手持式话密机 hand-held speech security unit

全双工话密机 full duplex voice cipher set

宽带话密机 wide-band voice encryptor

无线话密机 radio speech crypto unit

保密电话机 confidential phone ; secure telephone ; privacy telephone set

话密适配机 secure voice adaptor

修改话机密码 New Security COde

话音数据加密机 voicedata encryptor

密码电话机 [通信] ciphony equipment