The present invention relates to the formation by a communication relay server of a communication pathway between a terminal and a service provider server. It relates to a communication relay system, server and method for same, wherein, when a terminal accesses a service provider server, the communication relay server uses virtual information such as path ID, etc., to form a communication pathway so that terminal identification information such as telephone number, etc., may not be directly exposed, and the communication pathway that is formed between the terminal and the service provider server may also be changed to a communication pathway that is formed between another terminal and the service provider server.