�1���� Scope of this Recommendation
�2���� References
�3���� Terms and definitions
�4���� Introduction
�5���� Modelling for dimensioning of
circuit groups
������� 5.1���� Modelling of offered traffic
������� 5.2���� Categories of circuit groups
� ������5.3���� GOS objectives
�6���� Characterization of overflow
traffic from a first-choice group
������� 6.1���� Calculating traffic intensity of
individual overflow
������� 6.2���� Calculating peakedness of
individual overflows
�7���� Dimensioning methods for an
overflow group
������� 7.1���� Principles
������� 7.2���� Calculating individual call
blocking probabilities
�8���� History
�9����
Bibliography
Annex A - Example
methods for calculating overflow variances from a first-choice group
������� A.1��� �Assumptions and notations
������� A.2���� Variance calculation methods
����������������� A.2.1���� Exact solution method
����������������� A.2.2���� Approximation method
Annex B - Example
method for calculating individual call blocking� probabilities of an overflow group
������� B.1���� Reduced network method
������� B.2���� Notations
������� B.3���� Determination of equivalent
capacity ni
������� B.4���� Time congestion Π
������� B.5���� Blocking probability Bi
������� B.6���� The second overflow
������� B.7���� Field of application
������� B.8���� Processing time and programming
effort