IP-Fax Function

-TerminologyH.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.

SIP

A communication control protocol for Internet telephone that utilizes VoIP (which converts voice information to IP packets) and is equipped with func- 3 tions such as transfer and caller number display similar to telephone network compared to other protocols such as H.323.

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.

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.

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 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.

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

71