| 摘要 |
A wireless communications device, that is constituted from a control station and a slave station that perform encryption communication using an encryption key, includes a controller that monitors communication quality of a state of a call to the slave station and, in a case where the communication quality degrades to below the same level as a state that is determined in advance, operates in such a manner that a procedure for changing the encryption key, which is determined in advance, is not activated. |
