An equipment controlling apparatus comprising: first storage means for storing data indicating a state of an equipment; inputting means for inputting a first telephone number and a second telephone number; second storage means for storing the first telephone number and the second telephone number inputted by said inputting means; communication means (900) for communicating with a centralized control apparatus (999) for controlling said data intensively; and controlling means for executing controls so that communication is performed with the second telephone number stored in said second storage means when the communication cannot be performed with the first telephone number stored in said second storage means.