Abstract: A hollow thin walled shell with integral internal baffles is formed by a multilayer coating process. A series of mandrels is designed to be assembled to form the outer surface of the desired shell. The mandrel surfaces hidden during assembly include the areas intended to form the internal baffles. The mandrels are coated separately, assembled, and the assembly is given a continuous overcoating that holds the assembly together and provides the shell with mechanical integrity. The assembly is machined to remove all internal and external coated surfaces not intended to be included in the shell and the mandrel is dissolved or otherwise removed, leaving the thin coatings as the desired shell with baffles at the areas where the coated mandrel surfaces were hidden during assembly.

Abstract: Telecommunication switches (e.g., PBX's or local exchange carrier's Centrex-enabled switches) route calls in accordance with economic incentives (e.g., least cost routing) resulting from a bidding process between participating telecommunication Carriers (Carriers) by operation of a central processor, a computer referred to as a bidding moderator (Moderator). Each of the Carriers bidding for traffic over a route informs the Moderator of the rate it is willing to charge for (or other economic incentive it is willing to offer) service between two specific points in a telecommunication network, for example, from one NPA-NXX to another NPA-NXX, at some particular time. This "bid" rate may be lower than that Carrier's established rate for any of several reasons (e.g., the Carrier has excess capacity on that route at that time). The Carrier may change its bids as often as it likes during the day as traffic patterns change.