摘要:
A server apparatus, a mobile terminal, an electric appliance, a communication system, a communication method and a program for notifying a mobile terminal user in the open of the cause of a failure of P2P connection. In a communication system, an electric appliance (101), a server apparatus (103) and a mobile terminal (105) each detect a failure in preparation for P2P connection between the electric appliance (101) and the mobile terminal (105). When the electric appliance (101) detects the failure, it notifies the mobile terminal (105) of the failure via the server apparatus (103). When the server apparatus (103) detects the failure, it notifies the mobile terminal (105) of the failure. The mobile terminal (105) notifies the user of the failure detected by the mobile terminal itself or of the failure notified of by the server apparatus (103).
摘要:
A communication terminal apparatus wherein even if there occurs a dropout or overtaking of call control messages, the current service can be continued without increasing the load of an apparatus such as a server in the network. In this apparatus, a VoIP call control part (103) performs call controls including both a call establishment of a VoIP telephone conversation using a wireless LAN system and a call disconnection thereof. A line switching call control part (104) performs call controls including both a call establishment of a line switching telephone conversation using a mobile communication (cellular) system and a call disconnection thereof. A handover part (105) determines the reception quality of the wireless LAN system and that of the mobile communication (cellular) system and controls, based on the determination results, the handover between the wireless LAN system and the mobile communication (cellular) system.
摘要:
A communication system and communication apparatus that can improve the stability and security of communication. In this communication system, a communication apparatus (101) generates, at a predetermined interval, a keep-alive message based on key information stored in a key information database part (113) and transmits the keep-alive message to a communication apparatus (102). The communication apparatus (102) receives the keep-alive message from the communication apparatus (101), and a key information updating part (157) updates (for example, corrects), based on this keep-alive message, the data stored in a key information database part (154). In this way, the information stored in the communication apparatus (101) and the information stored in the communication apparatus (102) can be made common, and problems, such as a communication interruption, caused by disagreement between the information stored in the communication apparatus (101) and the information stored in the communication apparatus (102) can be solved, resulting in improvement of the stability and security of communication between the two communication apparatuses.
摘要:
There are disclosed a server apparatus, an electric device, a mobile terminal and so on that reduce the processing load of a server and also reduce the bands used for access lines connected by the server to the Internet. According to the apparatus, an electric device (101) receiving an invocation request from a mobile terminal (105) changes the settings of an NAT router (102) and acquires and transmits information of the setting as changed and an Internet side global IP address of the NAT router (102) to the mobile terminal (105), which uses these information to transmit a P2P session establishment request to the electric device (101), thereby establishing a session between the mobile terminal (105) and the electric device (101).
摘要:
A communication terminal apparatus, an electric device and so on that apply an appropriate protocol. A message, which includes a protocol type designated by an electric device (102) with which a mobile telephone (101) is to directly connect and also includes the address and setting information of an NAT router (103) connected to the electric device (102), is transmitted from a server apparatus (104) disposed on the Internet to the mobile telephone (101). Then, the mobile telephone (101) applies, out of acquired protocol types, a protocol used to connect with the electric device (102), and uses the address and setting information of the NAT router (103) to connect with the electric device (102) via the NAT router (103).
摘要:
A communication terminal apparatus wherein even if there occurs a dropout or overtaking of call control messages, the current service can be continued without increasing the load of an apparatus such as a server in the network. In this apparatus, a VoIP call control part (103) performs call controls including both a call establishment of a VoIP telephone conversation using a wireless LAN system and a call disconnection thereof. A line switching call control part (104) performs call controls including both a call establishment of a line switching telephone conversation using a mobile communication (cellular) system and a call disconnection thereof. A handover part (105) determines the reception quality of the wireless LAN system and that of the mobile communication (cellular) system and controls, based on the determination results, the handover between the wireless LAN system and the mobile communication (cellular) system.
摘要:
Mobile wireless communication system 100 of the present invention has virtual private network relay apparatus 105 which establishes an IPsec tunnel with network relay apparatus 104 installed on private network 102 via public network 101, further establishes the IPsec tunnel with mobile wireless terminal apparatus 110 and relays connection of mobile wireless terminal apparatus 110 from public wireless LAN system 103 to private network 102, connection authentication server 108 that authenticates connection of mobile wireless terminal apparatus 110 to public wireless LAN system 103, and wireless LAN access point 109 that relays connection authentication procedures of public wireless LAN 107 performed between mobile wireless terminal apparatus 110 and connection authentication server 108.
摘要:
A mobile radio communication system (100) includes: a virtual private network relay device (105) for establishing an Ipsec tunnel with a network relay device (104) arranged in a private network (102) via a public network (101) and establishing an Ipsec tunnel with a mobile radio terminal device (110), thereby relaying connection from a public radio LAN system (103) of a mobile radio terminal device (110) to a private network (102); a connection authentication server (108) for authenticating the connection to the public radio LAN system (103) of the mobile radio terminal device (110); and a radio LAN access point (109) for relaying the connection authentication procedure of the public radio LAN (107) performed between the mobile radio terminal device (110) and the connection authentication server (108).
摘要:
A server apparatus, a mobile terminal, an electric appliance, a communication system, a communication method and a program for notifying a mobile terminal user in the open of the cause of a failure of P2P connection. In a communication system, an electric appliance (101), a server apparatus (103) and a mobile terminal (105) each detect a failure in preparation for P2P connection between the electric appliance (101) and the mobile terminal (105). When the electric appliance (101) detects the failure, it notifies the mobile terminal (105) of the failure via the server apparatus (103). When the server apparatus (103) detects the failure, it notifies the mobile terminal (105) of the failure. The mobile terminal (105) notifies the user of the failure detected by the mobile terminal itself or of the failure notified of by the server apparatus (103).
摘要:
According to the present invention, in an integrated wireless communication system composed of a wireless LAN system 200 in which wireless communication is performed with mobile terminals 400 of a wireless LAN area 204, and a cellular system 100 that is linked to this wireless LAN system 200 via exchange equipment 300, a request from an external terminal for communication with a mobile terminal 400 or a request from a mobile terminal 400 for communication with an external terminal is received, and a communication path is selected and communication performed either via the cellular system 100 or via the wireless LAN system 200 according to this communication request.