Glossary
Glossary
3G
3rd generation mobile communications. A
digital system for mobile communications
which aims at global use and provides
increased bandwidth. 3G lets a mobile
device user access a wide variety of services,
such as multimedia.
Ad-hoc
operating
mode
A WLAN network mode where two or more
devices connect to each other using WLAN
directly without a WLAN access point.
Cookies
Cookies are little pieces of information,
given by the server to you, to store
information about your visits to a web site.
When you accept cookies, the server is able
to evaluate your use of the web site, what
you are interested in, what you want to
read, and so on.
DNS
Domain name service. An internet service
that translates domain names such as
www.nokia.com into IP addresses such as
192.100.124.195. Domain names are easier
to remember but this translation is needed
because the internet is based on IP
addresses.
DTMF tones
Dual-tone multifrequency tones. The DTMF
system is used by touch-tone telephones.
DTMF assigns a specific frequency, or tone,
to each key so that it can easily be identified
by a microprocessor. DTMF tones allow you
to communicate with voice mailboxes,
computerised telephony systems, and so
on.
EAP
Extensible authentication protocol. EAP
plug-ins are used in wireless networks to
authenticate wireless devices and
authentication servers.
EGPRS
Enhanced GPRS. EGPRS is similar to GPRS,
but it enables faster connection. For
availability and data transfer speed, contact
your service provider.
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150
GPRS
General packet radio service. GPRS enables
wireless access for mobile phones to data
networks (network service). GPRS uses
packet data technology where information
is sent in short bursts of data over the
mobile network. The benefit of sending
data in packets is that the network is
occupied only when sending or receiving
data. As GPRS uses the network efficiently,
it allows for quick data connection setup
and fast data transmission speeds.
You must subscribe to the GPRS service. For
availability and subscription to GPRS,
contact your service provider.
During a voice call, you cannot establish a
GPRS connection, and any existing GPRS
connection is put on hold unless the
network supports dual transfer mode.
GPS
Global positioning system. GPS is a
worldwide radio navigation system.
HSDPA
High-speed downlink packet access. HSDPA
brings high-speed data delivery to 3G
terminals, ensuring that users requiring
effective multimedia capabilities benefit
from data rates previously unavailable
because of limitations in the radio access
network.
HTTP
Hypertext transfer protocol. A document
transfer protocol used in the web.
HTTPS
HTTP over a secure connection.
IMAP4
Internet mail access protocol, version 4. A
protocol used for accessing your remote
mailbox.
Internet
access point
An access point is where your device
connects to a network. To use e-mail and
multimedia services or to connect to the
internet and browse web pages, you must
first define internet access points for these
services.
Infrastructure
operating
mode
A WLAN network mode where devices are
connected to WLAN using a WLAN access
point.
PIN
Personal identity number. The PIN code
protects your device from unauthorised
use. The PIN code is supplied with the SIM
card. If the PIN code request is selected, the
code is required each time the device is
switched on. The PIN code must be 4 to 8
digits long.
PIN2
The PIN2 code is supplied with some SIM
cards. The PIN2 code is required to access
certain functions supported by the SIM card.
The length of the PIN2 code is 4 to 8 digits.
POP3
Post office protocol, version 3. A common
mail protocol that can be used for accessing
your remote mailbox.
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151
PUK and PUK2 Personal Unblocking Key. PUK and PUK2
codes are required to change a blocked PIN
code or PIN2 code, respectively. The length
of the code is 8 digits.
SIP
Session Initiation Protocol. SIP is used for
creating, modifying, and terminating
certain types of communication sessions
with one or more participants.
SSID
Service set identifier. SSID is the name that
identifies the specific WLAN.
Streaming
Streaming audio and video files means
playing them directly from the web without
downloading them first to your device.
UMTS
Universal Mobile Telecommunications
System. UMTS is a 3G mobile
communication system. Besides voice and
data, UMTS enables audio and video
delivery to wireless devices.
When you use your device in GSM and UMTS
networks, multiple data connections can be
active at the same time, and access points
can share a data connection. In the UMTS
network, data connections remain active
during voice calls. You can, for example,
browse the web faster than previously
possible while simultaneously speaking on
the phone.
UPIN
PIN code used in UMTS network.
UPUK
UPIN Unblocking Key. UPUK code is required
to change a blocked UPIN code or PIN2 code.
The length of the code is 8 digits.
USIM
SIM card used in UMTS network.
USSD
command
A service request, such as request to
activate an application or configure various
settings remotely, that you can send to your
operator or service provider with your
device.
VoIP
Voice over IP technology. VoIP is a set of
protocols that facilitate phone calls over an
IP network, such as the internet.
VPN
Virtual private network. VPN creates a
secure connection to compatible corporate
intranet and services, such as e-mail.
WAP
Wireless application protocol. WAP is an
international standard for wireless
communication.
WEP
Wired equivalent privacy. WEP is an
encryption method that encrypts data
before it is transmitted in WLAN.
WLAN
Wireless local area network.
WPA
Wi-Fi Protected Access. Security method for
WLAN.
WPA2
Wi-Fi Protected Access 2. Security method
for WLAN.
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