iBeacon is a system of micro geolocalization. Are a new class of transmitters  at low power and low cost but  they are able to notify their presence to near devices by Bluetooth Low Energy (BLE).

This  technology allows to smartphone or other devices to make actions when they are near by a  Ibeacon devices.
This new system uses the perception of proximity of BLE  to transmit universal unique identifier (UUID) that will be read from a specific app iBeacon-ready. This app can perform many actions planned as send a notify push and it will be possible from a  user to receive certain contents based on the context in which it is located.

Telcomms offers different solutions on this new market.