I am not sure if it was normal or not for him because we only have the 1 day to reference and the prosecution didn't show anything that tells me it's not his habit, or the defense showing it is. He didn't use it when calling family, or when calling government agencies. I can see him using it if he is calling someone not close to him. I think that would be reasonable for him because of how much he was in the news, etc. I remember a time when all cell phones came up as unknown name/number, no need to use *67, I just can't remember when they started showing up with the number displayed LOL
Also... the thought has crossed my mind that the second call, he hit redial and it didn't connect on her end (it's not on her bill) because when you do *67, you get 2 short beeps (dial tone type beeps) and then you get a regular dial tone, then you dial the number. Hitting redial may not have allowed it to connect properly (no pause after the *67) Pick up your phone and try it, you will hear what I mean LOL Because cell phones and features like that have changed over the years, it's so hard to get a handle on some things because what we do now, maybe couldn't be done 10 years ago. Were smart phones even a thing? I don't think iphones were out yet LOL