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White Paper V600
65 August 2005
PDP
Packet Data Protocol
PIM
Personal Information Management
PNG
Portable Network Graphic
QCIF
Quarter Common Intermediate Format
QVGA
Quarter Video Graphics Array
RPE
Regular Pulse Excited codec.
RTSP
Real Time Streaming Protocol session control.
SMS-C
Service Centre (for SMS).
Service provider
A company that provides services and subscrip-
tions to mobile phone users.
SI
Service Indication
SL
Service Loading.
SIM card
Subscriber Identity Module card – a card that must
be inserted in any GSM-based mobile phone. 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
phone uses the small plug-in card.
SMS
Short Messaging Service. Allows messages of up
to 160 characters to be sent and received via the
network operator’s message centre to a mobile
phone.
SP-MIDI
SP-MIDI stands for Scalable Polyphony MIDI.
SS
Supplementary Services
SSL
Secure Socket Layer
TA
Timing in Advance
TCP/IP
Transmission Control Protocol/Internet Protocol
TLS
Transport Layer Security
Triple band
GSM 900/1800/1900
UI
User interface
UMTS
Universal Mobile Telecommunications System. The
telecommunications system, incorporating mobile
cellular and other functionality, that is the subject of
standards produced by 3GPP™.
URL
Uniform Resource Locator.
The global address of documents and other
resources on the World Wide Web.
USSD
Unstructured Supplementary Services Data