摘要:
A VPN device capable of eliminating situations where cross calls occur is provided. The VPN device includes: an identification information acquisition unit that acquires first identification information which is identification information of a communication terminal (103) and second identification information which is identification information of a communication terminal (303); a priority determination unit that determines the priority for initiating a session between the communication terminal (103) and the communication terminal (303) based on the first and second identification information; a message type generation unit that designates the type of a message relating to call control to be transmitted to the communication terminal (303) based on the priority; and a transmission unit that transmits a message of the designated type to the communication terminal (303).
摘要:
An IP telephone system includes a source IP telephone apparatus, a Web server and an ENUM server. The source IP telephone apparatus is connected to an IP network. The Web server stores predetermined information regarding a user of the source IP telephone apparatus and transmits, to a destination IP telephone apparatus, the predetermined information in response to a request from the destination IP telephone apparatus. The ENUM server stores a NAPTR resource record which includes a URI utilized for obtaining the predetermined information stored in the Web server. In the IP telephone system, the destination IP telephone apparatus transmits, to the ENUM server, a request for a NAPTR resource record of the source IP telephone apparatus and transmits, to the Web server, a request for the predetermined information regarding the source IP telephone apparatus according to the obtained NAPTR resource record.
摘要:
An IP telephone system includes an IP telephone apparatus, a Web server and an ENUM server. The IP telephone apparatus is connected to an IP network. The Web server registers talk volume information corresponding to a telephone number assigned to the IP telephone apparatus. The ENUM server registers a NAPTR resource record in which a URI specifies link data related to the talk volume information registered in the Web server. In the IP telephone system, the IP telephone apparatus that has received a call transmits, to the ENUM server, a query for a NAPTR record corresponding to a targeted recipient phone number. The IP telephone apparatus then transmits, to the Web server, a request for the talk volume information corresponding to the targeted recipient phone number according to the returned NAPTR resource record, and adjusts the talk volume according to the returned talk volume information.
摘要:
An IP telephone number query system includes a terminal, a Web server, and an ENUM server. The terminal displays a call recipient profile hypertext markup language (html) that is assigned a HTML document file name. The Web server includes a phonebook searcher that has a plurality of call recipient profile htmls, and returns a selected call recipient profile html in response to a request from the terminal. The ENUM server has a database, a query issuer and a reversed query issuer. The database stores a plurality of NAPTR resource records in association with an ENUM domain name, each NAPTR resource record containing a URI that at least includes a telephone number and a HTML document file name. The query issuer searches the database in response to a query by an ENUM domain name and returns a NAPTR resource record corresponding to the ENUM domain name. The reversed query issuer searches the database in response to a query by a URI of a HTML document file name and returns a URI of a telephone number corresponding to the ENUM domain name having the URI of the HTML document file name.
摘要:
An IP telephone system comprises an IP telephone that performs voice communication via an IP network, a carrier that manages voice communication for the IP telephone via the IP network and a server that returns NAPTR resource record(s) in response to a request from the IP telephone. In the IP telephone system, when the IP telephone performs voice communication via the IP network, the IP telephone transmits, to the server, a request for NAPTR resource record(s) that correspond(s) to the telephone number of the destination terminal. When NAPTR resource record(s) is(are) stored, voice communication is directly performed between the IP telephone and the destination terminal via the IP network according to the NAPTR resource record. On the other hand, when NAPTR resource record(s) is(are) not stored, the carrier manages calls, and voice communication is performed between the IP telephone and the destination terminal via the IP network.
摘要:
A television receiver having a liquid crystal display device includes a receiver having a electromagnetically shielded case and a receiving circuit provided in the shielded case and electrically connected to an antenna for producing audio signals and video signals. A liquid crystal display panel of the liquid crystal display device is electromagnetically shielded by a transparent and conductive shielding film for shielding the liquid crystal display panel.
摘要:
A television receiver employs a liquid crystal display panel mounted in a unit which can be set into either a closed position in which the display panel is disposed within a recessed portion of the case of the television set, and an opened position in which ambient light passes through the display panel to be reflected from a mirror towards the viewer. In conjunction with this arrangement, operating control members are positioned to facilitate one-hand operation of the receiver, and the largest circuit components and batteries are positioned with respect to the display panel and control members such as to minimize the overall size of the receiver.
摘要:
In a networking method of a communication apparatus in which global address information and port information are acquired on a network, a virtual private network is established with another communication apparatus using the global address information and the port information to perform the communication, the networking method includes determining whether communication data that is transmitted from the communication apparatus is a first protocol or a second protocol, and starting a data transmission through the network before the virtual private network is established when the communication apparatus determines that the communication data is the first protocol, and starting a data transmission after the virtual private network is established when the communication apparatus determines that the communication data is the second protocol.
摘要:
An IP telephone system comprises an IP telephone that performs voice communication via an IP network, a carrier that manages voice communication for the IP telephone via the IP network and a server that returns NAPTR resource record(s) in response to a request from the IP telephone. In the IP telephone system, when the IP telephone performs voice communication via the IP network, the IP telephone transmits, to the server, a request for NAPTR resource record(s) that correspond(s) to the telephone number of the destination terminal. When NAPTR resource record(s) is(are) stored, voice communication is directly performed between the IP telephone and the destination terminal via the IP network according to the NAPTR resource record. On the other hand, when NAPTR resource record(s) is(are) not stored, the carrier manages calls, and voice communication is performed between the IP telephone and the destination terminal via the IP network.
摘要:
An internal terminal that connects to a DNS server, the server storing and managing a telephone number for communication and an external NAPTR record, the internal terminal including: a terminal communication controller that accesses the DNS server and notifies the DNS server of a telephone number for the communication; a terminal-side controller that obtains, when the DNS server is informed of the communication telephone number, an external NAPTR record being corresponding to the communication telephone number; an IP service presence determination unit that determines whether the external NAPTR record has function service information related to IP communication; and a display that displays the available IP communication service function of the destination corresponding to the communication telephone number, when it is determined that the external NAPTR record has the IP communication service function.