ccs7 - General Telecom Common Channel Signalling System#7...

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770 00438 0590 VHBE Ed. 07 General Telecom Common Channel Signalling System #7 Handout
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770 00438 0590 VHBE Ed. 07 2 / 218 Status Released Change Note Short Title CCS #7 All rights reserved. Passing on and copying of this document, use and communication of its contents not permitted without written authorization from Alcatel.
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Contents 770 00438 0590 VHBE Ed. 07 3 / 218 Contents Preface 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Situation of CCS #7 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Classification of Signalling Systems. 13 . . . . . . . . . . . . . 1.2 Brief History of NNI - Signalling Systems. 15 . . . . . . . . 1.2.1 Analogue Signalling. 15 . . . . . . . . . . . . . . . . . 1.2.2 CAS Signalling. 15 . . . . . . . . . . . . . . . . . . . . . . 1.2.3 CCS #7 Signalling. 18 . . . . . . . . . . . . . . . . . . 1.3 Objectives and Fields of Application of CCS #7. 19 . . 2 General Principles and Definitions 23 . . . . . . . . . . . . . . . . . . . 2.1 Signalling Network Components 23 . . . . . . . . . . . . . . . . 2.2 Signalling Modes 28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Architecture 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 Architecture of CCS #7 31 . . . . . . . . . . . . . . . . . . . . . . . . 3.1.1 MTP 33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.2 User Parts 34 . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.3 SCCP 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 CCS #7 and the OSI Model 35 . . . . . . . . . . . . . . . . . . . . 3.3 Selection of most relevant Items. 36 . . . . . . . . . . . . . . . . 4 Message Transfer Part 37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1 MTP-1 38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1.1 Digital Signalling Data Links 39 . . . . . . . . . . 4.1.2 Analogue Signalling Data Links 40 . . . . . . . . 4.2 MTP-2 42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2.1 MTP-2 Functionality 42 . . . . . . . . . . . . . . . . . 4.2.2 Signal Units 43 . . . . . . . . . . . . . . . . . . . . . . . . . 4.2.3 MTP-2 Procedures 47 . . . . . . . . . . . . . . . . . . 4.3 MTP-3 68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.1 Introduction 68 . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.2 Signalling Message Handling functions 68 . 4.3.3 Signalling Network Management Functions 77 . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Signalling Connection Control Part 103 . . . . . . . . . . . . . . . . . . 5.1 Introduction 103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 General Coding Principles of SCCP Messages 104 . . . . . 5.2.1 Routing Label 106 . . . . . . . . . . . . . . . . . . . . . . . 5.2.2 Message Type Code 106 . . . . . . . . . . . . . . . . . . 5.2.3 Message Information 106 . . . . . . . . . . . . . . . . .
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Contents 770 00438 0590 VHBE Ed. 07 4 / 218 5.3 Global Title Translation. 109 . . . . . . . . . . . . . . . . . . . . . . . . 5.3.1 Addressing information 112 . . . . . . . . . . . . . . . 5.3.2 Protocol class 114 . . . . . . . . . . . . . . . . . . . . . . . 5.4 Provision of Connection-Oriented Services. 114 . . . . . . 5.4.1 Phases in a Connection-Oriented Setup. 114 5.4.2 Interface to an OSI Transport Layer Protocol 117 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4.3 SCCP Message Layout for Connection-Oriented Message Delivery 118 6 ISDN User Part 125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1 Introduction 126 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 General Coding Principles of ISUP messages 127 . . . . . . 6.2.1 The Routing label 128 . . . . . . . . . . . . . . . . . . . . 6.2.2 Circuit Identification Code (CIC) 129 . . . . . . . 6.2.3 Message Type Code 133 . . . . . . . . . . . . . . . . . . 6.2.4 Message Information 134 . . . . . . . . . . . . . . . . . 6.3 ISUP Messages 137 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3.1 Call Setup Messages 137 . . . . . . . . . . . . . . . . . 6.3.2 Call Release Messages 147 . . . . . . . . . . . . . . . 6.3.3 Suspend and Resume Messages 149 . . . . . . . 6.3.4 Continuity Messages 153 . . . . . . . . . . . . . . . . . 6.3.5 Confusion Message 154 . . . . . . . . . . . . . . . . . . 6.3.6 Facility Messages 155 . . . . . . . . . . . . . . . . . . . . 6.3.7 Access Related Messages 157 . . . . . . . . . . . . . 6.4 ISUP Parameters. 161 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.1 Parameters, mainly used in Call Setup Messages 161 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.2 Parameters, mainly used in a Call Release Messages 185 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.3 Parameters, mainly used in Suspend / Resume 186 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.4 Parameters, mainly used in Continuity Messages 187 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.5 Parameters, mainly used in Facility Messages 188 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.6 Parameters, mainly used in Access Related Messages 190 . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Transaction Capabilities Application Part 195 . . . . . . . . . . . . . 7.1 Functionality 195 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 Structure 199 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2.1 The Component Sub-layer 200 . . . . . . . . . . . 7.2.2 The Transaction Sub-layer 201 . . . . . . . . . . . . 7.3 Identification of an Operation 201 . . . . . . . . . . . . . . . . . . .
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Contents 770 00438 0590 VHBE Ed. 07 5 / 218 7.4 Primitives 201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Abbreviations 205 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary 211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix A References 215 . . . . . . . . . . . . . . . . . . . . . . . . . Request for Your Comments 217 . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 770 00438 0590 VHBE Ed. 07 6 / 218 Figures Figure 1 Transmission and Switching 13 . . . . . . . . . . . . . . . . . . . . . . . . . . .
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This note was uploaded on 08/08/2011 for the course CS 310 taught by Professor Aartisingh during the Spring '11 term at National Institute of Technology, Calicut.

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ccs7 - General Telecom Common Channel Signalling System#7...

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