CCITT Rec. Q.705 (11/1988) – SIGNALLING NETWORK STRUCTURE
1 Introduction
2 Network components
2.1 Signalling links
2.2 Signalling points
3 Structural independence of international and national signalling networks
4 Considerations common to both international and national signalling networks
4.1 Availability of the network
4.2 Message transfer delay
4.3 Message sequence control
4.4 Number of signalling links used in load sharing
4.5 Satellite working
5 International signalling network
5.1 General
5.2 Number of signalling transfer points in signalling relations
5.3 Numbering of signalling points
5.4 Routing rules
5.5 Structures
5.6 Procedures
6 Signalling network for cross-border traffic
6.1 General
6.2 Use of international hierarchical level
6.3 Integrated numbering of national signalling networks
6.4 Interworking of national signalling networks
7 National signalling network
8 Procedures to prevent unauthorized use of an STP (Optional)
8.1 General
8.2 Identifying unauthorized SS7 messages
8.3 Treatment of unauthorized SS7 messages
8.4 Measurements
8.5 Notification to unauthorized user
ANNEX A – Mesh signalling network examples
A.1 General
A.2 Basic network structures (example)
A.3 Routing
A.4 Actions relating to failure conditions
A.5 Explanatory note from the implementors forum for clarification of load sharing