In step S1060, the switch determiner 330 determines whether or not a switch review timing to review switching the connection destination of the connecting terminal 400 has arrived.

For example, the switch review timing is one of periodic timings, which arrive every minute, a timing at which the level of the communication quality falls below a predetermined value, or a timing at which new one of the radio terminals 400 is connected. The switch determiner 330 determines whether or not the switch review timing has arrived by, for example, monitoring the terminal management table 540 of the self device.

When the switch review timing has arrived (YES in step S1060), the switch determiner 330 causes the process to proceed to step S1070. When the switch review timing has not arrived (NO in step S1060), the switch determiner 330 causes the process to proceed to step S1110, which is described below.

In step S1070, the switch determiner 330 determines the switch source candidate terminal 400 and the switch destination candidate device 300 by referring to the integrated terminal management table 550 (see FIG. 7).

In the examples illustrated in FIGS. 1 and 7, as described above, for example, the switch determiner 330 of the first radio communication device 300₁ determines the third radio terminal 400₃ as the switch source candidate terminal 400 and determines the second radio communication device 300₂ as the switch destination candidate device 300.