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White paper W580
55 June 2008
Quad-Band
GSM 850/900/1800/1900.
QVGA
Quarter Video Graphics Array
RTSP
Real Time Streaming Protocol session control.
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 center to a mobile
phone.
SP-MIDI
SP-MIDI stands for Scalable Polyphony MIDI.
SS
Supplementary Services
SSL
Secure Socket Layer
TLS
Transport Layer Security
UI
User interface
URL
Uniform Resource Locator.
The global address of documents and other
resources on the World Wide Web.
USSD
Unstructured Supplementary Services Data
vCard
vCard automates the exchange of personal infor-
mation typically found on a traditional business
card, for use in applications such as Internet mail,
voice mail, Web browsers, telephony applications,
call centers, conferences, PIMs /PDAs, pagers, fax,
office equipment, and smart cards. vCard is speci
-
fied by IETF.
VGA
Video Graphics Array
VHF
Very high frequency. A band of radio frequencies
falling between 30 and 300 MegaHertz.
WAP
Wireless Application Protocol. Handheld devices,
low bandwidth, binary coded, a deck/card meta
-
phor to specify a service. A card is typically a unit
of interaction with the user, that is, either presenta
-
tion of information or request for information from
the user. A collection of cards is called a deck,
which usually constitutes a service.
WAP Application
A collection of WML cards, with the new context
attribute set in the entry card.
WAP service
A WML application residing on a web site.