The invention relates to a method, for a long range wide-area communication network comprising at least one electronic device and an application server, for the acknowledgement of a frame exchanged, the method being executed by the electronic device and comprising the steps of: sending a first frame to the application server, the first frame comprising data, determining a first integrity code according to the data in the first frame, receiving a second so-called acknowledgement frame from the application server, the acknowledgement frame comprising a second integrity code, if the first integrity code determined by the electronic device and the second integrity code are equal, then validating the acknowledgement by the application server of the first frame sent by the electronic device.