Glossary - Nokia 810 User Manual

Glossary

12. Glossary
DTMF tones
DTMF (Dual Tone Multi-Frequency) tones are the tones you hear
when you press the number keys on the phone keypad. DTMF
tones allow you to communicate with voice mailboxes,
computerised telephony systems, etc.
GPRS
GPRS (General Packet Radio Service) enables wireless data
transmission. For wireless access to data networks, you will
need a GPRS access point from your network operator or service
provider. For further information, see GPRS (General Packet
Radio Service) on page 46.
GSM
GSM, the Global System for Mobile Communication, is the
technical standard for mobile radio networks.
HSCSD
HSCSD (High Speed Circuit Switched Data) makes data
connections faster for attractive GSM data services. For further
information, see HSCSD (High Speed Circuit Switched Data) on
page 47.
IMEI
The IMEI is the serial number of your device and is supplied with
the car phone kit.
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PIN-Code
The PIN (Personal Identification Number) is a 4- to 8-digit code
which protects your SIM card from unauthorised use. The PIN
code is supplied with the SIM card. For further information, see
Access codes required for the SIM card on page 11.
PUK-Code
The PUK (Personal Unblocking Key) is an 8-digit code which is
required to change a disabled PIN code.
The PUK code is supplied with the SIM card. If you lose the code
or it has not been provided with the SIM card, contact your
network operator.
SIM-Card
The SIM (Subscriber Identity Module) card contains all the
information the cellular network needs to identify the network
user. The SIM card also contains security-related data.
SMS
The network service SMS (Short Message Service) allows you to
send short text messages (of up to 160 characters) to mobile
phones and to receive short text messages from other mobile
users if this service is enabled.
SMSC number
The SMSC (Short Message Service Centre) number is needed for
sending of short messages.