Integrated information communication system

Abstract

To provide an integrated information communication system without using dedicated lines or the Internet, ensuring communication speed, communication quality, communication trouble countermeasures in a unified manner, wherein security and reliability in communication is ensured. The system is comprised of an access control apparatus for connecting a plurality of computer communication networks or information communication equipment to each, and a relay device for networking the aforementioned access control apparatus, the system having functions for performing routing by transferring information by a unified address system, and is configured such that the aforementioned plurality of computer communication networks or information communication equipment can perform communications in an interactive manner.

What is claimed: 
     
         1 . A domain name server retrieving an Integrated Information Communication System (ICS) user address corresponding to a telephone number that conforms to E.164, and including an existent domain name server function without an existent domain name tree, and having a domain name tree which is used to retrieve ICS user address based on said telephone number,
 said domain name server comprising,   a method to receive said telephone number that conforms to E.164   a method to retrieve said ICS user address corresponding to said telephone number that conforms to E.164,   a method to reply said ICS user address.