The invention is a method of connecting user equipment to at least one network, a communication system, and a user equipment. In a communication system comprising at least one network, including network entities which provide connectivity to user equipment, a method of connecting the user equipment to the at least one network in accordance with the invention includes establishing a secure tunnel which provides connection between the user equipment and one of the network entities; and authenticating the user equipment with another of the network entities; and wherein the authenticating of the user equipment with the another of the network entities occurs at least partially simultaneously with the establishing of the secure tunnel.