I've tried Freedombox before. It...didn't impress me, it hid too much of the actual system under a management interface and it was hard to get in to the system to correct some of the let-us-handle-it things that didn't play well with my network.
I'd have to boot up that image again to remember more, regardless it just didn't do what I wanted from a system.
Zentyal is the same. But the function is good if you don’t need deep shit.
Income never get a card/cal dav setup to work. Bakail and others i tried and gave up. Wanted it local then just sync when at home.
I never bothered with any of the calendar shit, I actually dislike shared and online calendars with a passion.
They touched me inappropriately one night and I won't use them anymore.
So where do you store and backup contacts? And calendar shit so you don’t forget your hamfest next month?