One thing that can be noted from the figure above is that, although Bluetooth works in an ad-hoc fashion (and not server-based) all communication is done visavi the Master unit. There is no direct communication between slave units. Nor is it intended for the Master to route messages between slave units. Rather, if slave units find that they want to talk directly to each other, they would form a new piconet, with one of them acting as Master. This does not mean that they have to leave the previous piconet. More likely, they will be parked in the "old" net unless they decide to quit the "old" net altogether.