SWITCHING SYSTEM AND ITS ROUTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a means that routes a setting request on the basis of information included in a setup request received from a subscriber terminal 20 to a desired network among networks (310, 410) having at least one different routing system or more. SOLUTION: This invention provides the switching system that routes a setting up request on the basis of included in setup request received from the subscriber terminal 20 to a desired network among networks having at least one different routing system or more.