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Internet Phone Services Simplified by Neil Anderson, Jim Doherty

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Glossary

Numerics

911

Emergency number in the United States.

2.4 GHz

Operating frequency shared by cordless telephones, wireless home networks (802.11b/g WiFi), and unfortunately, microwave ovens and other devices that can cause interference.

5.8 GHz

Operating frequency for newer cordless telephones and wireless home networks (802.11a WiFi), with less interference (so far) from other devices.

A-B

bandwidth

The speed or capacity of data transfers across a network or a portion of a network.

binary

A numbering system based on 1s and 0s. This is the basis for all computer languages.

bit

Short for binary digit; this is a single digit of information, which is a 1 or 0.

broadband

A term used to describe high-speed Internet service. The term comes from the fact that ...

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