Devices, methods and computer programs for establishing a communications link between an information system of a transportation vehicle and a mobile device. The device for an information system of a transportation vehicle for producing a communications link to a mobile device includes a communications module and a control module. The control module controls the communications module, receives information about a hardware address of the mobile device, detects the hardware address of the mobile device via the communications module based on the information about the hardware address, initiates the pairing of the mobile device with the information system based on the hardware address of the mobile device and establishes the communication link to the mobile device based on the pairing.