Abstract: The communications method comprises the reader and the radio tags communicating via at least one radio interface first protocol comprising at least one protocol layer: sending (E20) to the radio tags a polling message in compliance with the first protocol and inviting the radio tags that have data for transmitting to a destination entity to make a declaration; after at least one radio tag has made a declaration, receiving (E50) a message in compliance with the first protocol coming from said radio tag and including data destined for the destination entity and encapsulated using at least one second protocol of a protocol layer higher than the radio interface protocol layer; extracting (E60) from the message data that has been encapsulated using the second protocol; and transmitting (E70) the data encapsulated using said at least one second protocol to the destination entity.