It takes in charge until 100 stations.
It is sufficient to choose the number of 'Poste' of the customer and to activate the meter. When he finished his utilization, it is sufficient to click on fFin de la connexion' and you have the length and the amount of the connection.
You can indicate the time of disconnection so that it is deducted of the amount. Try it and you will note its speed and using simplicity.