A multimode base station, comprising: a wireless transceiver module, a first processing module, a second processing module, a selection and configuration module, and a network connection module, wherein the first processing module is connected to the wireless transceiver module, the second processing module is connected to the network connection module, the first processing module is connected to the second processing module; characterised in that: the multimode base station can operate in base mode or DM mode; the multimode base station in base mode is equivalent to a common base station; the multimode base station in DM mode is equivalent to a DECT manager; the selection and configuration module is configured to receive a mode setting instruction from a user and set an operating mode of the multimode base station; when the multimode base station is in base mode, the wireless transceiver module is configured to receive a call request initiated by a communication terminal, and transmit the call request to the first processing module, so that the first processing module transmits the call request to the second processing module; the second processing module is configured to transmit the call request to the multimode base station in DM mode through the network connection module when receiving the call request; and when the multimode base station is in DM mode, the wireless transceiver module and the first processing module do not operate; and the network connection module is configured to receive a second call request sent by a multimode base station in base mode, and transmit the second call request to the second processing module, so that the second processing module initiates a call to a called communication terminal of the second call request through the network connection module when receiving the second call request. the multimode base station can operate in base mode or DM mode; the multimode base station in base mode is equivalent to a common base station; the multimode base station in DM mode is equivalent to a DECT manager; the selection and configuration module is configured to receive a mode setting instruction from a user and set an operating mode of the multimode base station; when the multimode base station is in base mode, the wireless transceiver module is configured to receive a call request initiated by a communication terminal, and transmit the call request to the first processing module, so that the first processing module transmits the call request to the second processing module; the second processing module is configured to transmit the call request to the multimode base station in DM mode through the network connection module when receiving the call request; and when the multimode base station is in DM mode, the wireless transceiver module and the first processing module do not operate; and the network connection module is configured to receive a second call request sent by a multimode base station in base mode, and transmit the second call request to the second processing module, so that the second processing module initiates a call to a called communication terminal of the second call request through the network connection module when receiving the second call request.