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据美国AWST 1983年3月7日报导,美国Harris公司为工商业用户推出了一种话音保密终端,它在同现存电话线路联用时,能提供高质量的话音业务,公司声称:该终端类似于供军事部门使用的保密设备。普通的桌式电话机均可以与本公司的保密话音终端相配用。该机包括了Harris公司自己设计制造的16千比特/秒的数传机和Ocean Technology公司提供的话音数码化设备和密码装置。
According to the U.S. AWST, March 7, 1983, Harris Corporation of the United States introduced a voice-secured terminal for business users that provides high-quality voice services when used in conjunction with existing telephone lines. The company claims that the terminal is similar to Security equipment used by the military. The ordinary desk phone can be used with the company’s confidential voice terminals. The aircraft includes Harris own design and manufacture of 16 kilobits / second number of machines and Ocean Technology provided voice digitization equipment and password devices.