Systems, methods, and modes are disclosed for sharing presentation content displayed on a meeting room display during a meeting. The system comprises one or more presentation gateways each associated with a network address and configured for receiving and transmitting presentation content to a meeting room display during a meeting. The system further comprises one or more RF beacons each associated with a presentation gateway and configured for broadcasting information. The system also comprises a portable electronic device that pairs with the presentation gateway to share presentation content by: receiving from at least one of the one or more RF beacons the broadcasted information, estimating a distance to the at least one of the one or more RF beacons according to a detected signal strength of the RF beacon broadcast, determining a location of the portable electronic device based on the distance to the at least one of the one or more RF beacons, identifying a presentation gateway network address based on the determined location, and pairing with a presentation gateway using the identified presentation gateway network address.