【摘要】 PDA线务通是一种融合了PDA技术、短信技术、电信业务技术和嵌入式技术于一体的新型信息终端 ,它通过与有线电话网 (PSTN)的连接来实现语音通话、文本数据收发等各种功能。本文给出该系统设计方案和实现方法。更多还原

【Abstract】 PDA Telecom Affair Transaction(PTAT) is a new terminal system,which integrates PDA,short message,telecommunication and embedded technology together.And,it makes its users more convenient to realize their telephone talk or access their messages via PSTN.This article gives the design and realization of this PTAT system.更多还原