A method for fee-charging data of an application transmitted on a section of a communication network, implemented in a device for accessing the network. The method includes: detecting an activation of the application; transmitting an identification message including information relating to the identification of the application intended for an entity for managing sections of the network; receiving, from the entity for managing sections of the network, a notification message including at least one identifier of a section of the network and of fee-charging parameters associated with the at least one identifier; and, depending on the received message, initializing the fee-charging of the data of the application.