| 摘要 |
Provided is an office-purpose digital cordless telephone system that can avoid radio wave interferences with communication channels of PHS system, said radio wave interferences being caused by a different type of wireless system. A carrier sense unit (121) of a PHS base station (12) periodically carrier-senses peripheral wireless radio waves, thereby monitoring whether any radio wave interferences with communication channels used for communication with a PHS terminal (13) have occurred. A communication channel management unit (122) ranks, on the basis of a result of the monitoring performed by the carrier sense unit (121), the communication channels to be used for the communication with the PHS terminal (13). Upon occurrence of a request for acquiring or switching the communication channel to be used for the communication with the PHS terminal (13), a communication channel switching control unit (123) selects and allocates, on a priority basis, in descending order of rank, as a communication channel in which no radio wave interference has occurred, a communication channel out of the available communication channels ranked and managed by the communication channel management unit (122). |
