�1���� Introduction
�2����
Definitions relating to Circuit Multiplication Equipment
������ 2.11���� Operating modes
���������������� 2.11.1���� Point-to-point mode [see diagrams a) and
b) of Figure 2]
���������������� 2.11.2���� Multi-clique mode (see Figure 3)
���������������� 2.11.3���� Multi-destination mode
�3����
Requirements for control
������� 3.1���� Reasons for use of Circuit Multiplication Equipments (CME)
������� 3.2���� Integration of Circuit Multiplication Equipments into the
circuit-switched international network
������� 3.3���� Factors for signalling functions determination
����������������� 3.3.1���� Capabilities and limitations
����������������� 3.3.2���� Connection types supported on Circuit
Multiplication Equipment links
�4����
Connection types and Circuit Multiplication Equipment techniques in the
context of signalling
�5����
Division of functionality between the International Switching Centre and
the Circuit Multiplication Equipment
������� 5.1���� Circuit Multiplication Equipment dynamic load control process
������� 5.2���� Call set-up process
����������������� 5.2.1���� Seizure/select
����������������� 5.2.2���� Release
����������������� 5.2.3���� Dual seizure
������� 5.3���� Change of connection of type after call set-up
����� ��5.4���� Inter-dependency
between dynamic load control and call set-up process
�6����
Control information elements between International Switching Centre and
Circuit Multiplication Equipment
������� 6.1���� Information elements for Type 1 Circuit Multiplication
Equipment
������� 6.2���� Information elements for Type 2 Circuit Multiplication
Equipment
������� 6.3���� Notification of dynamic load control actions
�7����
Transmission techniques for International Switching Centre/Circuit
Multiplication Equipment signalling
������� 7.1���� External data path
������� 7.2���� Channel associated links
������� 7.3���� Common channel signalling in the PCM access stream
�8����
Recommendation for signalling system
�9����
Example systems
Annex A � Controlled DCME interface utilizing time-slot 16
Annex B � Example of a signalling system between DCME and ISC
������� B.1���� General
������� B.2���� Physical level of interface
������� B.3���� Distribution of functions between DCME and ISC
����������������� B.3.1���� DCME functions
����������������� B.3.2���� ISC functions
������� B.4���� Signalling code
������� B.5���� Signalling procedures
����������������� B.5.1���� Successful call set-up
����������������� B.5.2���� Unsuccessful call set-up
����������������� B.5.3���� Call release
����������������� B.5.4���� Maintenance procedures
������� B.6���� DCME load tests