Making use of the frame relay circuit which is used for data communication the technology which the voice data sending and receiving is done. Cost is low, but low speed for the sake of, the optimum to the network of small-to-medium-sized scale. The sound quality was worse than VoATM, VoIP compared to was assumed that it is good, but because VoIP technology develops quickly, it is said that presently it has become the sound quality which almost is equal to VoIP
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The computer XML based language in order to construct the user interface which is operated in the indication with sound. It can utilize with the automatic response system and the like which is used in information service of the portable telephone and the support window etc of enterprise.
VoiceXML is utilized combining with the speech recognition engine and the speech synthesis engine, etc such as calling off the choices and accepting the input with sound and calling off the contents which correspond to input, can describe the structure of conversational application with XML. So far, .
In addition, the information service which can operate the portable telephone enterprise and the like with voice input/output (is called the “voice portal” and so on) to be also an example which is offered, special technology with VoiceXML as for the possession person of the contents not to need and to offer the audio corresponding Web sight it is possible.
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The telephone network and the equipment which relays between IP network. Using Internet and Intranet, the device which is used in VoIP which speaks by telephone. As for the VoIP gateway,
The VoIP gateway is placed in the boundary of the telephone network and IP network, converts the analog voice data which is input from the telephone line to the digital data, divides into the IP packet and transmits on IP network. Simultaneously, it reconstructs the IP packet which is received from IP network side to analog sound, sends out to the telephone network. Also compresses the digital voice data and extends the VoIP gateway.
VoPN
Reading: [vuopienu]
Full spelling: Voice over Packet Network
Field:
Network technology > VoIP/IP telephone > VoPN
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Via packet transmission network general term of the technology which the voice data sending and receiving is done. Inside the company LAN and it is used for the integration and the like of the extension. Integrating the data and sound, there is VoIP and the like which uses general-purpose IP net such as VoATM, use frame relay VoFR and Internet which it is possible, use ATM in communication method to handle. Integrating sound and the data with the communications network of one, because. Generally, VoATM in - for large-scale, VoFR is said for small-scale, VoIP for cooperation with Internet, with.
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VPN
Reading: The buoy tweet n
Full spelling: Virtual Private Network
Field:
LAN > VPN > VPN
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Like whether the public circuit just it is the leased circuit of, the service which can be utilized. Rather than in connection and the like between base of network inside enterprise, it is used introducing the leased circuit cost can be held down.
Old, being something which the telephone line (audio telephone call service) with was offered, it was the service which relaying the public network, connects the extension and the like of the big business which has base in entire country. Recently to the thing of connection service between base of data communication it points exclusively, it is the service which connects mutually via the backbone network where the communication carrier has inside LAN enterprise. At one time, introducing the private line between each base, it had communicated directly, but low connection between base becomes possible at cost byto the backbone of the carrier. With the backbone the data of various enterprises existing together, it means to flow, but as for the data because with certifying and encoding strictly it is protected & is managed, danger such as radio interference and leakage and wiretap is low.
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VPN gateway
Reading: The buoy tweet the n gateway
Full spelling: Virtual Private Network Gateway
Field:
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Encoding channel, the terminating set in order to utilize the VPN technology which creates a state where it is connected with the leased circuit hypothetically.
The VPN gateway in the contact point of external network and such as LAN such as Internet to be placed internal network, after communication from inside being encoded in the VPN gateway, it appears in external network.
And being decoded with the VPN gateway of address network, it is received to the intended computer entering inside network. Directly being received by the computer of address, when it is decoded, it is.
As for VPN gateway function being offered by the software, there are also times when it is operational on the server and the rooter, but also the private hardware is sold. In addition, from the fact that
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VPN pass through
Reading: The buoy tweet n pass through
Field:
LAN > VPN > VPN pass through
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At functional one which the rooter and the like has, make the packet of the VPN client pass who had the private address inside LAN on Internet side.
When with the function of NAT and the like which, converts global IP address and private IP address from the machine inside LAN the connection to Internet it mediates in the rooter which is categorized to the boundary of Internet and LAN, but
Because of this, as for the packet for VPN the function that is needed, it is made to pass that way, this is called VPN pass through. The protocol of IPsec and PPTP and L2TP etc is used in VPN, but in order to do VPN pass through, because.
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