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Telecore IST-2 secure phone
A strange looking device, this is one of the most secure phones in the United States. Telecore's IST-2 telephone is approved by the U.S. government for ultra-secure communications that includes multi-cryptographic security. It also features automatic security authentication and a noise-canceling microphone.
And, it also includes caller ID feature, just so you know it really is the Israeli Prime Minister on the other end of the phone.