The power pack includes a plurality of parallel groups. The actuator includes a material that deforms in response to an electrical signal and that is adapted to, upon implantation in a recipient, transmit vibrations representative of a sound signal to an organ of the recipient, wherein the material is at least partially exposed to at least one of body tissue and fluid of the recipient. The public network proxy facilitates data and voice sessions between the terminal and any number of other communication devices. The forward request queuing mechanism preferably is managed by metadata, which, for example, controls how many service requests may be placed in the queue, how long a given service request may remain in the queue, what action to take in response to a client request if the forwarding queue’s capacity is reached, and the like. In a plurality of radio IC tags present in a radio wave area, width of the antenna conductor of the radio IC tag is set at 1.