Siemens Gigaset A580 IP User Manual page 183

Glossary
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 headphone. A headset enables easy hands-
free operation for telephone calls. There are headsets available that can be con-
nected to the handset by a cable.
HTTP Proxy
Server via which the
Uses one
Hub
All data sent to the hub by one network subscriber is forwarded to all network
subscribers.
£
Gateway, Router.
I
IEEE
Institute of Electrical and Electronics Engineers
International body that defines standards in electronics and electrical engineer-
ing, concerned in particular with the standardisation of LAN technology, trans-
mission protocols, data transfer rate and wiring.
Infrastructure network
Network with central structure: all
central Router.
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.
Global WAN. A series of protocols have been defined for exchanging data,
Internet
known by the name TCP/IP.
All Network subscribers
Domain name
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 Internet. IP is responsible for addressing subscribers in
a Network
ient. IP determines the paths (routing) along which the data packets travel.
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Network subscribers
Infrastructure network
are identifiable via their
to the IP address.
using IP addresses
can process their Internet traffic.
to connect several
Network subscribers
IP
and transfers data from the sender to the recip-
Network subscribers.
communicate via a
address. DNS assigns a