Took me a minute ... but, LOL!
The first VERSA was installed on the B-58 Hustler. During tests it didn't gain the pilots attention. Psychologists were asked to determine what type of voice was needed. They studied everything from actors to cartoon characters but nothing worked. Finally they recommended a Sexy Female Voice was needed.
Try as they might they couldn't find that "voice". One day the Psychologist who was heading he project called HQ SAC to give an update. LO and BEHOLD the telephone operator fit the bill. When he asked her name she wouldn't give it but just her Operator Number. Standard Procedure dontcha know!
The Psychologis rushed to Omaha and found the Operator. She was a 57 year old Grandma but after that she was known as the sexiest female voice in SAC! True Story!