There is provided a wireless base station device capable of reducing a communication delay time related to communication of a priority call. A wireless base station device includes a processor a memory, and an antenna. The memory stores a wireless resource allocated to a priority call of radio channels for transmission of data with a wireless communication terminal before a priority call is generated under the control of the processor. The processor allocates the wireless resource stored in the memory to a generated priority call. The antenna performs communication of data of the priority call by using the allocated wireless resource.
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