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Glossary
Gigaset S675 IP / ALGERIAN eng / A31008-M1915-A751-1-3T19 / glossary.fm / 27.10.08
Ve
rsion 4, 16.09.2005
Gateway
Connects two different
,
e.g. a router as an Internet gateway.
For phone calls from
to the tele-
phone network, a gateway has to be
connected to the IP network and the
telephone network (gateway/VoIP pro-
vider). It forwards calls from VoIP to the
telephone network as required.
Gateway provider
.
Global IP address
.
GSM
Global System for Mobile Communication
Originally, European standard for
mobile networks. GSM can now be
described as a worldwide standard. In
the USA and Japan national standards
are now more frequently supported
than in the past.
H
Headset
Combination of microphone and head-
phone. A headset makes handsfree
talking more convenient. There are
headsets available that are connected
to the handset by a cable.
HTTP proxy
Server via which the
can process their Internet traf-
fic.
Hub
Uses one
connect several
.
All data sent to the hub by one network
subscriber is forwarded to all network
subscribers.
See also:
I
IEEE
Institute of Electrical and Electronics Engineers
International body that defines stand-
ards in electronics and electrotechnol-
ogy, concerned in particular with the
standardisation of LAN technology,
transmission protocols, data transfer
rate and wiring.
Infrastructure network
Network with central structure: all
communicate via a
central
.
Instant messaging
Service that uses a client program to
allow chatting in real time, i.e. to send
brief messages to other subscribers on
the Internet.
Internet
. A series of protocols have
been defined for exchanging data,
known by the name TCP/IP.
All
are identifia-
ble via their
assigns a
to the
Important services on the Internet
include the World Wide Web (WWW), e-
mail, file transfer and discussion
forums.
Internet Service Provider
Enables access to the Internet for a fee.
IP (Internet Protocol)
TCP/IP protocol on the
. IP is
responsible for addressing subscribers
using
and
routes data from the sender to the
recipient. IP determines the paths
(routing) along which the data packets
travel.