Abstract: In the presence information management method of the present invention, the e-mail address of the user and the terminal address of a terminal are extracted upon receipt of an e-mail transmission request, the e-mail address and terminal address correspondence table is retrieved by using the extracted e-mail address, and the extracted terminal address is registered in the e-mail address and terminal address correspondence table if the retrieved terminal address does not correspond to the extracted terminal address. Thus, the user can automatically update presence information with his/her e-mail transmission request.

Abstract: A wireless communication system includes: a first wireless communication terminal to register an external device, wherein a subscriber information management device transmits a location of the external device to the first wireless communication terminal based on a search result of the external device based on a search request for the external device, the search request being transmitted from the subscriber information management device to a second wireless communication terminal within a search target area, the second wireless communication terminal being identified by the subscriber information management device based on registration information including certain information and location information of the external device.

Abstract: A mobile terminal device including a first housing, a second housing, the device having multiple configurations, including a first configuration in which the second housing is closed with respect to the first housing, a second configuration in which the second housing is slid relative to the first housing from the first configuration, and a third configuration in which the first housing is separated from the second housing, and a first input key is provided on the first housing, and is covered with the second housing in the first and second configurations and is exposed in the third configuration.

Abstract: A wireless communication system includes: a first wireless communication terminal to register an external device, wherein a subscriber information management device transmits a location of the external device to the first wireless communication terminal based on a search result of the external device based on a search request for the external device, the search request being transmitted from the subscriber information management device to a second wireless communication terminal within a search target area, the second wireless communication terminal being identified by the subscriber information management device based on registration information including certain information and location information of the external device.

Abstract: A filter-information transmitting/receiving unit transmits path information with the filter information when the filter information is set by a filter setting unit, and receives the path information when the filter information is set in other network device. A filter-combining determining unit determines whether redundant filter information with the other network device is to be combined or deleted, based on the filter information and the path information. A filter control unit issues a filter-setting request or a filter release request based on a result of determination by the filter-combining determining unit.

Abstract: A communication terminal apparatus including a second apparatus having a communication function and a first apparatus connectable to the second apparatus. The communication terminal apparatus includes an external communication function unit that is disposed in the second apparatus and acquires software, which is executable in the first apparatus, from an outside, a second memory that is disposed in the second apparatus and stores the software which is acquired, a first memory that is disposed in the first apparatus, and storage unit that is disposed in the first apparatus and stores the software read out from the second memory to the first memory according to a connection between the first apparatus and the second apparatus.

Abstract: A mobile terminal device including a first housing, a second housing, the device having multiple configurations, including a first configuration in which the second housing is closed with respect to the first housing, a second configuration in which the second housing is slid relative to the first housing from the first configuration, and a third configuration in which the first housing is separated from the second housing, and a first input key is provided on the first housing, and is covered with the second housing in the first and second configurations and is exposed in the third configuration.

Abstract: A portable terminal apparatus includes a first enclosure, a second enclosure, and a control unit. The second enclosure takes modified forms including a first form and a second form. The second enclosure is closed over the first enclosure in the case of the first form. The second enclosure is separated from the first enclosure in the case of the second form. In the case of the first form, the control unit controls communication to be performed between the first enclosure and the second enclosure via a contact between the first enclosure and the second enclosure. In the case of the second form, the control unit controls communication to be performed between the first enclosure and the second enclosure by a radio communication unit.

Abstract: A secure data communications system with an enhanced function of preventing information leakage. The system includes a user terminal and a router. The router has a security condition definition unit and a storage unit to receive and store a set of security conditions. A packet parser identifies and parses a packet produced by a file transfer application protocol and extracts from that packet a destination address and a security condition ID that the sending user has specified for a file in the packet. The packet parser discards the packet to prevent information leakage if the extracted destination address does not satisfy the security condition corresponding to the user-specified security condition ID. The user terminal has a security condition user interface that requests the router to provide information about security conditions and gives a security condition ID to each file to indicate which security condition the sending user has specified.

Abstract: The provider network that interconnects user networks includes a plurality of edge routers. At least one of the plurality of edge routers includes an obtaining unit for obtaining information of a packet transferred by the edge router itself, a creating unit for creating a flow list in which flow information of packets transferred from the user network side to the provider network side is registered based on the packet information, a monitoring unit for monitoring a traffic state of a flow of each packet registered in the flow list based on information of packets transferred from the provider network to the user network, and a notifying unit for notifying the traffic state of the flow registered in the flow list to a maintenance engineer.

Abstract: To collectively manage user networks connected to a virtual private network (VPN) without such time and effort necessary for an operation management server to be ready for an expansion MIB for each of vendors.

Abstract: A route computing system is capable of computing routes at a high speed at a low cost without the need for replacing the hardware of a transmission device. The transmission device has a destination information receiving unit for receiving destination information indicative of the destination of a packet from a terminal device. The transmission device also has a destination information storing unit for storing the destination information, and a routing packet sending unit for receiving a routing protocol packet from another transmission device and sending the routing protocol packet to the terminal device. The terminal device has a routing packet receiving unit for receiving the routing protocol packet sent from the routing packet sending unit. The terminal device also has a computing unit for recomputing the destination information based on the routing protocol packet, and a destination information sending unit for sending the recomputed destination information to the destination information receiving unit.

Abstract: A terminal infected by an e-mail with a new virus is identified by storing information of e-mails as mail archive information, storing a distribution request history in which each distribution request of an email is associated with a terminal identification information which serves as a terminal information for identifying the terminal that has issued the distribution request, checking the mail archive and identifying an e-mail with a new virus, when definitions of new viruses have been added in a virus definition file, obtaining account information of the identified e-mail with the new virus, and extracting the terminal identification information of the terminal that issued the distribution request of the e-mail with the new virus, based upon both the obtained account information and the distribution request history.

Abstract: A proxy server includes a harmful site information memory portion storing source site identification information for identifying a Web site that provides harmful data, an access log memory portion storing a data obtaining log indicating which terminal device has obtained which data, an access control portion making the terminal device obtain the data that the terminal device tried to obtain if the data is not the harmful data provided by the Web site related to the source site identification information, and that refuses the terminal device to obtain the data if the data is the harmful data, a harmful site access terminal identifying portion identifying a terminal device that has obtained the harmful data provided by the source site related to new source site identification information, based on the data obtaining log, and a message transmitting portion requesting the router to perform a quarantine process for the identified terminal device.

Abstract: In the presence information management method of the present invention, the e-mail address of the user and the terminal address of a terminal are extracted upon receipt of an e-mail transmission request, the e-mail address and terminal address correspondence table is retrieved by using the extracted e-mail address, and the extracted terminal address is registered in the e-mail address and terminal address correspondence table if the retrieved terminal address does not correspond to the extracted terminal address. Thus, the user can automatically update presence information with his/her e-mail transmission request.

Abstract: A filter-information transmitting/receiving unit transmits path information with the filter information when the filter information is set by a filter setting unit, and receives the path information when the filter information is set in other network device. A filter-combining determining unit determines whether redundant filter information with the other network device is to be combined or deleted, based on the filter information and the path information. A filter control unit issues a filter-setting request or a filter release request based on a result of determination by the filter-combining determining unit.

Abstract: A secure data communications system with an enhanced function of preventing information leakage. The system includes a user terminal and a router. The router has a security condition definition unit and a storage unit to receive and store a set of security conditions. A packet parser identifies and parses a packet produced by a file transfer application protocol and extracts from that packet a destination address and a security condition ID that the sending user has specified for a file in the packet. The packet parser discards the packet to prevent information leakage if the extracted destination address does not satisfy the security condition corresponding to the user-specified security condition ID. The user terminal has a security condition user interface that requests the router to provide information about security conditions and gives a security condition ID to each file to indicate which security condition the sending user has specified.

Abstract: A router includes a label-mapping-message receiving unit, a passing-node managing unit, and a passing-node selecting unit. The label-mapping-message receiving unit receives a label-mapping message including label information and PV TLV information from all adjacent nodes. The passing-node managing unit registers received label information and PV TLV information to manage the information. When a line fault occurs in a network, the passing-node selecting unit selects PV TLV information that does not include an identifier of the router itself from among registered PV TLV information. Thus, an optimal path is determined based on selected PV TLV information so that a loop does not occur in the network.

Abstract: Network interconnection apparatus and method capable of efficiently guaranteeing optimum QoS suited to the status of actual traffic and network, whereby high-performance network interconnection is achieved without entailing lost calls. Routing information managing means manages routing information of an ATM network, and statistical information managing means manages statistical information on the traffic of a LAN. QoS setting means sets QoS which the ATM network ought to guarantee, based on the statistical information, and QoS guarantee determining means determines based on the routing information whether or not the set QoS can be guaranteed. If it is judged that the QoS cannot be guaranteed, QoS adjusting means adjusts the QoS so that the QoS can be guaranteed. Call connection control means connects call according to the QoS which can be guaranteed.

Abstract: The provider network that interconnects user networks includes a plurality of edge routers. At least one of the plurality of edge routers includes an obtaining unit for obtaining information of a packet transferred by the edge router itself, a creating unit for creating a flow list in which flow information of packets transferred from the user network side to the provider network side is registered based on the packet information, a monitoring unit for monitoring a traffic state of a flow of each packet registered in the flow list based on information of packets transferred from the provider network to the user network, and a notifying unit for notifying the traffic state of the flow registered in the flow list to a maintenance engineer.