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GSM 1800

Also known as DCS 1800 or PCN, this is a GSM digital network working on a frequency of 1800 MHz. It is used in Europe and Asia-Pacific.

GSM 1900

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

HSCSD

High-Speed Circuit-Switched Data (HSCSD) is circuit-switched wireless data transmission for mobile users at data rates of up to 64 kbps.

HTML

Hypertext Markup Language is the set of markup symbols or codes inserted in a file intended for display on a World Wide Web browser page. The markup tells the Web browser how to display a Web page's words and images.

HTTP

HyperText Transfer Protocol. The communications protocol used to connect to servers on the World Wide Web. Its primary function is to establish a connection with a Web server and transmit HTML pages to the client browser.

IMAP4

Internet Message Access Protocol (the latest version is IMAP4) is a standard client/server protocol for accessing email from

your local server. The email is received and held for you by your IMAP server. You (or your client email receiver) can view just the heading and the sender of the letter and then decide whether to download the mail.

IrDA

The Infrared Data Association is dedicated to developing standards for wireless, infrared transmission systems between devices. With IrDA ports, a device such as your P910i can exchange data with other devices without a cable connection. IrDA requires line-of-sight transmission.

ISDN

Integrated Services Digital Network. Communication protocol offered by phone companies that permits phone networks to carry data, voice, and other source traffic. Selecting ISDN for CSD/HSCSD connections provides quicker call setup.

ISP

Internet Service Provider. An organization that provides access to the Internet.

JFIF

JPEG File Interchange Format.

JPEG

Joint Photographic Experts Group, best known for the .JPG format for still image compression.

Terms and definitions

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