User Guide

RH-10
System Module CCS Technical Documentation
Page 6 Nokia Corporation Confidential Issue 1 09/2002
Encryption: The transformation of data, for the purpose of privacy, into an unreadable
format until reformatted with a decryption key. 'Public key' encryption utilizes the RSA
(which stands for its developers, Rivest, Shamir, and Adleman) encryption key. PGP, or
Pretty Good Privacy, is a cryptography program for computer data, e-mail, and voice con-
versation.
ESN (Electronic Serial Number): The unique number assigned to a wireless phone by
the manufacturer. According to the Federal Communications Commission, the ESN is to
be fixed and unchangeable - a sort of unique fingerprint for each phone. See also MIN.
FCC (Federal Communications Commission): The government agency responsible
for regulating telecommunications in the United States.
GHz (GigaHertz Billions of Hertz): Personal Communications Services operate in the
1.9 GHz band of the electromagnetic spectrum. See also Hertz, KHz, MHz.
GPS (Global Positioning System): A satellite system using 24 satellites orbiting the
earth at 10,900 miles that enables users to pinpoint precise locations using the satellites
as reference points.
Handsfree: A feature that permits a driver to use a wireless car phone without lifting or
holding the handset. An important safety feature.
HDML (Handheld Device Markup Language): A modification of standard HTML,
developed by Unwired Planet, for use on small screens of mobile phones, PDAs, and pag-
ers. HDML is a text-based markup language, which uses HyperText Transfer Protocol
(HTTP) and is compatible with Web servers.
HTML (HyperText Markup Language): An authoring software language used on the
Web. HTML is used to create Web pages and hyperlinks.
HTTP (HyperText Transfer Protocol): The protocol used by the Web server and the
client browser to communicate and move documents around the Internet.
IM (Instant Messaging): A conversational interface across different platforms and sys-
tems via a wireless instant messaging server. Allows the user to send & receive messages
seamlessly.
IMSI (International Mobile Station Identifier): A number assigned to a mobile sta-
tion by the wireless carrier uniquely identifying the mobile station nationally and inter-
nationally. See also MIN, TMSI
Infrared: A band of the electromagnetic spectrum used for airwave communications
and some fiber-optic transmission systems. Infrared is commonly used for short-range
(up to 20 feet) through-the-air data transmission. Many PC devices have infrared ports,
called Infrared Serial Data Link (IRDA), to synchronize with other devices. IRDA supports
speeds up to 1.5 Mbps.