A self-routing switching system comprised of: a route setting means (10) which monitors identification information out of pairs of transmission information and identification information input from a plurality of incoming lines and forms control information for setting a path from an incoming line to an outgoing line corresponding to said incoming line and designated by said identification information and adding the thus formed control information to said transmission information and a self-routing speech path (20) which is a multipath speech path able to create a plurality of paths formed between said plurality of incoming lines and outgoing lines from each one incoming line to each one outgoing line and which monitors said control information and selects and sets a path for leading said transmission information from said incoming line to said outgoing line from among said plurality of paths and autonomously transfers said transmission information to said outgoing line through the thus set path. <IMAGE>
