PNG

Portable Network Graphics. PNG compresses images with millions of colours no loss of detail, but has comparatively large file size. It is not commonly used.

Polyphonic

“Many sounds”. The maximum number of notes an instrument can play at the same time, commonly 16 in MIDI devices.

POP3

Post Office Protocol. Used to collect E-Mail from a mail server.

PSTN

Public Switched Telephone Network, for example ordinary analogue phone line for speech and/or computer modem.

PTD

Personal Trusted Device. Concept in MeT

QCIF

Quarter Common Intermediate Format. A video format size of 176 x 144 pixels.

QQVGA

Quarter Quarter VGA, 160 x 120 pixels.

QVGA

Quarter VGA size, typically refers to a portrait oriented screen 240 pixels wide x 320 pixels high.

RADIUS

Remote Access Dial-In Service. Facility at the ISP or corporation to manage remote data connections.

PDA

Personal Digital Assistant. A handheld computer having functions such as address book, calendar etc.

PNG

Portable Network Graphics. Format for storing images on file with data compression but without lowering of quality (loss of information).

RAS

Remote Access Service.

RMF

Rich Music FormatTM A file format developed by Beatnik combining the compact size of MIDI files with the high quality of MP3 and WAV.

Rx

Receive

SC

Service Centre (for SMS).

P800/P802

White Paper, January 2003

SDK

Software Development Kit

Service Provider

A company that provides services and subscriptions to mobile phone users.

SIM card

Subscriber Identity Module card – a card that must be inserted in any GSM-based mobile terminal. It contains subscriber details, security information and memory for a personal directory of numbers. The card can be a small plug-in type or credit card-sized, but both types have the same functions. The P800 uses the small plug-in card.

SIM-AT

SIM Application Toolkit – a means of providing simple applications that are stored on the SIM card.

SMIL

Synchronized Multimedia Integration Language. Used by MMS to describe how media objects are to be played.

SMS

Short Message Service. Allows messages of up to 160 characters to be sent and received via the network operator's message centre to a mobile phone.

SMSCB

SMS Cell Broadcast.

SMTP

Simple Mail Transfer Protocol. Protocol used to send E-Mail from an E-Mail client via an SMTP server.

SS

Supplementary Service

SWIM

A SWIM card is a SIM card containing a WIM

TCP/IP

Transmission Control Protocol/Internet Protocol.

TE

Terminal Equipment. Generic term for GSM terminals such as phones and PC cards.

Terminal Adaptor

Generic term for the equipment terminating a digital comms line such as an ISDN2 line. The P800 is a Terminal Adaptor since it interfaces to GSM digital data services.

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