"My phone is turned off and I normally check voicemail once a day around 5pm. The best way to reach me is ..." Works for me. I use the standard iOS features to

"My phone is turned off and I normally check voicemail once a day around 5pm. The best way to reach me is ..." Works for me. I use the standard iOS features to make sure important callers (eg. the children's school) can get through. The trick to getting this to work is to be consistent. Don't tell people you are not reachable and then pick up their calls.