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TA
Timing in advance.
TCP/IP
Transmission Control Protocol/Internet Protocol.
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.
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 centres, conferences, PIMs /PDAs, pagers, fax,
office equipment, and smart cards. vCard is speci-
fied by IETF.
VGA
Video Graphics Array
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.
WAV
Windows media audio video.
WBMP
Wireless BitMap.
A graphic format optimized for mobile computing
devices.
WML
Wireless Markup Language. A markup language
used for authoring services, fulfilling the same pur-
pose as HyperText Markup Language (HTML) does
on the World Wide Web (WWW). In contrast to
HTML, WML is designed to fit small handheld
devices.
WMLScript
WMLScript can be used to enhance the functional-
ity of a service, just as, for example, Java Script
may be utilized in HTML. It makes it possible to
add procedural logic and computational functions
to WAP-based services.
WSP
Wireless Session Protocol
WTLS
Wireless Transport Layer Security
WWW
World Wide Web
XHTML
Extensible HyperText Markup Language
XML
Extensible Markup Language
51
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