A method of communication between a sending device and a recipient device, comprising a step (210; 310; 410) for transmission, from the sending device to the recipient device, of a first message comprising a first service identifier relating to a first data transport service and a first data set corresponding to a configuration of said first data transport service, a step (220; 320; 420) for the sending, from the sending device to the recipient device, of a second message comprising a first protocol identifier relating to a first data transmission protocol and a second data set corresponding to a configuration of said first data transmission protocol, the first message and the second message being sent separately.