How to get bluetooth name for altbekon?

The altbeacon library (see link below) says that the name of the Bluetooth beacon is transmitted separately from advertising data. How do we get this data? Also, any way to send data tags (small key pairs) through a beacon?

https://github.com/AltBeacon/android-beacon-library/blob/master/src/main/java/org/altbeacon/beacon/Beacon.java#L149

EDIT: beacon.getBluetoothName () doesn't work, it returns null as it should be.