Specifications

138
Glossary
Gigaset SL75 WLAN / en / A31008-M700-B112-1-7619 / glossary.fm / 24.4.06
Version05.08.2005
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
See User recognition.
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-
work).
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).