A system, method, and computer-readable medium for a communications system to manage multiple radios and protocol stacks in a network and in a user equipment are provided. When active communications takes place over one radio system, an alternate radio system is managed in such a way that promotes both low-power operations and quick handovers. When communications are idle over all of the networks, one radio network may be assigned to be a primary radio network, and the alternate radio network may be switched off provided all incoming calls are routed to the primary radio network.