A method for communication between a first unit and a second unit via a telecommunications network, wherein the first unit comprises a first family of applications and a second family of applications having communication capacities on the network extending beyond communication capacities of the applications of the first family, the method including: obtaining, by a confidence component belonging to the second family of applications a statement of a question to be posed to a user of the first unit in the context of an execution of an application of the first family; presenting the question by the confidence component via a user interface and capturing a response from the user by the confidence component; and for at least one type of response from the user, transmitting from the confidence component to the second unit, via the network, at least one message identifying the question presented and indicating the response captured, said message being transmitted under conditions inaccessible to the applications of the first family.