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In this paper, we discuss our preliminary work on signaling overload control for cellular services which requires adaptability and scalability as well as guaranteed level of service. We propose a set of controls that can provide different grades of service to different service classes effectively. The controls are resource sharing schemes proposed consisting of a token rate control combined with priority scheduling and an awareness of the transport network state. Simulation results are given illustrating the behavior of new signaling overload controls and comparative performance with the other existing controls in the literature.