Abstract: The present invention relates to a communications relay device placed between networks. The communications relay device includes a unit of translating a content of a call control packet flowing between the networks, a unit of storing translation information for translating a content of a data packet for each session, a unit of translating a data packet in accordance with the stored translation information, a unit of analyzing a content of a call control packet flowing between a first communication device placed in the first network and a communication device for call control and registering translation information, and a unit of associating two pieces of translation information generated based on call control packets relevant to a session between communication devices placed in the first network.

Abstract: There is provided an apparatus including an information conversion apparatus provided to a relay device for relaying between a server to which a first network address is allocated and a client terminal to which a second network address is allocated, the information conversion apparatus including: an analyzer which analyzes a message corresponding to Layer 7 of an OSI basic reference model of a received packet and determines whether a URL expressed as a literal network address is included; and an address converter which mutually converts, when a URL expressed as a literal network address is included, the literal network address in the URL between the first network address and the second network address.

Abstract: There is provided a session sharing system for sharing sessions in a system in which one or more application servers cooperate for plural applications including: a first function processor; a second function processor; and a session information cooperation unit for converting session information of a session established with an application server, which is acquired from the first function processor or the second function processor, into a predetermined format and giving the converted session information to the second function processor or the first function processor, wherein the second function processor or the first function processor transmits, to an application server, a request message including the converted session information received from the session information cooperation unit, and the application server associates the converted session information included in the request message with session information that is generated based on a current communication processing protocol.

Abstract: There is provided a signal processing device including: a packet receiving means for receiving a packet from a transmitting communication device; and a packet processing means for transmitting the received packet received by the packet receiving means, simply as received or after processing by a packet converting means, to a receiving communication device that is a destination of the packet, wherein when a communication session between a first transmitting communication device and the receiving communication device is established and the session is shifted to have a connection between a second transmitting communication device and the receiving communication device, the packet converting means converts the received packet received from the second transmitting communication device so as to maintain a consecutiveness related to a content of packets to be transmitted to the receiving communication device.

Abstract: In the gateway device, the global address (GA) of the host table is set to the same value, and the GA and the local port (LP) of the transfer table are respectively set to the same value. In the IP packet analysis unit, the sorting unit analyzes the packet from the WEB client and sorts the destination of the packet, the redirection unit supplies the GA and the global port (GP) to the WEB client that has made a request by the packet according to a result of analysis to perform redirection, and the translation/transfer unit analyzes the packets transmitted through the sorting unit, translates the addresses (GA/LA: local address) and the ports (GP/LP) respectively with each other and transfers the translated packets, and then the procedure after connection establishment is repeated.

Abstract: There is provided an apparatus including an information conversion apparatus provided to a relay device for relaying between a server to which a first network address is allocated and a client terminal to which a second network address is allocated, the information conversion apparatus including: an analyzer which analyzes a message corresponding to Layer 7 of an OSI basic reference model of a received packet and determines whether a URL expressed as a literal network address is included; and an address converter which mutually converts, when a URL expressed as a literal network address is included, the literal network address in the URL between the first network address and the second network address.

Abstract: The present invention relates to a communications relay device placed between networks. The communications relay device includes a unit of translating a content of a call control packet flowing between the networks, a unit of storing translation information for translating a content of a data packet for each session, a unit of translating a data packet in accordance with the stored translation information, a unit of analyzing a content of a call control packet flowing between a first communication device placed in the first network and a communication device for call control and registering translation information, and a unit of associating two pieces of translation information generated based on call control packets relevant to a session between communication devices placed in the first network.

Abstract: There is provided an telephone control apparatus including storing unit for storing ringtone patterns for each incoming call group relative to one or more telephone terminals; and controlling unit for performing a ring operation of the telephone terminal belonging to the incoming call group which is to receive a call based on the ringtone pattern specified from the storing unit, wherein when a certain incoming call group among the plural incoming call groups becomes in a call receiving condition, the controlling unit specifies the ringtone pattern corresponding to the incoming call group in a call receiving condition by referring to the storing unit and controls the telephone terminals belonging to the incoming call group in the call receiving condition to perform a ring operation based on the ringtone pattern.

Abstract: A packet transfer device includes: an address conversion unit that allocates a global address to a plurality of private addresses of the plurality of private networks and converts address information and a port number included in a header of a received packet; a transfer unit that transfers a packet having the address information and the port number which are converted by the address conversion unit; and a session restriction unit that manages a number of sessions between a user terminal in the plurality of private networks and a device in the global network for each predetermined group and, when the number of sessions is greater than a number of available sessions which is set to each group, restricts the session of the user terminal which belongs to the group having the excess number of sessions.