Search for: [Description = "The most convenient way of presenting one\- or two\-dimensional offered traffic in a network by Markovian chain to evaluate quality of service \(QoS\). Pictorial presentation of chain becomes very complicated for three dimensional traffic case, required for voice data integrated service\/mixed traffic of mobile cellular network\; hence application of cut or node equations become a cumbersome job. This paper proposes a model of three\-dimensional traffic in a network for both unlimited and limited user case. Here direct analytical method is introduced instead of Markovian chain to achieve traffic parameters."]