INTRODUCTION TO TRANSACTIONS The TUP and ISUP protocols (Chapters 9 and 11) are SS7 protocols for trunkrelated exchange actions (mainly call control). The SS7 signaling takes place between the exchanges at the ends of a TUP or ISUP trunk. Starting with this chapter, the focus is on SS7 signaling for operations that are not trunk-related. | Signaling in Telecommunication Networks. John G. van Bosse Copyright 1998 John Wiley Sons Inc. ISBNs 0-471-57377-9 Hardback 0-471-22415-4 Electronic INTRODUCTION TO TRANSACTIONS The TUP and ISUP protocols Chapters 9 and 11 are SS7 protocols for trunk-related exchange actions mainly call control . The SS7 signaling takes place between the exchanges at the ends of a TUP or ISUP trunk. Starting with this chapter the focus is on SS7 signaling for operations that are not trunk-related. DEFINITIONS AND APPLICATIONS Definitions Remote Operation. This is an operation that is not trunk-related and is executed by one signaling point SP at the request of another SP. Transaction. This is a dialogue consisting of signaling messages between two SPs for the execution of one or more remote operations 1-3 . Transactions can involve two exchanges an exchange and a network database an exchange and a maintenance center etc. Applications Transactions are the successors of the direct signaling procedures of commonchannel interoffice signaling CCIS see Section . The applications of present-day transactions fall into several groups 380 SS7 ARCHITECTURE FOR TRANSACTIONS 381 Intelligent Network Services such as 800 and 900 calls . For these calls an exchange needs to query a network database to obtain a routing number that corresponds to the received 800 or 900 number . Intelligent network IN services are discussed in Chapter 16. Services for Mobile Telecommunications 3 . As one example transactions are used to keep track of the present location of each active mobile station MS . This information is used when routing a call to a MS. Services for mobile telecommunications are described in Chapter 17. Centralized Operation Administration and Maintenance OAM of a telecommunication network where an OAM center uses transactions to verify and change the data stored in exchanges to request a test of network equipment etc. Bulk Data Transfer for example the daily .
