IP Dual Port PBXgateway and Remote System Administrator’s Guide
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PBX or KTS.
ETI
The Ensemble Transport Interface. The uni-directional transport
protocol used for the internal network distibution of DAB (Digital
Audio Broadcast) channel broadcasts
F
FCC
Federal Communications Commission - The FCC has the authority
to regulate all interstate communications originating in the United
States.
Free Space
Free space in a storage device. The space that in any given time
does not belong to any file or the file system itself (system
information). New files will be stored in the free space area.
Firewall
A firewall is either the program or the computer it runs on, usually
an Internet gateway server that protects the resources of one
network from users from other networks. Typically, an enterprise
with an intranet that allows its workers access to the wider Internet
will want a firewall to prevent outsiders from accessing its own
private data resources.
Flash (File)
Flash memory is a non-volatile memory device that retains its data
after the power is removed.
Flow Control
The way in which information is controlled in a network to prevent
loss of data when the receiving buffer is near its capacity.
FTP
File Transfer Protocol - A very common method of moving files
between two network devices. FTP is a way to login to another
network device for the purposes of retrieving and/or sending files.
FTP was invented and in wide use long before the advent of the
World Wide Web and originally was always used from a text-only
interface.
FXO
Foreign Exchange Office - An interface that connects to the Public
Switched Telephone Network's (PSTN) central office and is the
interface offered on a standard telephone.
G
G.165
The ITU G.165 Recommendation was initially developed to
standardize echo canceller performance and ensure network
interoperability.
G.729A
G.729 is an audio data compression algorithm for voice that
compresses voice audio in chunks of 10 milliseconds. Music or
tones such as DTMF or Fax tones cannot be transported reliably
with this codec, and thus use G.711
G.711
G.711 is the international standard for encoding telephone audio on
a 64 kbps channel. It is a pulse code modulation (PCM) scheme
operating at an 8 kHz sample rate, with 8 bits per sample.
H
I
Image
Refers to the currently configured software file.
Impedance
A measurement of resistance to current that a transmission medium
offers. It is measured in ohms.
In-band
Transmission within a frequency range normally used for information
transmission. Contrasted with out-of-band signaling, which uses
frequencies outside the normal range of information-transfer
frequencies?
Document Number: M-4100-MUC
Version: Rev AA
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