Overview of multiple bOS Server is especially useful in an apartment building where a building manager is required to monitor different parameters such as the status of different sensors, energy consumption, etc. In an apartment building, there would normally be one bOS Server per apartment. This would ensure the independent operation of the smart home system in each apparent, efficient security and stability of the whole solution. ComfortClick bOS enables the building manager to have an overview of all the apartments in the smart building and receive alerts about events such as smoke detection or water leakage. RPC service is used to establish communication between multiple bOS Servers.