On the second day of the war, Egyptian President Nasser called King Hussein of Jordan to discuss the state of the fronts and the state of the Arab armies.

Israeli SIGINT (Unit 515) heard Nasser giving Hussein a false picture of the fighting, claiming the Arab armies were winning. He claimed his army had destroyed half of the Israeli Air Force and that Egyptian forces were advancing in the Negev, both of which were untrue.

The transcript of the conversation was published in the media and was not only a technological and intelligence achievement, but also influenced the course of the war and the international arena. The event showed the importance of SIGINT in modern warfare and the important role played by IDF intelligence.