Abstract: A method for managing a session over a network that involves multiple end points obtaining services via an application server, the method involving: after the end points have registered with the application server for the session, establishing initial policies for network traffic flows for each end point participating in the session; after establishing the initial policies, determining information about the network traffic flows for at least some of the multiple end points participating in the session; from the information determined about the network traffic flows, identifying which of the multiple end points is functioning as a host server for the session; and after identifying which of the multiple end points is functioning as the host server, establishing new policies for network traffic flows for the multiple end points, wherein under the new policies fewer network resources are reserved for each of the multiple end points other than and as compared to the end point functioning as the host server.