Hitachi, Ltd.

Shigeki Satomi

Naoki Ono

Taku Seki

Masaaki Ishikawa

Mami Oka

Mitsunobu Nagao

In an online service providing system, a user PC can receive services without paying attention to business hours and line identifier numbers of service points. Automatic distributor device exists between PC issuing a service request and a plurality of service points offering services and passes the service request of PC to pertinent service point. Access authorization level DB stores information regarding each user. Service point DB stores business time zones of respective service points. Automatic distributor device refers to access authorization level DB to determine an authorization level of the user. Moreover, automatic distributor device references service point DB to select service point currently in the business time zone and relays communication to PC.

Method and system for providing an on-line service and computer readable storage medium

A relay method for an automatic relay system to be connected via a public network to a node used by a customer, to relay an incoming call from the node to one of a plurality of telephone answering windows. In the automatic relay system, upon reception of an incoming call from the node, a telephone answering window data base holding business hours and telephone numbers of the respective telephone answering windows is searched for an available telephone answering window at the time of reception of the incoming call. If a telephone answering window available at the time of reception of the incoming call is found, the telephone number of the telephone answering window is read from the telephone answering window data base, and a call is originated to the telephone answering window. After establishment of communication with the telephone answering window as a relay destination, the automatic relay system starts relay of communication between the node and the relay destination telephone answering window, thus providing telephone answering window service to the customer.

Automatic relay method and storage medium containing automatic relay processing program

When communication networks are damaged or communication is restricted due to the occurrence of a disaster, etc., information required for disaster relief is rapidly and effectively obtained. The system has a plurality of server apparatus a plurality of portable terminal equipment and communication networks of different types to which both the portable terminal equipment and the server apparatus can be connected. The portable terminal equipment accesses an available server apparatus over an available communication network and obtains disaster relief information and resource information corresponding to damaged resources to thereby create or update a disaster relief plan file and a resource information file The server apparatus in response to an inquiry from the portable terminal equipment extracts the necessary information from the disaster relief information DB and the resource information DB and transmits the same to the portable terminal equipment

System for providing reliable and effective disaster relief

A line switching apparatus for switching from a telecommunication line to a backup line in the event of occurrence of a fault on the telecommunication line includes a memory storing time zone information for monitoring the state of the telecommunication line, so that, when occurrence of a fault is detected during this monitoring time zone, the line switching apparatus switches from the faulty telecommunication line to a backup line, while when the time is outside the monitoring time zone, the state of the telecommunication line is not monitored so as to prevent unnecessary switching from the telecommunication line to the backup line.

Method and apparatus for line switching

A method of and apparatus for controlling a data transfer by a transfer deliverer node from a terminal equipment belonging to the transfer deliverer node to another node, in a network system having a plurality of nodes connected to a public switched network and a plurality of terminal equipments connectable to a corresponding node. At each node, a discriminator specific to each terminal equipment belonging to the transfer deliverer node is registered in advance in a first memory; a discriminator specific to a user of each terminal equipment is registered in advance in a second memory for each terminal equipment belonging to the transfer deliverer node; in response to a data communication request from the terminal equipment belonging to the transfer deliverer node, the discriminator of the terminal equipment and the discriminator of a user of the terminal equipment, respectively sent from the terminal equipment, are received; it is judged if the received discriminator of the terminal equipment is being registered in the first memory; it is judged if the received discriminator of a user of the terminal equipment is being registered in the second memory as a discriminator of the user of the terminal equipment; and in response to the judgment results, it is determined if a data transfer from the terminal equipment is permitted or not.

Method and apparatus for data transfer and circuit setting for

A network system in which a plurality of computers and a terminal device are connected to one another through a node by telecommunication lines, and one computer is designated by the terminal device to communicate data with the terminal device through the node, the node detects a stop or fault of the one computer, or a stop or fault of the telecommunication line connecting the one computer and the node to each other, in response to an incoming call for the one computer from the terminal device, and informs the terminal device of the stop or fault, in response to the detection of the stop or fault. The terminal device changes an address of the designated computer to perform the communication from an address of the one computer to an address of another computer, in response to the information of the stop or fault, whereby the terminal device issues a call to the another computer on the basis of the new address through the node, in the case where the one computer is designated as a computer to perform the communication, after the change of the address.

Network system and line switching method used therein

In a network system in which a line switching unit and the other line switching unit are connected with each other via communication lines and backup lines, and nodes which are connected with both the line switching units, respectively are adapted to communicate with each other via either one of the communication lines and backup lines and both line switching units, a line switching system wherein a network control unit is connected with the line switching units, said network control unit having, in a table, information on connecting mates of said communication and backup lines an information on a plurality of groups of communication lines each grouped based upon the former information, the network control unit being adapted to select a relevant group based upon the group information when a failure occurs in the communication lines for issuing an instruction for collectively switching a plurality of communication lines belonged to the group, whereby said line switching unit which has received the instruction performs switching to the relevant backup lines.

Line switching system

A network system includes a plurality of nodes connected to each other via line switching units through communication lines and backup lines and a network control unit connected to the line switching units. At an occurrence of a communication line failure, the network control unit supplies the line switching units with a line switching instruction to change over from the failed line to backup lines.

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Yokohama, Japan

Shigeki Satomi