能绝对保密的电话德国西门子公司不久前宣布制成了一种绝对保密的电话，任何偷听者对它都会束手无策。这种名为ＣＲＹＰＳＥＦ１００的电话机从外表看来与一般电话机无异，但是当你同对方接通电话并打算进行保密通话或文传时，需在机身的右侧插进一张你所特有的电子卡，然... Absolutely confidential telephone Germany’s Siemens recently announced the formation of an absolutely confidential telephone, any eavesdropper will be at a loss what to do with it. The phone, called CRYPSEF100, looks like a normal phone, but when you are on the phone and intend to hold a confidential call or text, you need to insert a Unique electronic card, however ...