Here is actual audio from one radio station that day.

In the scramble at NORAD to cancel the inadvertent EAN, they sent a cancel down the line, but it too contained the "activate" code word again, "hatefulness." Because "hatefulness" wasn't the correct code word to cancel the EAN, they then had to send a second cancel message with the correct code word, "impish."

Ten beeps and not seven trumpets. How biblical. (Inaccurate, but biblical.)