We develop a hybrid partitioning-threshold call admission control algorithm to derive optimal pricing of multiple service classes in mobile wireless networks for revenue optimization with quality of service (QoS) guarantees. Unlike traditional admission control algorithms which make acceptance decisions to satisfy QoS constraints such as the call blocking probability, the hybrid partitioning-threshold admission control algorithm is designed to maximize the revenue earned by the system while satisfying QoS of multiple service classes. We utilize the hybrid call admission control algorithm to analyze a pricing scheme that correlates service demand with pricing, and to derive optimal pricing under which the system revenue is maximized while QoS requirements of multiple service classes are guaranteed.