Automatic learning of network routing using random routes

Routing selected telecommunication calls to individual destination switch nodes by each switch node of a distributed telecommunication switching system over randomly selected telecommunication links not marked in an internal routing table of each switch node as being routes to those individual destination switch nodes. When each telecommunication call is established, a return message from the destination switch node provides routing information back to the originating switch node. Each originating switch node updates its routing table based on the results of the routing information returned when the random route is established. A random route is selected every predefined number of calls to each destination switch node.