A mobile communication system comprises a plurality of mobile communication terminals and a first base station apparatus that is operative to wireless communicate with the plurality of mobile communication terminals. The first base station apparatus notifies, to the plurality of mobile communication terminals, that a second base station apparatus, which permits only the connections of particular mobile communication terminals, has been set to permit the connections of all mobile communication terminals. This notification is performed by transmitting ID information of the second base station apparatus by use of an intra-cell broadcast.