AT&T Turbo 802.11b - Manual (Page 36)

Glossary
AT&T Plug&Share ™ Wireless PCI Adapter 22 Mbps Turbo 6500B4X 36
VoIP
(Voice Over Internet Protocol) is a method used to deliver voice information over the Internet. VoIP
services allow telephone calls using your PC or LAN.
WEP
WEP (Wired Equivalent Privacy) is the most common security protocol for wireless LANs, providing the
"equivalent" security available in hardwired networks.
Wireless LAN (WLAN)
Wireless LANs are local area networks that use wireless communications for transmitting data.
Transmissions are usually in the 2.4 GHz band. WLAN devices do not need to be lined up for
communications like infrared devices. WLAN devices use routers which are connected to the wired LAN
and provide connectivity to the LAN. The radio frequency of WLAN devices is strong enough to be
transmitted through non-metal walls and objects, and can cover an area up to a thousand feet. Laptops
and notebooks use wireless LAN PCMCIA cards while PCs use plug-in cards to access the WLAN.
WAN
WAN (Wide Area Network) is a communications network that covers a wide geographic area such as a
country (contrasted with a LAN, which covers a small area such as a company building).