电话语音传真查询是利用语音卡的基本功能，结合电话，传真机来进行信息查询的微机应用系统。为了实现系统传真查询的功能，必须要求该语音卡具有传真功能模块，下面以北京五岳合公司的TWSVF语音卡为例说明该系统硬件的一些特点：①该语音卡利用数字信号处理技术及超大规模电路 Telephone voice fax inquiry is the use of the basic functions of voice cards, combined with telephone, fax machine to query information in the computer application system. In order to achieve the function of system fax inquiry, the voice card must be required to have a fax function module. The following shows some features of the system hardware with the TWSVF voice card of Wu Yue Yue Co., Ltd. in Beijing: ① The voice card uses digital signal processing technology and ultra- Circuit