一、引言 以往,人们对计算机系统的访问都得在计算机及其终端上才能进行。近年来,随着计算机与通信技术的迅速发展,有许多计算机通信产品问世,电话语音卡就是一例。该卡能把输入电话的语音数字化后交给计算机去处理,还能将数字化的语音数据还原成声音送电话播放。电话语音卡在电话与计算机系统之间架起了一座桥梁,使人能通过电话与计算机系统通信。 I. INTRODUCTION In the past, people had to access the computer system in the computer and its terminal can be carried out. In recent years, with the rapid development of computer and communication technology, many computer communication products are available. The telephone voice card is an example. The card can put the voice of the input phone digitized to the computer to deal with, but also the digital voice data is reduced to voice to send the phone to play. A telephone voice card bridges the gap between a phone and a computer system so that people can communicate with the computer system over the phone.