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P800/P802
White Paper, January 2003
116
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 Format
TM
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).
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.