�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 prevent unauthorized use of an STP (optional)
������� 8.1���� General
������� 8.2���� Identifying unauthorized SS No. 7 messages
������� 8.3���� Treatment of unauthorized SS No. 7 messages
������� 8.4���� Measurements
������� 8.5���� Notification to unauthorized user
�9����
SS No. 7 Planning Tools
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