本规范是WA P无线应用环境（WA E）的一个扩展集，用来支持无线电话应用。无线电话

应用的特性以接口的形式引入，规范中使用的首字母缩略词W TA I表示无线电话应用接口。为

了更好的理解这个规范，读者应对WML [WML]和WMLscr ipt [WML scr ipt]有一定程度了解。-This specification is the WA P Wireless Application Environment (WA E) an extension of the set, to support wireless telephony applications. The characteristics of the wireless telephony application interface was introduced to standardize the use of acronyms W TA I said the wireless telephony application interface. To better understand this specification, the reader should WML [WML] and WMLscr ipt [WML scr ipt] a certain degree of understanding.