Abstract: A composition for film formation containing a polycyclic polyphenolic resin having repeating units derived from at least one monomer selected from the group consisting of aromatic hydroxy compounds represented by the formulas (1-0), (1A), and (1B), wherein the repeating units are linked by a direct bond between aromatic rings:

Abstract: When a failure occurs in a counterpart company network, the cause of the failure is specified. A failure detection apparatus 1 that detects a failure in a counterpart company network includes a hierarchy level detection unit 11 detecting the number of hierarchy levels indicating a depth of hierarchy levels of the counterpart company network by transmitting a request including the maximum number of transfers to the counterpart company network, a failure location specifying unit 13 specifying a hierarchy level of a failure location in the counterpart company network by transmitting the request to the counterpart company network in a case where the failure in the counterpart company network has been detected, and a determination unit 14 determining that the failure is present in a network core apparatus of the counterpart company network in a case where the hierarchy level of the failure location is a hierarchy level at a depth less than the number of hierarchy levels of the counterpart company network.

Abstract: When congestion occurs, the ENUM/DNS server can identify a priority packet without relaying on origin terminal information. An ENUM/DNS packet priority control system 100 includes a call control server 10 that, upon receiving a connection request from a terminal, determines whether or not the connection request is to be subjected to priority processing based on predetermined determination logic, and generates an ENUM/DNS packet that has a priority flag upon determining that the connection request is to be subjected to priority processing. The ENUM/DNS packet priority control system 100 also includes an ENUM/DNS server 20 that, upon receiving an ENUM/DNS packet that has the priority flag, determines that the packet is to be subjected to priority processing, and transmits, to the call control server 10, connection destination information that corresponds to the call destination terminal.

Abstract: Component A: a carboxymethyl cellulose having a degree of carboxymethyl substitution per anhydroglucose unit of 0.45 or more or a salt thereof and Component B: a saturated carboxylic acid having 6 or less carbon atoms or a salt thereof are contained.

Abstract: Unexpected call disconnection during normal time is prevented. When a gateway device 1 installed on a POI border receives RTP packets even though reception of RTCP packets is stopped, the gateway device 1 generates RTCP packets and sends out the RTCP packets to the gateway device 1's own network side or the gateway device 1 generates a call control signal showing that media transfer is continued and sends out the call control signal to the gateway device 1's own network side. Thereby, even in the case of performing interruption monitoring of RTCP packets within the gateway device 1's own network, it is possible to prevent unexpected call disconnection during normal time accompanying change in RTCP packet sending-out conditions.

Abstract: When congestion occurs, the ENUM/DNS server can identify a priority packet without relaying on origin terminal information. An ENUM/DNS packet priority control system 100 includes a call control server 10 that, upon receiving a connection request from a terminal, determines whether or not the connection request is to be subjected to priority processing based on predetermined determination logic, and generates an ENUM/DNS packet that has a priority flag upon determining that the connection request is to be subjected to priority processing. The ENUM/DNS packet priority control system 100 also includes an ENUM/DNS server 20 that, upon receiving an ENUM/DNS packet that has the priority flag, determines that the packet is to be subjected to priority processing, and transmits, to the call control server 10, connection destination information that corresponds to the call destination terminal.

Abstract: When a failure occurs in a counterpart company network, the cause of the failure is specified. A failure detection apparatus 1 that detects a failure in a counterpart company network includes a hierarchy level detection unit 11 detecting the number of hierarchy levels indicating a depth of hierarchy levels of the counterpart company network by transmitting a request including the maximum number of transfers to the counterpart company network, a failure location specifying unit 13 specifying a hierarchy level of a failure location in the counterpart company network by transmitting the request to the counterpart company network in a case where the failure in the counterpart company network has been detected, and a determination unit 14 determining that the failure is present in a network core apparatus of the counterpart company network in a case where the hierarchy level of the failure location is a hierarchy level at a depth less than the number of hierarchy levels of the counterpart company network.

Abstract: Unexpected call disconnection during normal time is prevented. When a gateway device 1 installed on a POI border receives RTP packets even though reception of RTCP packets is stopped, the gateway device 1 generates RTCP packets and sends out the RTCP packets to the gateway device 1's own network side or the gateway device 1 generates a call control signal showing that media transfer is continued and sends out the call control signal to the gateway device 1's own network side. Thereby, even in the case of performing interruption monitoring of RTCP packets within the gateway device 1's own network, it is possible to prevent unexpected call disconnection during normal time accompanying change in RTCP packet sending-out conditions.