Справочник Пользователя для Ricoh 3245
IP-Fax Function
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-Terminology
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❖ H.323
A protocol that specifies the compression/decompression method of audio,
images, and data files sent or received via one-to-one communication over a
LAN or Internet.
images, and data files sent or received via one-to-one communication over a
LAN or Internet.
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❖ SIP
A communication control protocol for Internet telephone that utilizes VoIP
(which converts voice information to IP packets) and is equipped with func-
tions such as transfer and caller number display similar to telephone network
compared to other protocols such as H.323.
(which converts voice information to IP packets) and is equipped with func-
tions such as transfer and caller number display similar to telephone network
compared to other protocols such as H.323.
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❖ Gatekeeper (VoIP gatekeeper)
A gatekeeper manages devices connected to an IP network and converts alias
telephone numbers to IP addresses and performs authentication functions. In
addition, a gatekeeper governs band (transmission rate assignment) and ac-
cess control.
telephone numbers to IP addresses and performs authentication functions. In
addition, a gatekeeper governs band (transmission rate assignment) and ac-
cess control.
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❖ Gateway (VoIP gateway)
A gateway connecting a telephone network and IP network, it has functions
such as protocol conversion for connect these different network, and also con-
nects communication devices (telephones, facsimiles, etc.) to a LAN or other
network.
such as protocol conversion for connect these different network, and also con-
nects communication devices (telephones, facsimiles, etc.) to a LAN or other
network.
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❖ SIP server
A SIP server mediates connection requests between devices connected to an
IP network and is composed mainly of servers that have the following three
functions:
• Proxy server: Issues requests and relays responses.
• Registrar server: Receives registration of a users positional information
IP network and is composed mainly of servers that have the following three
functions:
• Proxy server: Issues requests and relays responses.
• Registrar server: Receives registration of a users positional information
within an IP network.
• Redirect server: Used to inquire the destination of a request.
Notes on Using IP-Fax
• You cannot send to a firewall-protected network.
• You cannot use telephones on a LAN.
• You cannot use telephones on a LAN.
Functions not Available for IP-Fax Transmission
You can use the following functions with standard fax transmission, but not IP-
Fax transmission:
• Batch transmission
• Manual dial
Fax transmission:
• Batch transmission
• Manual dial
JupterC2_Fax_EN-F_FM.book Page 71 Tuesday, November 30, 2004 2:47 PM