A method of communicating using a communications device via a wireless access interface to perform device-to-device communications, the method comprising configuring the communications device with at least one of an indication of one or more first communications resources of the wireless access interface which can be allocated on request to the communications device by a mobile communications network for transmitting signals to one or more other communications devices or receiving signals from the one or more other communications devices in accordance with the first mode of operation, when the communications device is within a coverage area provided by the mobile communications network, and an indication of one or more second communications resources of the wireless access interface which can be used by the communications device for transmitting signals to one or more other communications devices or receiving signals from the one or more other communications devices in accordance with a second mode of operation using a device to device communications protocol, when the communications device is within the coverage area provided by the mobile communications network, and receiving, from the mobile communications network, an indication of whether the communications device can use at least one of the first communications resources of the wireless access interface for performing device-to-device communications in accordance with the first mode of operation or the second communications resources of the wireless access interface for performing device to device communications in accordance with the second mode of operation, receiving barring information from the mobile communications network, the barring information indicating that the communications device is barred from one or more of the second communications resources of the wireless access interface, and depending on the indication provided by the mobile communications network, the received barring information, and the configuration of the one or more of the first communications resources, transmitting signals to the one or more other communications devices via the first communications resources allocated by the mobile communications network in accordance with a first mode of operation or receiving signals from the one or more other communications devices via the first communications resources, or depending on the indication provided by the mobile communications network, the received barring information, and the configuration of the one or more of the second communications resources, transmitting signals to the one or more other communications devices via the second communications resources or receiving signals from the one or more other communications devices via the second communications resources in accordance with the second mode of operation using the device to device communications protocol, wherein the indication received by the communications device of whether the communications device can use at least one of the first communications resources of the wireless access interface for performing device-to-device communications in accordance with the first mode of operation or the second communications resources of the wireless access interface for performing device to device communications in accordance with the second mode of operation is dependent upon one of a plurality of predetermined classes of communications devices, each of the predetermined classes being associated with a predetermined priority.