My suggestion is to take your on board, then turn it off for the cruise & turn it on again when you are back in Port Canaveral. On my first 3 day, I had to contact my TA from the ship to ask some questions. Don't know how I would have done that easily or quickly without it. You might need to make that "emergency call" to make sure you turned off the coffee pot or to remind someone to feed the fish (wish we had done that on another trip so our cat would have been fed). after you are out of port, turn it off & enjoy yourself.