Abstract: A two-way wireless monitoring system tracks the location of badged users or objects within a facility, and accordingly provides a variety of services relevant to the badge location and ID. The system comprises a plurality of beacons bearing beacon IDs distributed throughout the facility, a portable badge having a badge address, a base-station having access to a central unit via a data network. Each beacon periodically broadcasts the respective beacon ID, for being picked up by the badge when being nearby. The base-station polls the badge to receive the beacon IDs of the nearby beacons, and then uploads such beacon IDs to the central unit via the data network. Finally, the central unit estimates the badge location and decides on triggering an event within the facility based on the estimated badge location.