISHER]

Chapter 2 provides an overview of the concepts of protocols and signalling. The different types of signalling are discussed, and the chapter introduces access signalling and Signalling System number 7 (SS7). The link layer (signalling ATM adaptation layer at the User-Network Interface (UNI) and the Network Node Interface (NNI)) services and primitives are described, with the principles of the SS7 broadband message transfer part 3 (MTP-3B). [ABSTRACT FROM PUBLISHER]

Chapter 4 briefly describes the network capabilities that B-ISDN should support, and how they have been derived from a representative sample of user applications principally proposed by the International Telecommunications Union-Telecommunications standardisation sector (ITU-T), the European Telecommunications Standards Institute (ETSI) and the Digital Audio-Visual Council (DAVIC). The identification of the required network capabilities is the first step towards the specification of signalling protocols for the B-ISDN which must be flexible enough to support the wide range of current and future advanced applications and services. One such potential future B-ISDN application, which demonstrates the range of signalling functionality required, is the 'Travel Agent Service' which is examined in detail. [ABSTRACT FROM PUBLISHER]

The access signalling protocols that provide the release 1 signalling mechanism, known as Digital Signalling System No.2 (DSS 2), are described in Chapter 5. In addition to identifying the functions that are required to be incorporated in a signalling protocol to support call/connection establishment, in-call control and clear down for a basic point to point call, the extensions required for support of type 2 connections are also described. The chapter then considers further extensions that have been produced to enable the negotiation, modification and look ahead capabilities in relation to the connection in order to provide the Capability Set 2 Step 1 DSS 2 signalling mechanism. [ABSTRACT FROM PUBLISHER]

Chapter 6 reviews the current status of the relevant protocols and their scope, and explores the issues related to their interworking. The role of the ATM Inter-Network Interface (AINI), on which development started during 1996, is discussed as an alternative inter-network or inter-carrier interface to the Broadband Inter-Carrier Interface (B-ICI). [ABSTRACT FROM PUBLISHER]

The P-NNI really consists of two parts: a signalling protocol based around the ATM Forum's UNI signalling specification; and a dynamic source routing protocol. Chapter 7 provides an overview of the functionality and mechanics of P-NNI, and compares it with the functionality offered by the ITU-T's Broadband Integrated Services User Part (B-ISUP). [ABSTRACT FROM PUBLISHER]