FCC

Federal Communications Commission. US government agency which regulates radio communications.

FR

Full Rate, speech coding.

GGSN

Gateway GPRS Support Node

GIF

Graphics Interchange Format. Format for storing images which also supports animated images. Highly compressed by limiting the colour palette to 16 or 256 colours.

G-MIDI

General MIDI. Specifies a minimum level of performance compatibility.

GPRS

General Packet Radio Services.

GSM

Global System for Mobile Communications. GSM is the world's most widely-used digital mobile phone system, now operating in over 160 countries around the world.

GSM 900

The GSM system family includes GSM 900, GSM 1810 and GSM 1900. There are different phases of roll-out for the GSM system and GSM phones are either phase 1 or phase 2 compliant.

GSM 1810

Also known as DCS 1810 or PCN, this is a GSM digital network working on a frequency of 1810 MHz. It is used in Europe and Asia-Pacific.

GSM 1900

Also known as PCS. Refers to a GSM system running in the 1900MHz band. Used in the USA and Canada, for instance.

White paper Sony Ericsson P1

HR

Half Rate, speech coding.

HSCSD

High Speed Circuit Switched Data.

HTML

HyperText Markup Language.

HTTP

HyperText Transfer Protocol.

IMAP4

Internet Message Access Protocol version 4. Used to collect email from a mail server. Has more features than POP3.

iMelody

A format for monophonic ringtones.

IrDA

Infrared Data Association.

ISDN

Integrated Services Digital Network. Can provide circuit-switched data connections in multiples of 64 Kbps.

ISP

Internet Service Provider.

J2ME™

Java2™ Micro Edition – an edition of the Sun Microsystems Java programming/runtime environment specifying two runtime environment 'configurations' aimed at small devices.

Java™ Phone

An API in Java™ used for interacting with a phone.

JFIF

JPEG File Interchange Format

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Sony Ericsson P1 manual IMelody, IrDA, Java Phone