FIG. 5 shows a third embodiment of a system which comprises the electronic device of the invention. In this third embodiment, the same mobile device 31 is used as in FIG. 3. However, instead of a data forwarding device 53, a bridge 51 is present. Bridge 51 does not determine the schedule like bridge 1 of FIG. 1, but it does buffer messages addressed to service-providing devices (lights 61 to 69) that are, according to the schedule, currently not able to receive these messages and forwards these messages as soon as they are. In this embodiment, the bridge 51 starts transmitting the command message as soon as the applicable service-providing device is able to receive messages according to the schedule. In an alternative embodiment, the applicable service-providing device polls the bridge 51 as soon as it is able to receive messages and the bridge 51 transmits the command message as soon as it has received the polling request.
