An illustrative intelligent network and method for providing voice telephony over Asynchronous Transfer Mode and private address translation are provided that can provide significant advantages. Fluid flow is enabled between the flow channel and the lumen of the flow control apparatus by forcing an end of the flow control apparatus through the elastic material so that the orifice communicates with the flow channel lumen. The output stage amplifying circuit amplifies output voltage from a node and outputs it from an output terminal, and generates the second input voltage corresponding to output voltage and feedback-inputs it to the opposite phase input node. The user may also be updated with distributor inventory information in the event that the merchant does not possess enough stock to fulfill purchase requirements of the user. After attaching the leading end of the cord to the frame of the existing eyeglasses, a clip on the reel assembly housing is selectively attached to an item of clothing worn by the user, thereby preventing the accidental loss or misplacement of the eyeglasses after they have been removed from the head of the user.