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White Paper W950
69 June 2006
Preliminary version - PA4
MO
Mobile Origination. Such as, an SMS message sent
from a mobile terminal.
MP3
MPEG Audio Layer 3. An audio compression tech-
nology that is part of MPEG-1 and MPEG-2 specifi-
cations. Commonly used to distribute music on the
Internet and on portable players.
MPEG
Moving Picture Experts Group. A working group of
ISO/IEC in charge of the development of standards
for coded representation of digital audio and video.
MS
Mobile Station. (Phone and SIM card)
MT
Mobile Termination.
OS
Operating System, such as Symbian OS, Linux,
Microsoft™ Windows™.
OTA
Over-the Air Configuration. To provide settings for
the phone by way of sending a message, SMS,
over the network to the phone. This reduces the
need for the user to configure the phone manually.
PC
Personal Computer.
PCS
Personal Communications Services, often used to
describe GSM1900 networks.
PDA
Personal Digital Assistant. A handheld computer
having functions such as address book, calendar
etc.
PDP
Packet Data Protocol.
Personal Java™
An edition of Java™ appropriate for mobile devices
such as PDAs.
Phone book
A memory in the SIM card where phone numbers
can be stored and accessed by name or position.
PIM
Personal Information Management. Generic term
for applications such as Contacts, Calendar, Tasks
etc.
PKI
Public Key Infrastructure.
PNG
Portable Network Graphics. Format for storing
images on file with data compression but without
lowering of quality (loss of information).
POP3
Post Office Protocol. Used to collect email from a
mail server.
PSTN
Public Switched Telephone Network, such as, ordi-
nary analogue phone line for speech and/or com-
puter modem.
PTD
Personal Trusted Device. Concept in MeT
QCIF
Quarter Common Intermediate Format. A video for-
mat size of 176 x 144 lines.
QQVGA
Quarter Quarter VGA, 160 x 120 pixels.
QVGA
Quarter VGA size, typically refers to a portrait ori-
ented screen 240 pixels wide x 320 pixels high.
RAS
Remote Access Service.