�1���� Scope
�2����
References
�3����
Terms and Definitions
�4����
Abbreviations
�5����
Overview of B-ISDN signalling
������� 5.1���� B-ISDN signalling protocols
������� 5.2���� B-ISDN signalling network architectures
�6����
Reference connections for B-ISDN signalling
������� 6.1���� Reference connections for Link-By-Link signalling functions
������� 6.2���� Reference connections for Edge-to-Edge signalling functions
�7����
GOS parameters and target values
�8����
Recommendation history
Annex A � Explaining the basis for the GOS parameters in this Recommendation