When most people think of military hotlines, it is safe to say, the Cold War movie images of a red telephone sitting at the ready in the White House and the Kremlin still dominates. As China and the United States move to set up a line between militaries, the real question is: how is a hotline technically different from a telephone?
News reports refer to a "direct dial" telephone between military establishments. Are we talking here about a dedicated line? Does the telephone use regular undersea cables? Is there a military satellite link being used for this purpose? … Read more