How a estimote beacon can send information to the cloud

Imagine the following scenario: I have a beacon in a room, and the people enter in the room with a beaconing badge, how it’s possible for the beacon to send the information that the person with the badge it’s in the room? The person don’t have a cellphone, just the estimote beacon and the beaconing badge.

Some ideas or somebody can help me with that question?

Regards