The present invention relates to an operating method for a communication device (DC) for remote control of an actuator (ACT) for a piece of mobile equipment (ME) in a building, comprising the steps consisting of: analysing a first received signal (RS) to determine if at least one sequence of the first received signal (RS) can be interpreted as being in accordance with a configuration communication mode which can be used by the communication device (DC); on receipt of at least one sequence of the first received signal which is in accordance with a configuration mode, defining said configuration communication mode (MCi) as the identified configuration communication mode; defining an operational communication mode (MUO) on the basis of the identified configuration communication mode (MCi); receiving a second signal (RS2) according to the operational communication mode (MUO); and interpreting the second received signal (RS2) according to the operational communication mode (MUO), in such a way as to identify control data in the second received signal (RS2).