Appendix f: glossary of network and voip terms – NetComm V85 User Manual

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V85 Desktop VoIP Phone User Guide

49

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Appendix F: Glossary of Network and VoIP Terms

10BASE-T

A designation for the type of wiring used by Ethernet networks with

a data rate of 10 Mbps. Also known as Category 3 (CAT 3) wiring.

See also data rate, Ethernet.

100BASE-T

A designation for the type of wiring used by Ethernet networks with

a data rate of 100 Mbps. Also known as Category 5 (CAT 5) wiring.

See also data rate, Ethernet.

ADSL

Asymmetric Digital Subscriber Line. The most commonly deployed

type of DSL for home users. The term asymmetrical refers to its

unequal data rates for downloading and uploading (the download

rate is higher than the upload rate). The asymmetrical rates benefit

home users because they typically download much more data from

the Internet than they upload.

analog

Of data, having a form is analogous to the data’s original

waveform

The voice component in DSL is an analog signal.

See also digital.

ATM

Asynchronous Transfer Mode A standard for high-speed

transmission of data, text, voice, and video, widely used within the

Internet. ATM data rates range from 45 Mbps to 2.5 Gbps. See also

data rate.

authenticate

To verify a user’s identity, such as by prompting for a password.

binary

The “base two” system of numbers, that uses only two digits, 0 and

1, to represent all numbers. In binary, the number 1 is written as 1, 2

as 10, 3 as 11, 4 as 100, etc. Although expressed as decimal numbers

for convenience, IP addresses in actual use are binary numbers; e.g.,

the IP address 209.191.4.240 is 11010001.10111111.00000100.1

1110000 in binary. See also bit, IP address, network mask.

bit

Short for “binary digit,” a bit is a number that can have two values, 0

or 1. See also binary.

bps

bits per second

bridging

Passing data from your network to your ISP and vice versa using

the hardware addresses of the devices at each location. Bridging

contrasts with routing, which can add more intelligence to data

transfers by using network addresses instead. The ADSL modem can

perform both routing and bridging. Typically, when both functions

are enabled, the device routes IP data and bridges all other types of

data. See also routing.

broadband

A telecommunications technology that can send different types of

data over the same medium. DSL is a broadband technology.

Broadcast

To send data to all computers on a network.

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