Integrated information communications system

摘要

To provide an integrated information communication system (ICS) 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 (eg. LANs) 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. A conversion table 22013-1, which may be within the access control apparatus, has network identifiers for sectioning off a section of the ICS network and making that portion a net. This enables closed-zone intra-corporation communication, inter-corporation communication or virtual dedicated line communication using the network server, or open-zone inter-corporation communication.