Abstract: In a paging system control apparatus that employs a POCSAG signal consisting of a plurality of batches each consisting of a plurality of groups, it is intended to improve the efficiency of using the batches by reallocating existing call signals in storing call signals of randomly input calls in a queue buffer for the POCSAG signal. The apparatus has first and second queue buffers that alternately serve as a current-use queue buffer and a waiting queue buffer. When it is found that the current-use queue buffer has no empty area for accommodating a call signal of a new call, all of the call signals stored in the current-use queue buffer are transferred to the waiting queue buffer so as to be reallocated in sequence from the head of the waiting queue buffer and so that empty areas are minimized. The reallocation-completed waiting queue buffer is changed to a new current-use queue buffer, and the new call signal is stored therein.