A method for controlling, via a terminal, a standby mode of a first communication module of the terminal. The first communication module exchanges data with a first wireless access network. The terminal includes a second communication module, which exchanges data with a second wireless access network. The second communication module has a maximum data rate that is lower than a maximum data rate of the first communication module. The terminal belongs to a group of terminals sharing a set of one or several identification codes for connecting to the first wireless network. When the first communication module is in standby mode, the second communication module listens to a downlink between the second wireless access network and the terminal. The first communication module is activated and connects to the first wireless network using the indicated identification code in the activation request received from the server.