Such regulation control that the processing load on the network side is low and, furthermore, particular services are not regulated is realized. A regulation table is stored in a mobile communication terminal 1. When regulation level information is indicated by a maintenance device 4, transmission regulation control for regulating transmission operation is performed based on the content of the regulation table. In this case, it is possible to regulate particular services which use packet communication, while it is also possible to avoid regulating particular services. Since the maintenance device 4 only indicates regulation level information indicating which part in the regulation table should be used and does not indicate the content of regulation, the processing load on the network side is low.