Abstract
The dual use of trunks for both direct and store-and-forward (S/F) traffic makes high trunk efficiency possible. The resultant trunk savings are important in communication systems in which long-haul trunks contribute heavily to the cost of the system. This paper reports work on the computation of trunking tables that could be used to engineer trunk requirements for prescribed loads and distributions of direct and S/F traffic. A method of computation and some specific results in terms of grade of service of direct traffic and traffic capacity for S/F traffic are presented. The numerical results are for two to forty-eight trunks. The results apply to the case of exponentially-distributed holding times of both the direct and the S/F traffic.
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