Ericsson W21 User Manual page 81

Glossary
network devices with a variety of information,
such as IP addresses, required for their
operation.
DNS – Domain Name System (or Service)
The distributed name/address mechanism
used in the Internet. It comprises distributed
online databases that contain mappings
between human-readable names and IP
addresses, and servers, which provide
translation services to client applications.
EDGE – Enhanced Data rates for Global
Evolution
A technology that gives GSM the capacity to
handle services for the third generation of
mobile telephony. EDGE provides three times
the data capacity of GPRS.
Encryption
Encryption is an effective way to achieve data
security by translating data into a secret code.
Encryption key
A sequence of characters used for data
encryption. The encrypted data can only be
sent and received by users with access to the
encryption key.
Ethernet
The most common LAN technology, used in
wired networks.
FTP – File Transfer Protocol
A protocol for exchanging files over the
Internet. FTP is most commonly used to
download and upload files from and to
servers.
FWT – Fixed Wireless Terminal
A terminal providing residential and small
office users with broadband services like
high-speed data, voice, and fax connectivity.
Internet access is provided through the
mobile communications network.
Gateway
A network point that acts as an entrance to
another network.
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GPRS – General Packet Radio Service
A packet-based mobile communications
system building on GSM. Advantages over
standard GSM include higher data
transmission speeds, more efficient use of
radio resources and continuous connection to
the network to facilitate more advanced non-
voice services.
GSM – Global System for Mobile
Communication
The second generation mobile system
originally developed in Europe. GSM is
oriented to voice and circuit mode data.
Host
A device (usually a computer) that is
connected to a TCP/IP network, including the
Internet. Each host has a unique IP address.
Host name
The DNS name of a device on a network,
used to simplify the process of locating
computers on a network.
HSDPA – High Speed Downlink Packet
Access
The new standardized evolution of WCDMA
that will enable downlink speeds of up to 14
Mbps.
IGD – Internet Gateway Device
See UPnP IGD.
IEEE – Institute of Electrical and
Electronics Engineers
IEEE (pronounced I-tripleE) is an organization
composed of engineers, scientists, and
students. The IEEE is best known for
developing standards for the computer and
electronics industry. In particular, the IEEE
802 standards for local area networks are
widely followed.
IMEI – International Mobile Equipment
Identity
The IMEI number is a 15 digit numnber which
includes information on the origin, model, and
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