Re: Not office hours? No contact
I did the same for quite some time, we all had locked drawers in our desks (or a locker on request, if you hot desked), end of the day, mobile off, in drawer, locked, and leave for home.
After a role change, I gradually stared to work from home more often, one or two days a week, plus started to visit client sites more regularly, bid work, solution workshops, that sort of thing. So the phone stayed with me at that point, but I still turned it off once I got home again, and only on after breakfast (or at least a coffee!).