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Glossary
Gigaset SL75 WLAN / en / A31008-M700-B112-1-7619 / glossary.fm / 24.4.06
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UPnP (Universal Plug and Play)
Enables spontaneous linking of net-
works: UPnP-compatible devices carry
out the network configuration auto-
matically when they log in to the net-
work. The devices make services availa-
ble to the network and use the services
of other devices in the network.
You can activate/deactivate UPnP for
the handset via the Web configurator:
UPnP device (handset functions/data
can be read by other network subscrib-
ers) and UPnP control point (the hand-
set can access other devices and their
data).
URI (Uniform Resource Identifier)
Character string used to identify
resources (e.g. http://siemens.com,
files, Email recipient).
On the
Internet
URIs are used for the
standardised identification of
resources. URIs are also referred to as
the SIP address.
URIs can be entered as a number in the
handset. By dialling a URI you can call
an Internet subscriber equipped with
VoIP.
URL (Universal Resource Locator)
Globally unique address of a domain on
the
Internet
.
A URL is a subtype of
URI
. URLs identify
a resource by its location) on the
Inter-
net
. For historical reasons the term is
often used as a synonym for URI.
User ID
.
User recognition
Name/number combination for access
e.g. to your SIP account.
UTC (Universal Time Conversion)
Coordinated global time. Basis for inter-
national time distribution. The local
time in Germany, for example, is UTC
plus an hour.
V
VoIP (Voice over Internet Protocol)
Telephone calls are no longer estab-
lished and transmitted over the tele-
phone network but over the
Internet
(or other IP networks).
VoIP Provider
See
SIP Provider
.
W
WAN (Wide Area Network)
Wide-area network that is unrestricted
in terms of area (e.g.
Internet
).
Wait melody (Music on hold)
Music is played while you are
consult-
ing
or
toggling
. The waiting caller
hears a wait melody while on hold.
WEP (Wired Equivalent Privacy)
Standard algorithm for
encryption
in
the
WLAN
. WEP controls access to the
network
(when shared key is set) and
ensures the secrecy and the integrity of
data.
Parameters: key length, WEP key,
authentication (shared key/open sys-
tem).
Wireless Network
See
WLAN (Wireless Local Area Net-
.
WLAN (Wireless Local Area Network)
Wireless
LAN
. Can be operated as an
infrastructure
or as an
ad-hoc net-
work
. Transmission takes place via a
specific
radio channel
.
WMM
TM
(Wi-Fi Multimedia)
Procedure to determine
Quality of
Service
in WLANs. WMM
TM
allocates
bandwidths for various applications.
WPA (Wireless Protected Access)
Encryption system for a WLAN.
Improvement on WEP as it is a more
complex method of key generation
(TKIP, AES).