can you register home phone being a land line?
Yes, but remember that the primary purpose of providing a phone number is to receive text msgs regarding an upcoming OhmHour. Unless you have something like MagicJack for your landline, you won't be able to receive a text on your phone. If you don't want text alerts, then a landline number should be fine. You almost certainly will never have a voice phone call from OhmConnect. If you're just cautious about giving out a cell number to avoid the number making its way to other parties and receiving spam calls, there's never been a hint of that happening over the years I've been here.