Abstract: In a routing control apparatus and method for a composite network, a decision is automatically made as to whether a connection to a public telephone network via a leased line is allowed, by examining the dial information entered from a calling party and judging the communications applicable to the receiving node, the type of communication requested, and other factors. A connection judging unit extracts, from the dial information entered by the calling party, a node identifier CC for specifying the receiving node and a connecting type identifier V/F for directing the initiation of judgment as to whether a connection to a public network via a leased line is allowed and for providing a parameter for determining the type of communication requested, and which judges, based on the extracted identifiers CC and V/F, whether a connection to a public telephone network accommodating the called party is allowed via a leased line destined for a receiving node.

Abstract: An improved method for underwater reclamation is disclosed. Dredged mud sent under pressure by an earth and sand conveying device is treated with solidifying material, and before it is solidified, it is directly fed to an underwater reclaiming apparatus. The treated mud is fed through a discharge port of the underwater reclaiming apparatus, while the discharge port is always maintained embedded at a constant depth in a previously deposited underwater reclamation mud layer at the bottom of the water. An apparatus for underwater reclamation that is suitable for practicing the improved method is also disclosed.