This invention relates to a method for exchanging requests between the computer application of a mobile terminal (A) and an instantaneous messaging server (1), wherein: the computer application sends requests (2) to server (1) relative to the detection of an event (3), requests (2) are sent according to a request frequency set to a first value, whereby: when requests (2) are sent, if the event (3) is not detected by server (1), said server controls the computer application so that the latter sends the requests (2) according to a request frequency set to a second value that is lower than the first value, as soon as server (1) detects the event (3), said server controls the computer application so that the latter sends the requests (2) according to a request frequency set to the first value.