A switching method and a switching apparatus in a telecommunication network for connecting physical endpoints via a through switch connection, wherein the through switch connection is composed of legs and a leg connector, and a leg is composed of services and subconnections between the services. A thermal engine propelling the vehicle through ambient water creates waste heat for heating the hull to raise the temperature of the gasvapor cavity extending over it. The device identifies optimum modified handoff parameters for the mobile device based on the measured one or more networkcall service parameters.