CONTENTS

 1     Introduction
 2     References
        2.1     Normative References
        2.2     Bibliography
 3     Definitions relating to Circuit Multiplication Equipment
 4     Abbreviations
 5     Requirements
        5.1     Reasons for use of Circuit Multiplication Equipment (CME)
        5.2     Integration of Circuit Multiplication Equipment into the circuit-switched international network
        5.3     Factors for signalling functions determination
                  5.3.1     Capabilities and limitations
                  5.3.2     Connection types supported on Circuit Multiplication Equipment links
        5.4     Connection types and Circuit Multiplication Equipment techniques in the context of signalling
 6     Network aspects
        6.1     Division of functionality between the International Switching Centre and the Circuit Multiplication Equipment
        6.2     Circuit Multiplication Equipment dynamic load control process
        6.3     Call set-up process
                  6.3.1     Seizure/select
                  6.3.2     Release
                  6.3.3     Dual seizure
        6.4     Change of connection of type after call set-up
        6.5     Inter-dependency between dynamic load control and call set-up process
 7     Protocol
        7.1     Control information elements between International Switching Centre and Circuit Multiplication Equipment
        7.2     Information elements for Type 1 Circuit Multiplication Equipment
        7.3     Information elements for Type 2 Circuit Multiplication Equipment
        7.4     Notification of dynamic load control actions
 8     Example systems
Annex A - Interface based on time-slot 16 (frame 0-15)
Annex B - Interface based on time slot 16 (frame 1-15)
        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