In many countries outside of the United States, mobile phone subscribers far outnumber the ranks of consumers with Internet access. The Internet was a perfect model. WAP was born. The next generation of portable phone usage goes far beyond voice. A WAP Gateway sits between the Web server and the end user device.
Navigation aids have to be added to allow the user to navigate between cards.
For example, an HTML-based Web page asking you to enter your account number and select which bank account balance you want to view would be presented on one screen on a Web browser. In the corresponding WML file for a cell phone, the same process would likely be split into two cards, one to enter the account number and one to select the type of account. WAP is the de facto worldwide standard for providing Internet communications and advanced telephony services on digital mobile phones, pagers, digital personal assistants and other wireless terminals. This example shows the first two cards in an WML file. The first card displays a list of four possible actions for the end user to select.