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Chapter
12
12.21 V
VMU
Voice Mail Unit. The integrated voice server provides a voice mailbox for each user, as well
as a general voice mailbox and features such as Personal Assistant, Automatic Attendant
and Audiotex.
VoIP
Voice over IP. Term designating voice transmission over a data network using the Internet
protocol.
VoWLAN Voice over WLAN. Term designating voice transmission over a data network using the
WLAN.
VPN
Virtual Private Network. Private data network that uses the public telecommunications
infrastructure (e.g. the Internet) while maintaining confidentiality by means of tunneling
protocols and security procedures.
12.22 W
WAN
WIFI
WINS
WLAN
WLAN
association
WLAN client
WLAN
handset
8AL91217USAA - Ed. 01 - July 2018 - Installation Manual
Glossary
Wide Area Network. A geographically dispersed telecommunications network. The
term WAN is used in contrast to LAN.
Wireless Fidelity.
Windows Internet Naming Service. In Windows environment, the service that
manages the correspondence between client station names and LAN locations
relative to their IP addresses.
Wireless Local Area Network. A LAN that provides networking using radio
frequencies rather than wires for communication.
An association refers to the connection between the WLAN client and the AP. There
are two types of associations: passive scanning and active scanning. In passive
scanning, APs send out information such as SSIDs and supported rates, while the
client passively scans the radio channels for beacons and probe responses. The
client then selects an AP. The client keeps scanning even after the association is
made (to support roaming). In active scanning, clients send out probe requests. If
the probe request contains an SSID, only the APs with the correct SSID will
respond. If the probe request contains a broadcast, all the APs will respond.
Any PC, PDA, or phone set that supports the 802.11a and 802.11b/g protocols can
be a WLAN client.
A wireless terminal that is connected to the system through a wired Access Point
(AP). The radio connection between the wireless terminal and the AP is specified by
the 802.11 family of specifications. The WLAN handset range includes Alcatel-
Lucent OmniTouch 8118/8128 WLAN Handsets. WLAN handsets are sometimes
referred to as MIPT (Mobile IP Touch) handsets.
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