CONTENTS

 1     Introduction
 2     Scope
 3     References
 4     Only-path circuit group
        4.1     No significant congestion
        4.2     Significant congestion
 5     High-usage/final circuit group arrangement
        5.1     High-usage group with no significant congestion on the final group
        5.2     High-usage group with significant congestion on the final group
 6     Origin-destination equivalent traffic offered
        6.1     Determination of origin-destination traffic offered when origin-destination traffic measurements on the totality of call attempts are available
        6.2     Determination of origin-destination traffic offered when origin-destination traffic measurements only on a sampling basis are available
        6.3     Determination of origin-destination traffic offered when only circuit-group based measurements of traffic intensity are available
 7     History
 8     Bibliography
Annex A – A simplified model for the formula presented in 4.2
Annex B – Equivalent traffic offered
Annex C – Methods for determination of origin-destination traffic offered when only the measurements of traffic intensity on circuit group basis are available
        C.1     Notation, derivation, and solution of Formula 6-1 in 6.3
        C.2     The pseudo-inverse
        C.3     The iterative algorithm
Bibliography
Annex D – Examples of application of the methods described in Annex C
        D.1     Example 1
        D.2     Example 2
Annex E – A sample performance evaluation of the pseudo-inverse and of the iterative algorithm