The switching network consists of a number of switches connected by trunks. The wireless network is built of base stations connected to switches. A call from a mobile user is set up through a base station and a number of switches. A switch has the input queue for the source and the output queue. The packets are held in the input queue if the output queue in the switch is full. The input queue is a buffer that holds the packets if the required bandwidth exceeds the available bandwidth. The switch design allows for collision free packet transfer between the input and the output queue. A variable buffer is employed based upon the protocol carried, with a priority technique used to service time sensitive protocols. A multiplexing mechanism is used to allow other protocols to enter the queue during time-outs. This paper proposes a call processing model for wireless networks. Wireless communication can cause congestion in high-speed switching networks depending on the volume of calls, their origination and the network architecture. In congested areas where wireless services are extensively used, the switching network can become congested. In addition, the quality of wireless communication can decrease because of the frequency range that allows for limited number of calls made within the cell. The call processing model allows for evaluation of those limitations and for choosing the best possible solution.
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