USSD | Unstructured Supplementary Services Data. |
VAD | Voice Activated Dialling. |
VAS | Value Added Service. |
WAE | Wireless Application Environment. |
WAN | Wide Area Network. |
WAP | Wireless Application Protocol. Handheld devices, low bandwidth, |
| binary coded, a deck/card metaphor to specify a service. A card is typi- |
| cally a unit of interaction with the user, that is, either presentation 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. |
WBMP | WAP Bitmap. |
WDP | Wireless Datagram Protocol. |
WML | Wireless Markup Language. A markup language used for authoring |
| services, fulfilling the same purpose 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 functionality of a service, just |
| as for example JavaScript may be utilized in HTML. It makes it possi- |
| ble to add procedural logic and computational functions to |
| services, for example. |
WSP | Wireless Session Protocol. |
WTLS | Wireless Transport Layer Security. |
WWW | World Wide Web. |
XML | Extensible Markup Language. |
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