Talking on a cell phone while driving is not illegal in some states (I'd venture to guess most). Also, in some states where it is banned, it's still allowed for

Talking on a cell phone while driving is not illegal in some states (I'd venture to guess most). Also, in some states where it is banned, it's still allowed for people who drive as part of their job. When I was delivering pizza, something like this would have been a gamechanger.