IP-Fax Functions
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Reference
p.145 “Types of Reception”
“Connecting the Machine”, General Settings Guide
“System Settings”, General Settings Guide
“Facsimile Features”, General Settings Guide
Terminology
The following are words you should know when using IP-Fax:
❖ H.323
A multimedia communication protocol that sends or receives files via one-to-
one communication over a LAN or the Internet.
❖ 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 creating, modifying, and terminating sessions with one or more
participants.
❖ Gatekeeper (VoIP gatekeeper)
A gatekeeper manages devices connected to an IP network and converts alias
telephone numbers to IPv4 addresses and performs authentication functions.
In addition, a gatekeeper governs band (transmission rate assignment) and
access control.
❖ 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: Receives SIP requests and forwards them on behalf of the requestor.
• Register server: Receives information about a device's address within an IP
network and registers them in the database.
• Redirect server: Used to inquire the destination address.
❖ Gateway (VoIP gateway)
A gateway connecting a telephone network and IP network, it has functions
such as protocol conversion for connecting these different networks, and also
connects communication devices (telephones, facsimiles, etc.) to a LAN or
other network.
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