A communication control apparatus, mounted on each node of a telecommunications system, receives node type information selected by a neighboring node, and transmits node type information selected by the own node and node type information of another node. The apparatus receives the state variable signal of the neighboring node reflecting a phase representing another node's data transmission timing, and transmits a state variable signal representing the own node's data transmission timing. Subsequently, the apparatus selects the own node's node type in accordance with another node's type information received. The apparatus then varies, based on the own node's node type information selected, another node's node type information and the neighboring node's state variable signal, the state of the own node's phase in accordance with a time evolution rule based on a phase response function and a synchronization alliance function for thereby determining the own node's data transmission timing.